From e4cca4edbce693238ba4d75269db082f34da48bb Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 28 May 2012 07:30:28 -0300 Subject: [media] v4l2 spec: document the new v4l2_tuner capabilities Update the spec with the new capabilities and specify new error codes for S_HW_FREQ_SEEK. Signed-off-by: Hans Verkuil Acked-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- .../DocBook/media/v4l/vidioc-s-hw-freq-seek.xml | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml') diff --git a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml index 407dfceb71f0..f4db44d0d95a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml +++ b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml @@ -58,6 +58,9 @@ To do this applications initialize the tuner, call the VIDIOC_S_HW_FREQ_SEEK ioctl with a pointer to this structure. + If an error is returned, then the original frequency will + be restored. + This ioctl is supported if the V4L2_CAP_HW_FREQ_SEEK capability is set. @@ -87,7 +90,10 @@ field and the &v4l2-tuner; index field. __u32 wrap_around - If non-zero, wrap around when at the end of the frequency range, else stop seeking. + If non-zero, wrap around when at the end of the frequency range, else stop seeking. + The &v4l2-tuner; capability field will tell you what the + hardware supports. + __u32 @@ -118,9 +124,15 @@ wrong. - EAGAIN + ENODATA + + The hardware seek found no channels. + + + + EBUSY - The ioctl timed-out. Try again. + Another hardware seek is already in progress. -- cgit v1.2.3