Commit 9b558434 authored by Pawel Osciak's avatar Pawel Osciak Committed by Mauro Carvalho Chehab

V4L/DVB: videobuf: make poll() report proper flags for output video devices

According to the V4L2 specification, poll() should set POLLOUT | POLLWRNORM
flags for output devices after the frame has been displayed.
Signed-off-by: default avatarPawel Osciak <p.osciak@samsung.com>
Reviewed-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent fc7f8fd4
...@@ -1120,8 +1120,18 @@ unsigned int videobuf_poll_stream(struct file *file, ...@@ -1120,8 +1120,18 @@ unsigned int videobuf_poll_stream(struct file *file,
if (0 == rc) { if (0 == rc) {
poll_wait(file, &buf->done, wait); poll_wait(file, &buf->done, wait);
if (buf->state == VIDEOBUF_DONE || if (buf->state == VIDEOBUF_DONE ||
buf->state == VIDEOBUF_ERROR) buf->state == VIDEOBUF_ERROR) {
rc = POLLIN|POLLRDNORM; switch (q->type) {
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
case V4L2_BUF_TYPE_VBI_OUTPUT:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
rc = POLLOUT | POLLWRNORM;
break;
default:
rc = POLLIN | POLLRDNORM;
break;
}
}
} }
mutex_unlock(&q->vb_lock); mutex_unlock(&q->vb_lock);
return rc; return rc;
......
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