iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Input: evdev - signal that device is writable in evdev_poll()

Browse Source 
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2010-07-15 23:28:42 -07:00
parent 4d4bf995ea
commit c18fb1396e
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/input/evdev.c
View File

@ -403,10 +403,15 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait)
{ {
struct evdev_client *client = file->private_data; struct evdev_client *client = file->private_data;
struct evdev *evdev = client->evdev; struct evdev *evdev = client->evdev;
unsigned int mask;
poll_wait(file, &evdev->wait, wait); poll_wait(file, &evdev->wait, wait);
return ((client->head == client->tail) ? 0 : (POLLIN | POLLRDNORM)) |
(evdev->exist ? 0 : (POLLHUP | POLLERR)); mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
if (client->head != client->tail)
mask |= POLLIN | POLLRDNORM;
return mask;
} }
#ifdef CONFIG_COMPAT #ifdef CONFIG_COMPAT