videobuf

I'm  working on building a v4l2 driver for an FPGA module on a Xilinx
Virtex4 PPC.

Question:
Why does the v4l2 videobuf *depend* on PCI?




Rob.

 

On 10/30/07, Robert Woodworth [off-list ref] wrote:

I'm  working on building a v4l2 driver for an FPGA module on a Xilinx
Virtex4 PPC.

Question:
Why does the v4l2 videobuf *depend* on PCI?

You could try dropping the dependency from Kconfig and see what breaks
when you compile the core v4l2 stuff.

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195

On Tuesday 30 October 2007 16:28, Robert Woodworth wrote:

I'm  working on building a v4l2 driver for an FPGA module on a Xilinx
Virtex4 PPC.

Question:
Why does the v4l2 videobuf *depend* on PCI?

Historical reasons I guess. The videobuf module has been designed for PCI 
hardware (bttv if I'm not mistaken). Now that other, non-PCI devices would 
benefit from videobuf, PCI-specific support is being moved to a separate 
module.

Search the video4linux mailing list archive for discussions about videobuf 
cleanup. You can get the latest source tree at www.linuxtv.org.

Best regards,

-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussée de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75

That does work and nothing seams to be broken just yet.
I also removed the dependency from the vivi (virtual video) module and
that modules works fine.




However, I tried to enable PCI support and that failed with undefined
PCI addresses.  (duh. I have no PCI on the board)



RJW.




On Tue, 2007-10-30 at 10:19 -0600, Grant Likely wrote:

On 10/30/07, Robert Woodworth [off-list ref] wrote:

quoted

I'm  working on building a v4l2 driver for an FPGA module on a Xilinx
Virtex4 PPC.

Question:
Why does the v4l2 videobuf *depend* on PCI?

You could try dropping the dependency from Kconfig and see what breaks
when you compile the core v4l2 stuff.

Cheers,
g.