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HAL2 spec bug

from [Ulf Carlsson] [Permanent Link][Original]
To: Linux SGI <linux@cthulhu.engr.sgi.com>
Subject: HAL2 spec bug
From: Ulf Carlsson <ulfc@bun.falkenberg.se>
Date: Tue, 6 Apr 1999 12:31:35 -0400
Mail-followup-to: Linux SGI <linux@cthulhu.engr.sgi.com>
Sender: owner-linux@cthulhu.engr.sgi.com 
The DMA noise problem was actually a specification bug. I should not configure
cfgdma as a 16 bit device as the specification explicitly tells me to do. If
it's configured for 16 bit DMA transfers are the low 8 bits just dumped or
replaced with a noise if they differ from the upper 8 bits.

It's kind of hard to write a decent driver when the spec lies for me..

- Ulf
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