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From: Tom <Bassai_Dai@gmx.net>
To: linux-media@vger.kernel.org
Subject: Re: Add private controls to ctrl_handler
Date: Tue, 7 Jan 2014 08:15:58 +0000 (UTC)	[thread overview]
Message-ID: <loom.20140107T091511-641@post.gmane.org> (raw)
In-Reply-To: 52CAC006.7080907@xs4all.nl

Hans Verkuil <hverkuil <at> xs4all.nl> writes:

> 
> Don't use V4L2_CID_PRIVATE_BASE, that doesn't work with the control framework
> (for good but somewhat obscure reasons).
> 
> Instead use (V4L2_CID_USER_BASE | 0x1000) as the base for your private
controls.
> If you want to upstream the code, then you should define a range for the
private
> controls of this driver in v4l2-controls.h. Search for e.g.
V4L2_CID_USER_S2255_BASE
> in that header to see how it is done.
> 
> Regards,
> 
> 	Hans
> 

thanks for your help. It worked for me with "(V4L2_CID_USER_BASE | 0x1000)"
base and the "v4l2_ctrl_new_custom" function.

Regards, Tom


      reply	other threads:[~2014-01-07  8:16 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-06 14:30 Add private controls to ctrl_handler Tom
2014-01-06 14:36 ` Tom
2014-01-06 14:39 ` Hans Verkuil
2014-01-07  8:15   ` Tom [this message]

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