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[media] v4l2-ioctl: Add a default value for kernel version

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Most drivers don't increase kernel versions as newer features are added or
bug fixes are solved. So, vidioc_querycap returned value for cap->version is
meaningless. Instead of keeping this situation forever, let's add a default
value matching the current Linux version.

Drivers that want to keep their own version control can still do it, as they
can override the default value for cap->version.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-06-24 13:14:14 -03:00
parent b6dc1bab05
commit ae6db51546
1 changed files with 2 additions and 0 deletions
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2
drivers/media/video/v4l2-ioctl.c
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@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/videodev2.h>
@ -605,6 +606,7 @@ static long __video_do_ioctl(struct file *file,
if (!ops->vidioc_querycap)
break;
cap->version = LINUX_VERSION_CODE;
ret = ops->vidioc_querycap(file, fh, cap);
if (!ret)
dbgarg(cmd, "driver=%s, card=%s, bus=%s, "