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Re: Porting a linux video (tv card) driver to OSKit



On Tue, Aug 24, 1999 at 03:37:34AM -0600, Alastair Reid wrote:
> 
> > I'm wondering now how hard it would be to port the Linux bttv video grabber
> > driver. I must admit I'm a bit overwhelmed just trying to see how much
> > needs to be done. Somehow I have to compare what the OSKit linux driver
> > encapsulation provides, with what the new driver expects.
> > 
> > Does anybody have an immediate feel for how much work is involved in
> > porting this driver?
> 
> I have no feel for it but I have a vague memory that the Linux bttv
> driver is derived from the FreeBSD driver so there might be some value
> in digging out the original and using the FreeBSD glue code - avoiding
> the FreeBSD<->Linux conversion code in the bttv driver.

It isn't.  The brooktree driver in FreeBSD has been ported to Linux,
but that isn't the bttv driver - the bttv driver is written from
scratch (as it had better be - you'd not be able to distribute a
binary version of it otherwise, due to the wasteful limitations of the
GPL).

Eivind.


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