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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-05-29 13:19:04 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-17 12:45:42 (GMT) |
| commit | 1a2c6866e35058c8808af37659e0f344f7f79381 (patch) | |
| tree | 2f97fe02015826392b780ce5499c294f418272ab /drivers/media/v4l2-core/v4l2-ioctl.c | |
| parent | 0b1ffb535720c1c8a758dfaef926413e11a4bbce (diff) | |
| download | linux-fsl-qoriq-1a2c6866e35058c8808af37659e0f344f7f79381.tar.xz | |
[media] v4l2-ioctl: clarify querystd comment
Improve the querystd comment.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 6774543..19e2988 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1385,10 +1385,10 @@ static int v4l_querystd(const struct v4l2_ioctl_ops *ops, v4l2_std_id *p = arg; /* - * If nothing detected, it should return all supported - * standard. - * Drivers just need to mask the std argument, in order - * to remove the standards that don't apply from the mask. + * If no signal is detected, then the driver should return + * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with + * any standards that do not apply removed. + * * This means that tuners, audio and video decoders can join * their efforts to improve the standards detection. */ |