On Wed, May 30, 2001, Ben Bridgwater <[EMAIL PROTECTED]> wrote:
> Gerd Knorr wrote:
>
> > > 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?
Yes, but it's not for efficiency reasons. I originally added it since
the only clients I could find at the time only supported mmap (as well
as only understood RGB).
JE
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