On 07/10/2015 03:11 PM, Philipp Zabel wrote:
> This is useful to subscribe to HDMI hotplug events via the
> V4L2_CID_DV_RX_POWER_PRESENT control.
>
> Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
> ---
> drivers/media/i2c/tc358743.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
> index 4a889d4..91fffa8 100644
> --- a/drivers/media/i2c/tc358743.c
> +++ b/drivers/media/i2c/tc358743.c
> @@ -40,6 +40,7 @@
> #include <media/v4l2-dv-timings.h>
> #include <media/v4l2-device.h>
> #include <media/v4l2-ctrls.h>
> +#include <media/v4l2-event.h>
> #include <media/v4l2-of.h>
> #include <media/tc358743.h>
>
> @@ -1604,6 +1605,8 @@ static const struct v4l2_subdev_core_ops
> tc358743_core_ops = {
> .s_register = tc358743_s_register,
> #endif
> .interrupt_service_routine = tc358743_isr,
> + .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
Ah, they are set here.
But note that v4l2_ctrl_subdev_subscribe_event is not enough, since this driver
also issues the V4L2_EVENT_SOURCE_CHANGE event.
See this patch on how to do that:
http://git.linuxtv.org/cgit.cgi/hverkuil/media_tree.git/commit/?h=for-v4.3a&id=85c9b0b83795dac3d27043619a727af5c7313fe7
Note: requires the new v4l2_subdev_notify_event function that's not yet
merged (just posted the pull request for that).
Regards,
Hans
> + .unsubscribe_event = v4l2_event_subdev_unsubscribe,
> };
>
> static const struct v4l2_subdev_video_ops tc358743_video_ops = {
>
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