Hans,
In the cx23885 driver as part of vidioc_enum_input call, I have a need
to return V4L2_IN_ST_NO_SIGNAL in the status
field as part of struct v4l2_input. Thus, when no signal is detected
by the video decoder it can be signalled to the calling application.
I looks like subdev_core_ops doesn't currently support this, or have I
miss-understood something?
The patch below is a snippet from a larger patch I have which:
1. Adds this support to struct v4l2_subdev_core_ops
2. Adds support to the cx25840 and cx23885 drivers and makes the
feature available.
Do you have any comments or thoughts on the subdev_ops patch below?
Regards,
- Steve
Index: v4l-dvb/include/media/v4l2-subdev.h
===================================================================
--- v4l-dvb.orig/include/media/v4l2-subdev.h 2012-01-03
17:44:24.337826817 -0500
+++ v4l-dvb/include/media/v4l2-subdev.h 2012-01-03 17:44:54.729826263 -0500
@@ -172,6 +172,7 @@
struct v4l2_event_subscription *sub);
int (*unsubscribe_event)(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
+ int (*enum_input)(struct v4l2_subdev *sd, struct v4l2_input *i);
};
--
Steven Toth - Kernel Labs
http://www.kernellabs.com
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