From: Pavel Machek <pavel@ucw.cz>
To: pali.rohar@gmail.com, sre@kernel.org,
kernel list <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org,
aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com,
patrikbachan@gmail.com, serge@hallyn.com, sakari.ailus@iki.fi,
tuukkat76@gmail.com
Cc: mchehab@osg.samsung.com, linux-media@vger.kernel.org
Subject: v4l subdevs without big device was Re: drivers/media/i2c/adp1653.c: does not show as /dev/video* or v4l-subdev*
Date: Fri, 29 Apr 2016 09:15:26 +0200 [thread overview]
Message-ID: <20160429071525.GA4823@amd> (raw)
In-Reply-To: <20160428084546.GA9957@amd>
Hi!
> On n900, probe finishes ok (verified by adding printks), and the
> device shows up in /sys, but I don't get /dev/video* or
> /dev/v4l-subdev*.
>
> Other drivers (back and front camera) load ok, and actually work. Any
> idea what could be wrong?
Ok, so I guess I realized what is the problem:
adp1653 registers itself as a subdev, but there's no device that
register it as its part.
(ad5820 driver seems to have the same problem).
Is there example "dummy" device I could use, for sole purpose of
having these devices appear in /dev? They are on i2c, so both can work
on their own.
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
WARNING: multiple messages have this Message-ID (diff)
From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: v4l subdevs without big device was Re: drivers/media/i2c/adp1653.c: does not show as /dev/video* or v4l-subdev*
Date: Fri, 29 Apr 2016 09:15:26 +0200 [thread overview]
Message-ID: <20160429071525.GA4823@amd> (raw)
In-Reply-To: <20160428084546.GA9957@amd>
Hi!
> On n900, probe finishes ok (verified by adding printks), and the
> device shows up in /sys, but I don't get /dev/video* or
> /dev/v4l-subdev*.
>
> Other drivers (back and front camera) load ok, and actually work. Any
> idea what could be wrong?
Ok, so I guess I realized what is the problem:
adp1653 registers itself as a subdev, but there's no device that
register it as its part.
(ad5820 driver seems to have the same problem).
Is there example "dummy" device I could use, for sole purpose of
having these devices appear in /dev? They are on i2c, so both can work
on their own.
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2016-04-29 7:15 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-28 8:45 drivers/media/i2c/adp1653.c: does not show as /dev/video* or v4l-subdev* Pavel Machek
2016-04-28 8:45 ` Pavel Machek
2016-04-28 8:45 ` Pavel Machek
2016-04-29 7:15 ` Pavel Machek [this message]
2016-04-29 7:15 ` v4l subdevs without big device was " Pavel Machek
2016-04-29 7:31 ` Hans Verkuil
2016-04-29 7:31 ` Hans Verkuil
2016-04-29 7:56 ` Sakari Ailus
2016-04-29 7:56 ` Sakari Ailus
2016-04-29 9:50 ` Pavel Machek
2016-04-29 9:50 ` Pavel Machek
2016-04-29 9:50 ` Pavel Machek
2016-04-29 10:59 ` Sakari Ailus
2016-04-29 10:59 ` Sakari Ailus
2016-04-29 11:05 ` Pali Rohár
2016-04-29 11:05 ` Pali Rohár
2016-04-29 11:23 ` Sakari Ailus
2016-04-29 11:23 ` Sakari Ailus
2016-04-29 14:06 ` Pavel Machek
2016-04-29 14:06 ` Pavel Machek
2016-04-29 10:15 ` Pavel Machek
2016-04-29 10:15 ` Pavel Machek
2016-04-29 21:30 ` [pre-rfc] focus and flash for Nokia N900 (was Re: v4l subdevs without big device was Re: drivers/media/i2c/adp1653.c: does not show as /dev/video* or v4l-subdev*) Pavel Machek
2016-04-29 21:30 ` Pavel Machek
2016-04-29 22:13 ` camera application for testing (was Re: v4l subdevs without big device) Pavel Machek
2016-04-29 22:13 ` Pavel Machek
2016-04-29 22:20 ` Pali Rohár
2016-04-29 22:20 ` Pali Rohár
2016-04-29 22:47 ` Ivaylo Dimitrov
2016-04-29 22:47 ` Ivaylo Dimitrov
2016-05-01 14:08 ` Sakari Ailus
2016-05-01 14:08 ` Sakari Ailus
2016-05-01 19:21 ` Pavel Machek
2016-05-01 19:21 ` Pavel Machek
2016-06-21 22:32 ` Pavel Machek
2016-06-21 22:32 ` Pavel Machek
2016-06-21 23:59 ` Laurent Pinchart
2016-06-21 23:59 ` Laurent Pinchart
2016-06-22 11:52 ` Pavel Machek
2016-06-22 11:52 ` Pavel Machek
2016-06-22 11:52 ` Pavel Machek
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