From: Laurent Pinchart Date: Fri, 26 Feb 2010 15:23:10 +0000 (-0300) Subject: [media] v4l: subdev: Generic ioctl support X-Git-Tag: firefly_0821_release~7613^2~1709^2~154 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c30b46e58b31a0fc420049e21117444862fc7cb7;p=firefly-linux-kernel-4.4.55.git [media] v4l: subdev: Generic ioctl support 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 Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 77d96f4e3f50..f2df31b088c6 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -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 ---------------------- diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c index 6e76f734c780..0b8064490676 100644 --- a/drivers/media/video/v4l2-subdev.c +++ b/drivers/media/video/v4l2-subdev.c @@ -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;