pwc: Add support for control events

Since the pwc driver already uses v4l2-device, v4l2-fh, and the control
framework, all that is needed is hooking up event subscription.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index 2834e3e..c1ba1a0 100644 (file)
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -1166,4 +1166,6 @@ const struct v4l2_ioctl_ops pwc_ioctl_ops = {
        .vidioc_enum_frameintervals         = pwc_enum_frameintervals,
        .vidioc_g_parm                      = pwc_g_parm,
        .vidioc_s_parm                      = pwc_s_parm,
+       .vidioc_subscribe_event             = v4l2_ctrl_subscribe_event,
+       .vidioc_unsubscribe_event           = v4l2_event_unsubscribe,
 };