diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2012-09-07 11:16:03 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-05 03:52:36 +0100 |
| commit | 86ff7f1d4be99080d740fd88495154717cd39e2b (patch) | |
| tree | 465c8fdedf0565a81a91af0205a7ae70274564a3 /drivers | |
| parent | [media] em28xx: add support for control events (diff) | |
| download | linux-86ff7f1d4be99080d740fd88495154717cd39e2b.tar.xz linux-86ff7f1d4be99080d740fd88495154717cd39e2b.zip | |
[media] em28xx: fill in readbuffers and fix incorrect return code
g/s_parm should fill in readbuffers.
For non-webcams s_parm should return -ENOTTY instead of -EINVAL.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-video.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index acdb4340399f..a91a2484bc98 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -972,6 +972,7 @@ static int vidioc_g_parm(struct file *file, void *priv, if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; + p->parm.capture.readbuffers = EM28XX_MIN_BUF; if (dev->board.is_webcam) rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, g_parm, p); @@ -989,11 +990,12 @@ static int vidioc_s_parm(struct file *file, void *priv, struct em28xx *dev = fh->dev; if (!dev->board.is_webcam) - return -EINVAL; + return -ENOTTY; if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; + p->parm.capture.readbuffers = EM28XX_MIN_BUF; return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); } |