Re: usb and no bus_dma(9)

[David Young <dyoung%pobox.com@localhost>]

On Sun, Mar 13, 2011 at 09:21:01AM +0000, Michael van Elst wrote:
> kiyohara%kk.iij4u.or.jp@localhost (KIYOHARA Takashi) writes:
> 
> >Our usb driver demands bus_dma(9) without fail.  However, slhci(4)
> >doesn't use DMA.  Moreover, some ports is not supporting bus_dma(9)
> >now.  This becomes a big problem to use USB with some ports.  For
> >instance, mmeye (Perhaps, amiga also :) can insert slhci@pcmcia to
> >the pcmcia slot.  It is necessary to merge this diff for mmeye and
> >amiga user.
> 
> Shouldn't the real fix be to provide a dummy bus_dma() interface
> for these ports?

That is what I would like to see.  Adding MD #ifdef's to MI drivers is
not ok.

Dave

-- 
David Young             OJC Technologies
dyoung%ojctech.com@localhost      Urbana, IL * (217) 344-0444 x24