From mboxrd@z Thu Jan 1 00:00:00 1970
From: Philipp Zabel
Subject: Re: [PATCH 5/5] [media] tc358743: allow event subscription
Date: Tue, 14 Jul 2015 12:10:09 +0200
Message-ID: <1436868609.3793.25.camel@pengutronix.de>
References: <1436533897-3060-1-git-send-email-p.zabel@pengutronix.de>
<1436533897-3060-5-git-send-email-p.zabel@pengutronix.de>
<55A39BE3.2070905@xs4all.nl>
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Sender: linux-media-owner@vger.kernel.org
To: Hans Verkuil
Cc: Mats Randgaard , linux-media@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de
List-Id: devicetree@vger.kernel.org
Am Montag, den 13.07.2015, 13:07 +0200 schrieb Hans Verkuil:
> 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
> > ---
> > 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
> > #include
> > #include
> > +#include
> > #include
> > #include
> >
> > @@ -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).
Ok, I think I'll split this up and send patch 5 separately, then.
regards
Philipp