From: Ulf Carlsson <ulfc@bun.falkenberg.se>
To: Linux SGI <linux@cthulhu.engr.sgi.com>
Subject: HAL2 spec bug
Date: Tue, 6 Apr 1999 12:31:35 -0400 [thread overview]
Message-ID: <19990406123135.A21186@bun.falkenberg.se> (raw)
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
reply other threads:[~1999-04-06 10:43 UTC|newest]
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