mmap()

[John-Mark Gurney]

Kamal R. Prasad wrote this message on Wed, Dec 08, 2004 at 10:45 +0530:
> Wilko Bulte wrote:
> 
> >On Tue, Dec 07, 2004 at 02:19:19PM -0800, John-Mark Gurney wrote..
> >
> >>Kamal R. Prasad wrote this message on Tue, Dec 07, 2004 at 22:21 +0530:
> >>
> >>>There was a bug in my  interface routine which probably resulted in too 
> >>>many calls.
> >>>Something like *paddr=vtophys(base) instead of 
> >>>*paddr=vtophys(base+offset) should result in lots of calls to the 
> >>>interface.
> >>>
> >>Just remeber that vtophys is not a supported interface in HEAD, (if it
> >>still works, it will probably be removed shortly).. Also, vtophys only
> >>works on limited archs, like i386 and alpha...
> >
> >s/limited/some/
>
> So what would be the equivalent supported interface in HEAD?

bus_dma(9)  It's a bit more complicated though...  but with out it,
you won't be able to get your driver working on sparc64...

> BTW -man (4) usb probably needs more info than present.

I'm sure it does, feel free to send-pr patches.. :)

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."