From 1a2c6866e35058c8808af37659e0f344f7f79381 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 29 May 2013 10:19:04 -0300 Subject: [PATCH] [media] v4l2-ioctl: clarify querystd comment Improve the querystd comment. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-ioctl.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 67745438e6ff..19e298863e0e 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. */ -- 2.39.5