; davinci-linux-open-source@linux.davincidsp.com
Subject: Re: Need help with V4L2 USERPTR method
I am not getting any error after hardcoding buffer size to 884736, and able to
dequeue and enque buffer successfully, but this buffer does not contain any
frame data.
On Fri, Nov 28, 2008 at 5:10 PM
ED] On Behalf Of
> Andrea Gasparini
> Sent: Friday, November 28, 2008 4:55 PM
> To: davinci-linux-open-source@linux.davincidsp.com
> Cc: Mr. V R
> Subject: Re: Need help with V4L2 USERPTR method
>
> Hi,
>
> Mr. V R spiffera, alle Friday 28 November 2008 circa:
> > 1. T
Hi Andrea,
Thanks for reply.
1) DVSDK 1.30 kernel does not provide CONFIG_CAPTURE_DAVINCIHD ( I could not
find in autoconfig.h or KConfig anywhere, but Makefile mentions about it).
Do I have to apply patch to enable support this? (I tried tweak it manually
but looks like I have to disable part of
Behalf Of Andrea Gasparini
Sent: Friday, November 28, 2008 4:55 PM
To: davinci-linux-open-source@linux.davincidsp.com
Cc: Mr. V R
Subject: Re: Need help with V4L2 USERPTR method
Hi,
Mr. V R spiffera, alle Friday 28 November 2008 circa:
> 1. The sample code without modification in buffer size wo
Hi,
Mr. V R spiffera, alle Friday 28 November 2008 circa:
> 1. The sample code without modification in buffer size works well with
> MMAP but fails in USERPTR
> 2. If we provide buffer more then or equal to 884736, capture is
> possible with USERPTR, but driver does not copy frame in the buffer.
