diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 21c49dc064e2..24fd43322150 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -1109,6 +1109,14 @@ static long __video_do_ioctl(struct file *file, if (!ops->vidioc_querystd) break; + /* + * If nothing detected, it should return all supported + * Drivers just need to mask the std argument, in order + * to remove the standards that don't apply from the mask. + * This means that tuners, audio and video decoders can join + * their efforts to improve the standards detection + */ + *p = vfd->tvnorms; ret = ops->vidioc_querystd(file, fh, arg); if (!ret) dbgarg(cmd, "detected std=%08Lx\n", |