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Update usb_connected() to support new gadget driver

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Change-Id: Iabe8be5bbfa7d2bf1d13280c8734ff75b62a152f
This commit is contained in:
Benoit Goby 2011-06-24 17:54:19 -07:00
parent 933487868f
commit 7e6067e36c
1 changed files with 5 additions and 4 deletions
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9
ui.c
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@ -592,17 +592,18 @@ void ui_show_text(int visible)
// Return true if USB is connected.
static int usb_connected() {
int fd = open("/sys/class/switch/usb_connected/state", O_RDONLY);
int fd = open("/sys/class/android_usb/android0/state", O_RDONLY);
if (fd < 0) {
printf("failed to open /sys/class/switch/usb_connected/state: %s\n",
printf("failed to open /sys/class/android_usb/android0/state: %s\n",
strerror(errno));
return 0;
}
char buf;
int connected = (read(fd, &buf, 1) == 1) && (buf == '1');
/* USB is connected if android_usb state is CONNECTED or CONFIGURED */
int connected = (read(fd, &buf, 1) == 1) && (buf == 'C');
if (close(fd) < 0) {
printf("failed to close /sys/class/switch/usb_connected/state: %s\n",
printf("failed to close /sys/class/android_usb/android0/state: %s\n",
strerror(errno));
}
return connected;