[V4L] Re: v4l2 + select() + read()

[Gerd Knorr]

> > >  One problem is that as things stand for some drivers read() is the only
> > >  supported interface so needs to be as efficient as possible.
> >
> > Do such drivers exist?

>  I'm going by memory from old stuff on the list here, so I may be
>  mistaken, but I thought that bttv was somewhat the exception in terms
>  of supporting mmap, or am I just thinking of DMA? Do the USB cams
>  support mmap?

At least two usb drivers support mmap: ov511 and mod_quickcam.  Didn't
had any other usb hardware until now, so I'm not sure about others...

  Gerd

-- 
Gerd Knorr <[EMAIL PROTECTED]>  --  SuSE Labs, Au�enstelle Berlin



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