android/android_bootable_recovery
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

minui: events: only open input devices with EV_KEY and/or EV_REL

Browse Source 
Change-Id: I8283d7aaa0f66d488f462cd108350cc49657a745
Signed-off-by: Dima Zavin <dima@android.com>
This commit is contained in:
Dima Zavin 2011-09-02 14:24:43 -07:00
parent 365836736c
commit 88e0899617
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
minui/events.c
View File

@ -27,6 +27,8 @@
#define MAX_DEVICES 16
#define MAX_MISC_FDS 16
#define test_bit(bit, array) ((array)[(bit)/8] & (1<<((bit)%8)))
struct fd_info {
ev_callback cb;
void *data;
@ -48,11 +50,26 @@ int ev_init(ev_callback input_cb, void *data)
dir = opendir("/dev/input");
if(dir != 0) {
while((de = readdir(dir))) {
uint8_t ev_bits[(EV_MAX + 1) / 8];
// fprintf(stderr,"/dev/input/%s\n", de->d_name);
if(strncmp(de->d_name,"event",5)) continue;
fd = openat(dirfd(dir), de->d_name, O_RDONLY);
if(fd < 0) continue;
/* read the evbits of the input device */
if (ioctl(fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) < 0) {
close(fd);
continue;
}
/* TODO: add ability to specify event masks. For now, just assume
* that only EV_KEY and EV_REL event types are ever needed. */
if (!test_bit(EV_KEY, ev_bits) && !test_bit(EV_REL, ev_bits)) {
close(fd);
continue;
}
ev_fds[ev_count].fd = fd;
ev_fds[ev_count].events = POLLIN;
ev_fdinfo[ev_count].cb = input_cb;