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[media] v4l: subdev: Generic ioctl support

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Instead of returning an error when receiving an ioctl call with an
unsupported command, forward the call to the subdev core::ioctl handler.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2010-02-26 12:23:10 -03:00 committed by Mauro Carvalho Chehab
parent cfe2cde6d3
commit c30b46e58b
2 changed files with 6 additions and 1 deletions
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5
Documentation/video4linux/v4l2-framework.txt
View File

@ -405,6 +405,11 @@ VIDIOC_UNSUBSCRIBE_EVENT
To properly support events, the poll() file operation is also
implemented.
Private ioctls
All ioctls not in the above list are passed directly to the sub-device
driver through the core::ioctl operation.
I2C sub-device drivers
----------------------

2
drivers/media/video/v4l2-subdev.c
View File

@ -276,7 +276,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
}
#endif
default:
return -ENOIOCTLCMD;
return v4l2_subdev_call(sd, core, ioctl, cmd, arg);
}
return 0;