Re: UVC with continuous video buffers.

2011-11-23 Thread Laurent Pinchart
Hi Javier, On Thursday 17 November 2011 11:55:28 javier Martin wrote: > On 4 November 2011 11:41, Laurent Pinchart wrote: > > On Wednesday 02 November 2011 17:33:16 javier Martin wrote: > >> On 2 November 2011 17:12, Devin Heitmueller wrote: > >> > I've actually got a very similar issue and have b

Re: UVC with continuous video buffers.

2011-11-17 Thread javier Martin
On 4 November 2011 11:41, Laurent Pinchart wrote: > Hi Javier, > > On Wednesday 02 November 2011 17:33:16 javier Martin wrote: >> On 2 November 2011 17:12, Devin Heitmueller wrote: >> > I've actually got a very similar issue and have been looking into it >> > (an em28xx device on OMAP requiring co

Re: UVC with continuous video buffers.

2011-11-04 Thread Laurent Pinchart
Hi Hans, On Friday 04 November 2011 11:58:26 Hans Verkuil wrote: > On Friday 04 November 2011 11:41:28 Laurent Pinchart wrote: > > On Wednesday 02 November 2011 17:33:16 javier Martin wrote: > > > On 2 November 2011 17:12, Devin Heitmueller wrote: > > > > I've actually got a very similar issue and

Re: UVC with continuous video buffers.

2011-11-04 Thread Hans Verkuil
On Friday 04 November 2011 11:41:28 Laurent Pinchart wrote: > Hi Javier, > > On Wednesday 02 November 2011 17:33:16 javier Martin wrote: > > On 2 November 2011 17:12, Devin Heitmueller wrote: > > > I've actually got a very similar issue and have been looking into it > > > (an em28xx device on OMAP

Re: UVC with continuous video buffers.

2011-11-04 Thread Laurent Pinchart
Hi Javier, On Wednesday 02 November 2011 17:33:16 javier Martin wrote: > On 2 November 2011 17:12, Devin Heitmueller wrote: > > I've actually got a very similar issue and have been looking into it > > (an em28xx device on OMAP requiring contiguous physical memory for the > > hardware H.264 encoder

Re: UVC with continuous video buffers.

2011-11-02 Thread javier Martin
Hi Devin, thank you for your answer. On 2 November 2011 17:12, Devin Heitmueller wrote: > I've actually got a very similar issue and have been looking into it > (an em28xx device on OMAP requiring contiguous physical memory for the > hardware H.264 encoder).  One thing you may definitely want to

Re: UVC with continuous video buffers.

2011-11-02 Thread Devin Heitmueller
On Wed, Nov 2, 2011 at 11:49 AM, javier Martin wrote: > Hi, > we have a system with a UVC camera connected to USB to acquire video > images and a hardware processor which needs continuous memory buffers > to process them. > > I've been looking at the current version of UVC drivers and it seems > i

UVC with continuous video buffers.

2011-11-02 Thread javier Martin
Hi, we have a system with a UVC camera connected to USB to acquire video images and a hardware processor which needs continuous memory buffers to process them. I've been looking at the current version of UVC drivers and it seems it allocates buffers using vmalloc_32() call: http://lxr.linux.no/#li