linux-kernel - [RFC 04/10] [media] uvc: enable subscriptions to other events

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Date:   Mon, 13 Mar 2017 16:20:29 -0300
From:   Gustavo Padovan <gustavo@...ovan.org>
To:     linux-media@...r.kernel.org
Cc:     Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        linux-kernel@...r.kernel.org,
        Gustavo Padovan <gustavo.padovan@...labora.com>
Subject: [RFC 04/10] [media] uvc: enable subscriptions to other events

From: Gustavo Padovan <gustavo.padovan@...labora.com>

Call v4l2_ctrl_subscribe_event to subscribe to more events supported by
v4l.

Signed-off-by: Gustavo Padovan <gustavo.padovan@...labora.com>
---
 drivers/media/usb/uvc/uvc_v4l2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 3e7e283..dfa0ccd 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -1240,7 +1240,7 @@ static int uvc_ioctl_subscribe_event(struct v4l2_fh *fh,
 	case V4L2_EVENT_CTRL:
 		return v4l2_event_subscribe(fh, sub, 0, &uvc_ctrl_sub_ev_ops);
 	default:
-		return -EINVAL;
+		return v4l2_ctrl_subscribe_event(fh, sub);
 	}
 }
 
-- 
2.9.3