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Commit ffa9b9f0 authored by Sylwester Nawrocki's avatar Sylwester Nawrocki Committed by Mauro Carvalho Chehab
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[media] V4L: Add v4l2_ctrl_subdev_log_status() helper function 



This patch adds a v4l2 core helper function that can be used as
the log_status handler for subdevs that only need to log state
of the v4l2 controls owned by the subdev's control handler.

Signed-off-by: default avatarSylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 22fa4279

drivers/media/v4l2-core/v4l2-ctrls.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -2004,6 +2004,13 @@ void v4l2_ctrl_handler_log_status(struct v4l2_ctrl_handler *hdl, 
}

}

EXPORT_SYMBOL(v4l2_ctrl_handler_log_status);

EXPORT_SYMBOL(v4l2_ctrl_handler_log_status);





int v4l2_ctrl_subdev_log_status(struct v4l2_subdev *sd)

{

	v4l2_ctrl_handler_log_status(sd->ctrl_handler, sd->name);

	return 0;

}

EXPORT_SYMBOL(v4l2_ctrl_subdev_log_status);



/* Call s_ctrl for all controls owned by the handler */

/* Call s_ctrl for all controls owned by the handler */

int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl)

int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl)

{

{

include/media/v4l2-ctrls.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -659,4 +659,7 @@ int v4l2_subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl); 
int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,

int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,

				     struct v4l2_event_subscription *sub);

				     struct v4l2_event_subscription *sub);





/* Log all controls owned by subdev's control handler. */

int v4l2_ctrl_subdev_log_status(struct v4l2_subdev *sd);



#endif
 
#endif