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V4L/DVB (11262): bttv: Remove buffer type check from vidioc_g_parm

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The v4l2-ioctl core only allows buffer types for which the corresponding
->vidioc_try_fmt_xxx() methods are defined to be used with
vidioc_(q|dq|query)bufs(), vidioc_reqbufs() and now vidioc_(s|g)_parm.

The driver was only allowing VIDEO_CAPTURE buffers for g_parm, but since
the driver defines ->vidioc_try_fmt_vid_overlay() and
->vidioc_try_fmt_vbi_cap() it will now allow VIDEO_OVERLAY and VBI_CAPTURE
buffers as well.  This should be fine as the driver only fills in the frame
rate field, which is just as valid for video overlay and vbi capture as it
is for video capture.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Trent Piepho 2009-03-28 22:25:35 -03:00 committed by Mauro Carvalho Chehab
parent f911eab66d
commit 601bc29845
1 changed files with 0 additions and 2 deletions
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2
drivers/media/video/bt8xx/bttv-driver.c
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@ -2928,8 +2928,6 @@ static int bttv_g_parm(struct file *file, void *f,
struct bttv_fh *fh = f;
struct bttv *btv = fh->btv;
if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
&parm->parm.capture.timeperframe);
return 0;