1140 lines
40 KiB
Plaintext
1140 lines
40 KiB
Plaintext
#
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# Character device configuration
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#
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menu "Character devices"
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config VT
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bool "Virtual terminal" if EMBEDDED
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depends on !S390
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select INPUT
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default y
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---help---
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If you say Y here, you will get support for terminal devices with
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display and keyboard devices. These are called "virtual" because you
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can run several virtual terminals (also called virtual consoles) on
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one physical terminal. This is rather useful, for example one
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virtual terminal can collect system messages and warnings, another
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one can be used for a text-mode user session, and a third could run
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an X session, all in parallel. Switching between virtual terminals
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is done with certain key combinations, usually Alt-<function key>.
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The setterm command ("man setterm") can be used to change the
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properties (such as colors or beeping) of a virtual terminal. The
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man page console_codes(4) ("man console_codes") contains the special
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character sequences that can be used to change those properties
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directly. The fonts used on virtual terminals can be changed with
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the setfont ("man setfont") command and the key bindings are defined
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with the loadkeys ("man loadkeys") command.
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You need at least one virtual terminal device in order to make use
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of your keyboard and monitor. Therefore, only people configuring an
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embedded system would want to say N here in order to save some
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memory; the only way to log into such a system is then via a serial
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or network connection.
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If unsure, say Y, or else you won't be able to do much with your new
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shiny Linux system :-)
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config CONSOLE_TRANSLATIONS
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depends on VT
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default y
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bool "Enable character translations in console" if EMBEDDED
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---help---
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This enables support for font mapping and Unicode translation
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on virtual consoles.
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config VT_CONSOLE
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bool "Support for console on virtual terminal" if EMBEDDED
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depends on VT
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default y
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---help---
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The system console is the device which receives all kernel messages
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and warnings and which allows logins in single user mode. If you
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answer Y here, a virtual terminal (the device used to interact with
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a physical terminal) can be used as system console. This is the most
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common mode of operations, so you should say Y here unless you want
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the kernel messages be output only to a serial port (in which case
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you should say Y to "Console on serial port", below).
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If you do say Y here, by default the currently visible virtual
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terminal (/dev/tty0) will be used as system console. You can change
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that with a kernel command line option such as "console=tty3" which
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would use the third virtual terminal as system console. (Try "man
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bootparam" or see the documentation of your boot loader (lilo or
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loadlin) about how to pass options to the kernel at boot time.)
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If unsure, say Y.
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config HW_CONSOLE
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bool
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depends on VT && !S390 && !UML
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default y
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config VT_HW_CONSOLE_BINDING
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bool "Support for binding and unbinding console drivers"
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depends on HW_CONSOLE
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default n
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---help---
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The virtual terminal is the device that interacts with the physical
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terminal through console drivers. On these systems, at least one
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console driver is loaded. In other configurations, additional console
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drivers may be enabled, such as the framebuffer console. If more than
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1 console driver is enabled, setting this to 'y' will allow you to
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select the console driver that will serve as the backend for the
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virtual terminals.
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See <file:Documentation/console/console.txt> for more
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information. For framebuffer console users, please refer to
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<file:Documentation/fb/fbcon.txt>.
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config DEVMEM
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bool "Memory device driver"
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default y
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help
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The memory driver provides two character devices, mem and kmem, which
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provide access to the system's memory. The mem device is a view of
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physical memory, and each byte in the device corresponds to the
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matching physical address. The kmem device is the same as mem, but
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the addresses correspond to the kernel's virtual address space rather
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than physical memory. These devices are standard parts of a Linux
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system and most users should say Y here. You might say N if very
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security conscience or memory is tight.
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config DEVKMEM
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bool "/dev/kmem virtual device support"
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default y
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help
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Say Y here if you want to support the /dev/kmem device. The
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/dev/kmem device is rarely used, but can be used for certain
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kind of kernel debugging operations.
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When in doubt, say "N".
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config BFIN_JTAG_COMM
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tristate "Blackfin JTAG Communication"
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depends on BLACKFIN
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help
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Add support for emulating a TTY device over the Blackfin JTAG.
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To compile this driver as a module, choose M here: the
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module will be called bfin_jtag_comm.
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config BFIN_JTAG_COMM_CONSOLE
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bool "Console on Blackfin JTAG"
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depends on BFIN_JTAG_COMM=y
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config SERIAL_NONSTANDARD
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bool "Non-standard serial port support"
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depends on HAS_IOMEM
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---help---
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Say Y here if you have any non-standard serial boards -- boards
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which aren't supported using the standard "dumb" serial driver.
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This includes intelligent serial boards such as Cyclades,
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Digiboards, etc. These are usually used for systems that need many
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serial ports because they serve many terminals or dial-in
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connections.
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Note that the answer to this question won't directly affect the
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kernel: saying N will just cause the configurator to skip all
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the questions about non-standard serial boards.
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Most people can say N here.
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config COMPUTONE
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tristate "Computone IntelliPort Plus serial support"
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depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
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---help---
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This driver supports the entire family of Intelliport II/Plus
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controllers with the exception of the MicroChannel controllers and
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products previous to the Intelliport II. These are multiport cards,
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which give you many serial ports. You would need something like this
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to connect more than two modems to your Linux box, for instance in
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order to become a dial-in server. If you have a card like that, say
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Y here and read <file:Documentation/serial/computone.txt>.
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To compile this driver as module, choose M here: the
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module will be called ip2.
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config ROCKETPORT
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tristate "Comtrol RocketPort support"
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depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
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help
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This driver supports Comtrol RocketPort and RocketModem PCI boards.
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These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or
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modems. For information about the RocketPort/RocketModem boards
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and this driver read <file:Documentation/serial/rocket.txt>.
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To compile this driver as a module, choose M here: the
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module will be called rocket.
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If you want to compile this driver into the kernel, say Y here. If
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you don't have a Comtrol RocketPort/RocketModem card installed, say N.
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config CYCLADES
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tristate "Cyclades async mux support"
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depends on SERIAL_NONSTANDARD && (PCI || ISA)
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select FW_LOADER
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---help---
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This driver supports Cyclades Z and Y multiserial boards.
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You would need something like this to connect more than two modems to
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your Linux box, for instance in order to become a dial-in server.
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For information about the Cyclades-Z card, read
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<file:Documentation/serial/README.cycladesZ>.
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To compile this driver as a module, choose M here: the
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module will be called cyclades.
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If you haven't heard about it, it's safe to say N.
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config CYZ_INTR
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bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)"
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depends on EXPERIMENTAL && CYCLADES
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help
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The Cyclades-Z family of multiport cards allows 2 (two) driver op
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modes: polling and interrupt. In polling mode, the driver will check
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the status of the Cyclades-Z ports every certain amount of time
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(which is called polling cycle and is configurable). In interrupt
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mode, it will use an interrupt line (IRQ) in order to check the
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status of the Cyclades-Z ports. The default op mode is polling. If
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unsure, say N.
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config DIGIEPCA
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tristate "Digiboard Intelligent Async Support"
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depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
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---help---
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This is a driver for Digi International's Xx, Xeve, and Xem series
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of cards which provide multiple serial ports. You would need
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something like this to connect more than two modems to your Linux
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box, for instance in order to become a dial-in server. This driver
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supports the original PC (ISA) boards as well as PCI, and EISA. If
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you have a card like this, say Y here and read the file
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<file:Documentation/serial/digiepca.txt>.
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To compile this driver as a module, choose M here: the
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module will be called epca.
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config ESPSERIAL
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tristate "Hayes ESP serial port support"
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depends on SERIAL_NONSTANDARD && ISA && ISA_DMA_API && BROKEN
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help
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This is a driver which supports Hayes ESP serial ports. Both single
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port cards and multiport cards are supported. Make sure to read
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<file:Documentation/hayes-esp.txt>.
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To compile this driver as a module, choose M here: the
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module will be called esp.
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If unsure, say N.
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config MOXA_INTELLIO
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tristate "Moxa Intellio support"
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depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
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select FW_LOADER
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help
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Say Y here if you have a Moxa Intellio multiport serial card.
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To compile this driver as a module, choose M here: the
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module will be called moxa.
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config MOXA_SMARTIO
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tristate "Moxa SmartIO support v. 2.0"
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depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA)
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help
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Say Y here if you have a Moxa SmartIO multiport serial card and/or
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want to help develop a new version of this driver.
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This is upgraded (1.9.1) driver from original Moxa drivers with
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changes finally resulting in PCI probing.
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This driver can also be built as a module. The module will be called
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mxser. If you want to do that, say M here.
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config ISI
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tristate "Multi-Tech multiport card support (EXPERIMENTAL)"
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depends on SERIAL_NONSTANDARD && PCI
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select FW_LOADER
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help
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This is a driver for the Multi-Tech cards which provide several
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serial ports. The driver is experimental and can currently only be
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built as a module. The module will be called isicom.
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If you want to do that, choose M here.
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config SYNCLINK
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tristate "Microgate SyncLink card support"
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depends on SERIAL_NONSTANDARD && PCI && ISA_DMA_API
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help
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Provides support for the SyncLink ISA and PCI multiprotocol serial
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adapters. These adapters support asynchronous and HDLC bit
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synchronous communication up to 10Mbps (PCI adapter).
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This driver can only be built as a module ( = code which can be
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inserted in and removed from the running kernel whenever you want).
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The module will be called synclink. If you want to do that, say M
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here.
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config SYNCLINKMP
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tristate "SyncLink Multiport support"
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depends on SERIAL_NONSTANDARD && PCI
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help
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Enable support for the SyncLink Multiport (2 or 4 ports)
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serial adapter, running asynchronous and HDLC communications up
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to 2.048Mbps. Each ports is independently selectable for
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RS-232, V.35, RS-449, RS-530, and X.21
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This driver may be built as a module ( = code which can be
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inserted in and removed from the running kernel whenever you want).
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The module will be called synclinkmp. If you want to do that, say M
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here.
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config SYNCLINK_GT
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tristate "SyncLink GT/AC support"
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depends on SERIAL_NONSTANDARD && PCI
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help
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Support for SyncLink GT and SyncLink AC families of
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synchronous and asynchronous serial adapters
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manufactured by Microgate Systems, Ltd. (www.microgate.com)
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config N_HDLC
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tristate "HDLC line discipline support"
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depends on SERIAL_NONSTANDARD
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help
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Allows synchronous HDLC communications with tty device drivers that
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support synchronous HDLC such as the Microgate SyncLink adapter.
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This driver can only be built as a module ( = code which can be
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inserted in and removed from the running kernel whenever you want).
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The module will be called n_hdlc. If you want to do that, say M
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here.
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config RISCOM8
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tristate "SDL RISCom/8 card support"
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depends on SERIAL_NONSTANDARD
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help
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This is a driver for the SDL Communications RISCom/8 multiport card,
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which gives you many serial ports. You would need something like
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this to connect more than two modems to your Linux box, for instance
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in order to become a dial-in server. If you have a card like that,
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say Y here and read the file <file:Documentation/serial/riscom8.txt>.
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Also it's possible to say M here and compile this driver as kernel
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loadable module; the module will be called riscom8.
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config SPECIALIX
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tristate "Specialix IO8+ card support"
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depends on SERIAL_NONSTANDARD
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help
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This is a driver for the Specialix IO8+ multiport card (both the
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ISA and the PCI version) which gives you many serial ports. You
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would need something like this to connect more than two modems to
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your Linux box, for instance in order to become a dial-in server.
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If you have a card like that, say Y here and read the file
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<file:Documentation/serial/specialix.txt>. Also it's possible to say
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M here and compile this driver as kernel loadable module which will be
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called specialix.
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config SX
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tristate "Specialix SX (and SI) card support"
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depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA) && BROKEN
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help
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This is a driver for the SX and SI multiport serial cards.
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Please read the file <file:Documentation/serial/sx.txt> for details.
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This driver can only be built as a module ( = code which can be
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inserted in and removed from the running kernel whenever you want).
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The module will be called sx. If you want to do that, say M here.
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config RIO
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tristate "Specialix RIO system support"
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depends on SERIAL_NONSTANDARD && BROKEN
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help
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This is a driver for the Specialix RIO, a smart serial card which
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drives an outboard box that can support up to 128 ports. Product
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information is at <http://www.perle.com/support/documentation.html#multiport>.
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There are both ISA and PCI versions.
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config RIO_OLDPCI
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bool "Support really old RIO/PCI cards"
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depends on RIO
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help
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Older RIO PCI cards need some initialization-time configuration to
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determine the IRQ and some control addresses. If you have a RIO and
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this doesn't seem to work, try setting this to Y.
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config STALDRV
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bool "Stallion multiport serial support"
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depends on SERIAL_NONSTANDARD
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help
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Stallion cards give you many serial ports. You would need something
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like this to connect more than two modems to your Linux box, for
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instance in order to become a dial-in server. If you say Y here,
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you will be asked for your specific card model in the next
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questions. Make sure to read <file:Documentation/serial/stallion.txt>
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in this case. If you have never heard about all this, it's safe to
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say N.
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config STALLION
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tristate "Stallion EasyIO or EC8/32 support"
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depends on STALDRV && (ISA || EISA || PCI)
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help
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If you have an EasyIO or EasyConnection 8/32 multiport Stallion
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card, then this is for you; say Y. Make sure to read
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<file:Documentation/serial/stallion.txt>.
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To compile this driver as a module, choose M here: the
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module will be called stallion.
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config ISTALLION
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tristate "Stallion EC8/64, ONboard, Brumby support"
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depends on STALDRV && (ISA || EISA || PCI)
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help
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If you have an EasyConnection 8/64, ONboard, Brumby or Stallion
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serial multiport card, say Y here. Make sure to read
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<file:Documentation/serial/stallion.txt>.
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To compile this driver as a module, choose M here: the
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module will be called istallion.
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config NOZOMI
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tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
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depends on PCI && EXPERIMENTAL
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help
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If you have a HSDPA driver Broadband Wireless Data Card -
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Globe Trotter PCMCIA card, say Y here.
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To compile this driver as a module, choose M here, the module
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will be called nozomi.
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config A2232
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tristate "Commodore A2232 serial support (EXPERIMENTAL)"
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depends on EXPERIMENTAL && ZORRO && BROKEN
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---help---
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This option supports the 2232 7-port serial card shipped with the
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Amiga 2000 and other Zorro-bus machines, dating from 1989. At
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a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
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each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
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ports were connected with 8 pin DIN connectors on the card bracket,
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for which 8 pin to DB25 adapters were supplied. The card also had
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jumpers internally to toggle various pinning configurations.
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This driver can be built as a module; but then "generic_serial"
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will also be built as a module. This has to be loaded before
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"ser_a2232". If you want to do this, answer M here.
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config SGI_SNSC
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bool "SGI Altix system controller communication support"
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depends on (IA64_SGI_SN2 || IA64_GENERIC)
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help
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If you have an SGI Altix and you want to enable system
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controller communication from user space (you want this!),
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say Y. Otherwise, say N.
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config SGI_TIOCX
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bool "SGI TIO CX driver support"
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depends on (IA64_SGI_SN2 || IA64_GENERIC)
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help
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If you have an SGI Altix and you have fpga devices attached
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to your TIO, say Y here, otherwise say N.
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config SGI_MBCS
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tristate "SGI FPGA Core Services driver support"
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depends on SGI_TIOCX
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help
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If you have an SGI Altix with an attached SABrick
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say Y or M here, otherwise say N.
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source "drivers/serial/Kconfig"
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config UNIX98_PTYS
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bool "Unix98 PTY support" if EMBEDDED
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default y
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---help---
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A pseudo terminal (PTY) is a software device consisting of two
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halves: a master and a slave. The slave device behaves identical to
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a physical terminal; the master device is used by a process to
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read data from and write data to the slave, thereby emulating a
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terminal. Typical programs for the master side are telnet servers
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and xterms.
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Linux has traditionally used the BSD-like names /dev/ptyxx for
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masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
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has a number of problems. The GNU C library glibc 2.1 and later,
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however, supports the Unix98 naming standard: in order to acquire a
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pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
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terminal is then made available to the process and the pseudo
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terminal slave can be accessed as /dev/pts/<number>. What was
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traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
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All modern Linux systems use the Unix98 ptys. Say Y unless
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you're on an embedded system and want to conserve memory.
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config DEVPTS_MULTIPLE_INSTANCES
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bool "Support multiple instances of devpts"
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depends on UNIX98_PTYS
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default n
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---help---
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|
Enable support for multiple instances of devpts filesystem.
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If you want to have isolated PTY namespaces (eg: in containers),
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|
say Y here. Otherwise, say N. If enabled, each mount of devpts
|
|
filesystem with the '-o newinstance' option will create an
|
|
independent PTY namespace.
|
|
|
|
config LEGACY_PTYS
|
|
bool "Legacy (BSD) PTY support"
|
|
default y
|
|
---help---
|
|
A pseudo terminal (PTY) is a software device consisting of two
|
|
halves: a master and a slave. The slave device behaves identical to
|
|
a physical terminal; the master device is used by a process to
|
|
read data from and write data to the slave, thereby emulating a
|
|
terminal. Typical programs for the master side are telnet servers
|
|
and xterms.
|
|
|
|
Linux has traditionally used the BSD-like names /dev/ptyxx
|
|
for masters and /dev/ttyxx for slaves of pseudo
|
|
terminals. This scheme has a number of problems, including
|
|
security. This option enables these legacy devices; on most
|
|
systems, it is safe to say N.
|
|
|
|
|
|
config LEGACY_PTY_COUNT
|
|
int "Maximum number of legacy PTY in use"
|
|
depends on LEGACY_PTYS
|
|
range 0 256
|
|
default "256"
|
|
---help---
|
|
The maximum number of legacy PTYs that can be used at any one time.
|
|
The default is 256, and should be more than enough. Embedded
|
|
systems may want to reduce this to save memory.
|
|
|
|
When not in use, each legacy PTY occupies 12 bytes on 32-bit
|
|
architectures and 24 bytes on 64-bit architectures.
|
|
|
|
config BRIQ_PANEL
|
|
tristate 'Total Impact briQ front panel driver'
|
|
depends on PPC_CHRP
|
|
---help---
|
|
The briQ is a small footprint CHRP computer with a frontpanel VFD, a
|
|
tristate led and two switches. It is the size of a CDROM drive.
|
|
|
|
If you have such one and want anything showing on the VFD then you
|
|
must answer Y here.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called briq_panel.
|
|
|
|
It's safe to say N here.
|
|
|
|
config BFIN_OTP
|
|
tristate "Blackfin On-Chip OTP Memory Support"
|
|
depends on BLACKFIN && (BF52x || BF54x)
|
|
default y
|
|
help
|
|
If you say Y here, you will get support for a character device
|
|
interface into the One Time Programmable memory pages that are
|
|
stored on the Blackfin processor. This will not get you access
|
|
to the secure memory pages however. You will need to write your
|
|
own secure code and reader for that.
|
|
|
|
To compile this driver as a module, choose M here: the module
|
|
will be called bfin-otp.
|
|
|
|
If unsure, it is safe to say Y.
|
|
|
|
config BFIN_OTP_WRITE_ENABLE
|
|
bool "Enable writing support of OTP pages"
|
|
depends on BFIN_OTP
|
|
default n
|
|
help
|
|
If you say Y here, you will enable support for writing of the
|
|
OTP pages. This is dangerous by nature as you can only program
|
|
the pages once, so only enable this option when you actually
|
|
need it so as to not inadvertently clobber data.
|
|
|
|
If unsure, say N.
|
|
|
|
config PRINTER
|
|
tristate "Parallel printer support"
|
|
depends on PARPORT
|
|
---help---
|
|
If you intend to attach a printer to the parallel port of your Linux
|
|
box (as opposed to using a serial printer; if the connector at the
|
|
printer has 9 or 25 holes ["female"], then it's serial), say Y.
|
|
Also read the Printing-HOWTO, available from
|
|
<http://www.tldp.org/docs.html#howto>.
|
|
|
|
It is possible to share one parallel port among several devices
|
|
(e.g. printer and ZIP drive) and it is safe to compile the
|
|
corresponding drivers into the kernel.
|
|
|
|
To compile this driver as a module, choose M here and read
|
|
<file:Documentation/parport.txt>. The module will be called lp.
|
|
|
|
If you have several parallel ports, you can specify which ports to
|
|
use with the "lp" kernel command line option. (Try "man bootparam"
|
|
or see the documentation of your boot loader (lilo or loadlin) about
|
|
how to pass options to the kernel at boot time.) The syntax of the
|
|
"lp" command line option can be found in <file:drivers/char/lp.c>.
|
|
|
|
If you have more than 8 printers, you need to increase the LP_NO
|
|
macro in lp.c and the PARPORT_MAX macro in parport.h.
|
|
|
|
config LP_CONSOLE
|
|
bool "Support for console on line printer"
|
|
depends on PRINTER
|
|
---help---
|
|
If you want kernel messages to be printed out as they occur, you
|
|
can have a console on the printer. This option adds support for
|
|
doing that; to actually get it to happen you need to pass the
|
|
option "console=lp0" to the kernel at boot time.
|
|
|
|
If the printer is out of paper (or off, or unplugged, or too
|
|
busy..) the kernel will stall until the printer is ready again.
|
|
By defining CONSOLE_LP_STRICT to 0 (at your own risk) you
|
|
can make the kernel continue when this happens,
|
|
but it'll lose the kernel messages.
|
|
|
|
If unsure, say N.
|
|
|
|
config PPDEV
|
|
tristate "Support for user-space parallel port device drivers"
|
|
depends on PARPORT
|
|
---help---
|
|
Saying Y to this adds support for /dev/parport device nodes. This
|
|
is needed for programs that want portable access to the parallel
|
|
port, for instance deviceid (which displays Plug-and-Play device
|
|
IDs).
|
|
|
|
This is the parallel port equivalent of SCSI generic support (sg).
|
|
It is safe to say N to this -- it is not needed for normal printing
|
|
or parallel port CD-ROM/disk support.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called ppdev.
|
|
|
|
If unsure, say N.
|
|
|
|
config HVC_DRIVER
|
|
bool
|
|
help
|
|
Generic "hypervisor virtual console" infrastructure for various
|
|
hypervisors (pSeries, iSeries, Xen, lguest).
|
|
It will automatically be selected if one of the back-end console drivers
|
|
is selected.
|
|
|
|
config HVC_IRQ
|
|
bool
|
|
|
|
config HVC_CONSOLE
|
|
bool "pSeries Hypervisor Virtual Console support"
|
|
depends on PPC_PSERIES
|
|
select HVC_DRIVER
|
|
select HVC_IRQ
|
|
help
|
|
pSeries machines when partitioned support a hypervisor virtual
|
|
console. This driver allows each pSeries partition to have a console
|
|
which is accessed via the HMC.
|
|
|
|
config HVC_ISERIES
|
|
bool "iSeries Hypervisor Virtual Console support"
|
|
depends on PPC_ISERIES
|
|
default y
|
|
select HVC_DRIVER
|
|
select HVC_IRQ
|
|
select VIOPATH
|
|
help
|
|
iSeries machines support a hypervisor virtual console.
|
|
|
|
config HVC_RTAS
|
|
bool "IBM RTAS Console support"
|
|
depends on PPC_RTAS
|
|
select HVC_DRIVER
|
|
help
|
|
IBM Console device driver which makes use of RTAS
|
|
|
|
config HVC_BEAT
|
|
bool "Toshiba's Beat Hypervisor Console support"
|
|
depends on PPC_CELLEB
|
|
select HVC_DRIVER
|
|
help
|
|
Toshiba's Cell Reference Set Beat Console device driver
|
|
|
|
config HVC_IUCV
|
|
bool "z/VM IUCV Hypervisor console support (VM only)"
|
|
depends on S390
|
|
select HVC_DRIVER
|
|
select IUCV
|
|
default y
|
|
help
|
|
This driver provides a Hypervisor console (HVC) back-end to access
|
|
a Linux (console) terminal via a z/VM IUCV communication path.
|
|
|
|
config HVC_XEN
|
|
bool "Xen Hypervisor Console support"
|
|
depends on XEN
|
|
select HVC_DRIVER
|
|
select HVC_IRQ
|
|
default y
|
|
help
|
|
Xen virtual console device driver
|
|
|
|
config HVC_UDBG
|
|
bool "udbg based fake hypervisor console"
|
|
depends on PPC && EXPERIMENTAL
|
|
select HVC_DRIVER
|
|
default n
|
|
|
|
config VIRTIO_CONSOLE
|
|
tristate "Virtio console"
|
|
depends on VIRTIO
|
|
select HVC_DRIVER
|
|
help
|
|
Virtio console for use with lguest and other hypervisors.
|
|
|
|
|
|
config HVCS
|
|
tristate "IBM Hypervisor Virtual Console Server support"
|
|
depends on PPC_PSERIES
|
|
help
|
|
Partitionable IBM Power5 ppc64 machines allow hosting of
|
|
firmware virtual consoles from one Linux partition by
|
|
another Linux partition. This driver allows console data
|
|
from Linux partitions to be accessed through TTY device
|
|
interfaces in the device tree of a Linux partition running
|
|
this driver.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called hvcs. Additionally, this module
|
|
will depend on arch specific APIs exported from hvcserver.ko
|
|
which will also be compiled when this driver is built as a
|
|
module.
|
|
|
|
config IBM_BSR
|
|
tristate "IBM POWER Barrier Synchronization Register support"
|
|
depends on PPC_PSERIES
|
|
help
|
|
This devices exposes a hardware mechanism for fast synchronization
|
|
of threads across a large system which avoids bouncing a cacheline
|
|
between several cores on a system
|
|
|
|
source "drivers/char/ipmi/Kconfig"
|
|
|
|
config DS1620
|
|
tristate "NetWinder thermometer support"
|
|
depends on ARCH_NETWINDER
|
|
help
|
|
Say Y here to include support for the thermal management hardware
|
|
found in the NetWinder. This driver allows the user to control the
|
|
temperature set points and to read the current temperature.
|
|
|
|
It is also possible to say M here to build it as a module (ds1620)
|
|
It is recommended to be used on a NetWinder, but it is not a
|
|
necessity.
|
|
|
|
config NWBUTTON
|
|
tristate "NetWinder Button"
|
|
depends on ARCH_NETWINDER
|
|
---help---
|
|
If you say Y here and create a character device node /dev/nwbutton
|
|
with major and minor numbers 10 and 158 ("man mknod"), then every
|
|
time the orange button is pressed a number of times, the number of
|
|
times the button was pressed will be written to that device.
|
|
|
|
This is most useful for applications, as yet unwritten, which
|
|
perform actions based on how many times the button is pressed in a
|
|
row.
|
|
|
|
Do not hold the button down for too long, as the driver does not
|
|
alter the behaviour of the hardware reset circuitry attached to the
|
|
button; it will still execute a hard reset if the button is held
|
|
down for longer than approximately five seconds.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called nwbutton.
|
|
|
|
Most people will answer Y to this question and "Reboot Using Button"
|
|
below to be able to initiate a system shutdown from the button.
|
|
|
|
config NWBUTTON_REBOOT
|
|
bool "Reboot Using Button"
|
|
depends on NWBUTTON
|
|
help
|
|
If you say Y here, then you will be able to initiate a system
|
|
shutdown and reboot by pressing the orange button a number of times.
|
|
The number of presses to initiate the shutdown is two by default,
|
|
but this can be altered by modifying the value of NUM_PRESSES_REBOOT
|
|
in nwbutton.h and recompiling the driver or, if you compile the
|
|
driver as a module, you can specify the number of presses at load
|
|
time with "insmod button reboot_count=<something>".
|
|
|
|
config NWFLASH
|
|
tristate "NetWinder flash support"
|
|
depends on ARCH_NETWINDER
|
|
---help---
|
|
If you say Y here and create a character device /dev/flash with
|
|
major 10 and minor 160 you can manipulate the flash ROM containing
|
|
the NetWinder firmware. Be careful as accidentally overwriting the
|
|
flash contents can render your computer unbootable. On no account
|
|
allow random users access to this device. :-)
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called nwflash.
|
|
|
|
If you're not sure, say N.
|
|
|
|
source "drivers/char/hw_random/Kconfig"
|
|
|
|
config NVRAM
|
|
tristate "/dev/nvram support"
|
|
depends on ATARI || X86 || (ARM && RTC_DRV_CMOS) || GENERIC_NVRAM
|
|
---help---
|
|
If you say Y here and create a character special file /dev/nvram
|
|
with major number 10 and minor number 144 using mknod ("man mknod"),
|
|
you get read and write access to the extra bytes of non-volatile
|
|
memory in the real time clock (RTC), which is contained in every PC
|
|
and most Ataris. The actual number of bytes varies, depending on the
|
|
nvram in the system, but is usually 114 (128-14 for the RTC).
|
|
|
|
This memory is conventionally called "CMOS RAM" on PCs and "NVRAM"
|
|
on Ataris. /dev/nvram may be used to view settings there, or to
|
|
change them (with some utility). It could also be used to frequently
|
|
save a few bits of very important data that may not be lost over
|
|
power-off and for which writing to disk is too insecure. Note
|
|
however that most NVRAM space in a PC belongs to the BIOS and you
|
|
should NEVER idly tamper with it. See Ralf Brown's interrupt list
|
|
for a guide to the use of CMOS bytes by your BIOS.
|
|
|
|
On Atari machines, /dev/nvram is always configured and does not need
|
|
to be selected.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called nvram.
|
|
|
|
#
|
|
# These legacy RTC drivers just cause too many conflicts with the generic
|
|
# RTC framework ... let's not even try to coexist any more.
|
|
#
|
|
if RTC_LIB=n
|
|
|
|
config RTC
|
|
tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
|
|
depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV \
|
|
&& !ARM && !SUPERH && !S390 && !AVR32 && !BLACKFIN
|
|
---help---
|
|
If you say Y here and create a character special file /dev/rtc with
|
|
major number 10 and minor number 135 using mknod ("man mknod"), you
|
|
will get access to the real time clock (or hardware clock) built
|
|
into your computer.
|
|
|
|
Every PC has such a clock built in. It can be used to generate
|
|
signals from as low as 1Hz up to 8192Hz, and can also be used
|
|
as a 24 hour alarm. It reports status information via the file
|
|
/proc/driver/rtc and its behaviour is set by various ioctls on
|
|
/dev/rtc.
|
|
|
|
If you run Linux on a multiprocessor machine and said Y to
|
|
"Symmetric Multi Processing" above, you should say Y here to read
|
|
and set the RTC in an SMP compatible fashion.
|
|
|
|
If you think you have a use for such a device (such as periodic data
|
|
sampling), then say Y here, and read <file:Documentation/rtc.txt>
|
|
for details.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called rtc.
|
|
|
|
config JS_RTC
|
|
tristate "Enhanced Real Time Clock Support"
|
|
depends on SPARC32 && PCI
|
|
---help---
|
|
If you say Y here and create a character special file /dev/rtc with
|
|
major number 10 and minor number 135 using mknod ("man mknod"), you
|
|
will get access to the real time clock (or hardware clock) built
|
|
into your computer.
|
|
|
|
Every PC has such a clock built in. It can be used to generate
|
|
signals from as low as 1Hz up to 8192Hz, and can also be used
|
|
as a 24 hour alarm. It reports status information via the file
|
|
/proc/driver/rtc and its behaviour is set by various ioctls on
|
|
/dev/rtc.
|
|
|
|
If you think you have a use for such a device (such as periodic data
|
|
sampling), then say Y here, and read <file:Documentation/rtc.txt>
|
|
for details.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called js-rtc.
|
|
|
|
config GEN_RTC
|
|
tristate "Generic /dev/rtc emulation"
|
|
depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH && !AVR32 && !BLACKFIN
|
|
---help---
|
|
If you say Y here and create a character special file /dev/rtc with
|
|
major number 10 and minor number 135 using mknod ("man mknod"), you
|
|
will get access to the real time clock (or hardware clock) built
|
|
into your computer.
|
|
|
|
It reports status information via the file /proc/driver/rtc and its
|
|
behaviour is set by various ioctls on /dev/rtc. If you enable the
|
|
"extended RTC operation" below it will also provide an emulation
|
|
for RTC_UIE which is required by some programs and may improve
|
|
precision in some cases.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called genrtc.
|
|
|
|
config GEN_RTC_X
|
|
bool "Extended RTC operation"
|
|
depends on GEN_RTC
|
|
help
|
|
Provides an emulation for RTC_UIE which is required by some programs
|
|
and may improve precision of the generic RTC support in some cases.
|
|
|
|
config EFI_RTC
|
|
bool "EFI Real Time Clock Services"
|
|
depends on IA64
|
|
|
|
config DS1302
|
|
tristate "DS1302 RTC support"
|
|
depends on M32R && (PLAT_M32700UT || PLAT_OPSPUT)
|
|
help
|
|
If you say Y here and create a character special file /dev/rtc with
|
|
major number 121 and minor number 0 using mknod ("man mknod"), you
|
|
will get access to the real time clock (or hardware clock) built
|
|
into your computer.
|
|
|
|
endif # RTC_LIB
|
|
|
|
config DTLK
|
|
tristate "Double Talk PC internal speech card support"
|
|
depends on ISA
|
|
help
|
|
This driver is for the DoubleTalk PC, a speech synthesizer
|
|
manufactured by RC Systems (<http://www.rcsys.com/>). It is also
|
|
called the `internal DoubleTalk'.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called dtlk.
|
|
|
|
config XILINX_HWICAP
|
|
tristate "Xilinx HWICAP Support"
|
|
depends on XILINX_VIRTEX || MICROBLAZE
|
|
help
|
|
This option enables support for Xilinx Internal Configuration
|
|
Access Port (ICAP) driver. The ICAP is used on Xilinx Virtex
|
|
FPGA platforms to partially reconfigure the FPGA at runtime.
|
|
|
|
If unsure, say N.
|
|
|
|
config R3964
|
|
tristate "Siemens R3964 line discipline"
|
|
---help---
|
|
This driver allows synchronous communication with devices using the
|
|
Siemens R3964 packet protocol. Unless you are dealing with special
|
|
hardware like PLCs, you are unlikely to need this.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called n_r3964.
|
|
|
|
If unsure, say N.
|
|
|
|
config APPLICOM
|
|
tristate "Applicom intelligent fieldbus card support"
|
|
depends on PCI
|
|
---help---
|
|
This driver provides the kernel-side support for the intelligent
|
|
fieldbus cards made by Applicom International. More information
|
|
about these cards can be found on the WWW at the address
|
|
<http://www.applicom-int.com/>, or by email from David Woodhouse
|
|
<dwmw2@infradead.org>.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called applicom.
|
|
|
|
If unsure, say N.
|
|
|
|
config SONYPI
|
|
tristate "Sony Vaio Programmable I/O Control Device support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && X86 && PCI && INPUT && !64BIT
|
|
---help---
|
|
This driver enables access to the Sony Programmable I/O Control
|
|
Device which can be found in many (all ?) Sony Vaio laptops.
|
|
|
|
If you have one of those laptops, read
|
|
<file:Documentation/laptops/sonypi.txt>, and say Y or M here.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called sonypi.
|
|
|
|
config GPIO_TB0219
|
|
tristate "TANBAC TB0219 GPIO support"
|
|
depends on TANBAC_TB022X
|
|
select GPIO_VR41XX
|
|
|
|
source "drivers/char/pcmcia/Kconfig"
|
|
|
|
config MWAVE
|
|
tristate "ACP Modem (Mwave) support"
|
|
depends on X86
|
|
select SERIAL_8250
|
|
---help---
|
|
The ACP modem (Mwave) for Linux is a WinModem. It is composed of a
|
|
kernel driver and a user level application. Together these components
|
|
support direct attachment to public switched telephone networks (PSTNs)
|
|
and support selected world wide countries.
|
|
|
|
This version of the ACP Modem driver supports the IBM Thinkpad 600E,
|
|
600, and 770 that include on board ACP modem hardware.
|
|
|
|
The modem also supports the standard communications port interface
|
|
(ttySx) and is compatible with the Hayes AT Command Set.
|
|
|
|
The user level application needed to use this driver can be found at
|
|
the IBM Linux Technology Center (LTC) web site:
|
|
<http://www.ibm.com/linux/ltc/>.
|
|
|
|
If you own one of the above IBM Thinkpads which has the Mwave chipset
|
|
in it, say Y.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called mwave.
|
|
|
|
config SCx200_GPIO
|
|
tristate "NatSemi SCx200 GPIO Support"
|
|
depends on SCx200
|
|
select NSC_GPIO
|
|
help
|
|
Give userspace access to the GPIO pins on the National
|
|
Semiconductor SCx200 processors.
|
|
|
|
If compiled as a module, it will be called scx200_gpio.
|
|
|
|
config PC8736x_GPIO
|
|
tristate "NatSemi PC8736x GPIO Support"
|
|
depends on X86
|
|
default SCx200_GPIO # mostly N
|
|
select NSC_GPIO # needed for support routines
|
|
help
|
|
Give userspace access to the GPIO pins on the National
|
|
Semiconductor PC-8736x (x=[03456]) SuperIO chip. The chip
|
|
has multiple functional units, inc several managed by
|
|
hwmon/pc87360 driver. Tested with PC-87366
|
|
|
|
If compiled as a module, it will be called pc8736x_gpio.
|
|
|
|
config NSC_GPIO
|
|
tristate "NatSemi Base GPIO Support"
|
|
depends on X86_32
|
|
# selected by SCx200_GPIO and PC8736x_GPIO
|
|
# what about 2 selectors differing: m != y
|
|
help
|
|
Common support used (and needed) by scx200_gpio and
|
|
pc8736x_gpio drivers. If those drivers are built as
|
|
modules, this one will be too, named nsc_gpio
|
|
|
|
config CS5535_GPIO
|
|
tristate "AMD CS5535/CS5536 GPIO (Geode Companion Device)"
|
|
depends on X86_32
|
|
help
|
|
Give userspace access to the GPIO pins on the AMD CS5535 and
|
|
CS5536 Geode companion devices.
|
|
|
|
If compiled as a module, it will be called cs5535_gpio.
|
|
|
|
config RAW_DRIVER
|
|
tristate "RAW driver (/dev/raw/rawN)"
|
|
depends on BLOCK
|
|
help
|
|
The raw driver permits block devices to be bound to /dev/raw/rawN.
|
|
Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O.
|
|
See the raw(8) manpage for more details.
|
|
|
|
Applications should preferably open the device (eg /dev/hda1)
|
|
with the O_DIRECT flag.
|
|
|
|
config MAX_RAW_DEVS
|
|
int "Maximum number of RAW devices to support (1-8192)"
|
|
depends on RAW_DRIVER
|
|
default "256"
|
|
help
|
|
The maximum number of RAW devices that are supported.
|
|
Default is 256. Increase this number in case you need lots of
|
|
raw devices.
|
|
|
|
config HPET
|
|
bool "HPET - High Precision Event Timer" if (X86 || IA64)
|
|
default n
|
|
depends on ACPI
|
|
help
|
|
If you say Y here, you will have a miscdevice named "/dev/hpet/". Each
|
|
open selects one of the timers supported by the HPET. The timers are
|
|
non-periodic and/or periodic.
|
|
|
|
config HPET_MMAP
|
|
bool "Allow mmap of HPET"
|
|
default y
|
|
depends on HPET
|
|
help
|
|
If you say Y here, user applications will be able to mmap
|
|
the HPET registers.
|
|
|
|
In some hardware implementations, the page containing HPET
|
|
registers may also contain other things that shouldn't be
|
|
exposed to the user. If this applies to your hardware,
|
|
say N here.
|
|
|
|
config HANGCHECK_TIMER
|
|
tristate "Hangcheck timer"
|
|
depends on X86 || IA64 || PPC64 || S390
|
|
help
|
|
The hangcheck-timer module detects when the system has gone
|
|
out to lunch past a certain margin. It can reboot the system
|
|
or merely print a warning.
|
|
|
|
config MMTIMER
|
|
tristate "MMTIMER Memory mapped RTC for SGI Altix"
|
|
depends on IA64_GENERIC || IA64_SGI_SN2
|
|
default y
|
|
help
|
|
The mmtimer device allows direct userspace access to the
|
|
Altix system timer.
|
|
|
|
config UV_MMTIMER
|
|
tristate "UV_MMTIMER Memory mapped RTC for SGI UV"
|
|
depends on X86_UV
|
|
default m
|
|
help
|
|
The uv_mmtimer device allows direct userspace access to the
|
|
UV system timer.
|
|
|
|
source "drivers/char/tpm/Kconfig"
|
|
|
|
config TELCLOCK
|
|
tristate "Telecom clock driver for ATCA SBC"
|
|
depends on EXPERIMENTAL && X86
|
|
default n
|
|
help
|
|
The telecom clock device is specific to the MPCBL0010 and MPCBL0050
|
|
ATCA computers and allows direct userspace access to the
|
|
configuration of the telecom clock configuration settings. This
|
|
device is used for hardware synchronization across the ATCA backplane
|
|
fabric. Upon loading, the driver exports a sysfs directory,
|
|
/sys/devices/platform/telco_clock, with a number of files for
|
|
controlling the behavior of this hardware.
|
|
|
|
config DEVPORT
|
|
bool
|
|
depends on !M68K
|
|
depends on ISA || PCI
|
|
default y
|
|
|
|
config DCC_TTY
|
|
tristate "DCC tty driver"
|
|
depends on ARM
|
|
|
|
source "drivers/s390/char/Kconfig"
|
|
|
|
endmenu
|
|
|