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Re: usb and no bus_dma(9)

To: KIYOHARA Takashi <kiyohara%kk.iij4u.or.jp@localhost>
Subject: Re: usb and no bus_dma(9)
From: Martin Husemann <martin%duskware.de@localhost>
Date: Sun, 13 Mar 2011 10:21:06 +0100

On Sun, Mar 13, 2011 at 04:11:06PM +0900, KIYOHARA Takashi wrote:
> 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.

Isn't it easy to provide a bus_dma implementation that does not realy
do dma?

That would be far preferable to crippling lots of other code with MD hacks,
IMHO.

Martin

Follow-Ups:
- Re: usb and no bus_dma(9)
  - From: KIYOHARA Takashi

References:
- usb and no bus_dma(9)
  - From: KIYOHARA Takashi

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