Re: Using atmel-isi for direct output on framebuffer ?

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Hi Laurent,

Le Fri, 2 Sep 2011 13:42:03 +0200,
Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> a écrit :

> I'm not sure if V4L2_CAP_VIDEO_OVERLAY is a good solution for this.
> This driver type (or rather buffer type) was used on old systems to
> capture directly to the PCI graphics card memory. Nowadays I would
> advice using USERPTR with framebuffer memory.

Could you give a short summary of how the USERPTR mechanism works?

Thanks,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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