Input: mousedev - signal that device is writable in mousedev_poll()
The Microsoft ImPS/2 mouse protocol being bidirectionnal (sic)
one may have to write in /dev/input/mice; and that works better
if select() does not hang.
Signed-off-by: Julien Moutinho <julm+linux@savines.alpes.fr.eu.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index d7a7a2f..d8f68f7 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -765,10 +765,15 @@
{
struct mousedev_client *client = file->private_data;
struct mousedev *mousedev = client->mousedev;
+ unsigned int mask;
poll_wait(file, &mousedev->wait, wait);
- return ((client->ready || client->buffer) ? (POLLIN | POLLRDNORM) : 0) |
- (mousedev->exist ? 0 : (POLLHUP | POLLERR));
+
+ mask = mousedev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
+ if (client->ready || client->buffer)
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
}
static const struct file_operations mousedev_fops = {