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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

  reply	other threads:[~2016-04-29  7:15 UTC|newest]

Thread overview: 19+ 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
2016-04-29  7:15 ` Pavel Machek [this message]
2016-04-29  7:31   ` v4l subdevs without big device was " Hans Verkuil
2016-04-29  7:56     ` Sakari Ailus
2016-04-29  9:50       ` Pavel Machek
2016-04-29 10:59         ` Sakari Ailus
2016-04-29 11:05           ` Pali Rohár
2016-04-29 11:23             ` Sakari Ailus
2016-04-29 14:06           ` 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 22:13     ` camera application for testing (was Re: v4l subdevs without big device) Pavel Machek
2016-04-29 22:20       ` Pali Rohár
2016-04-29 22:47         ` Ivaylo Dimitrov
2016-05-01 14:08       ` Sakari Ailus
2016-05-01 19:21         ` Pavel Machek
2016-06-21 22:32         ` Pavel Machek
2016-06-21 23:59         ` Laurent Pinchart
2016-06-22 11:52           ` Pavel Machek

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