Date: Mon, 20 Sep 1999 08:27:55 +0200 (CEST) From: Soren Schmidt <sos@freebsd.dk> To: garyh@mail.win.bright.net (Gary Hampton) Cc: current@FreeBSD.ORG Subject: Re: ata drivers Message-ID: <199909200627.IAA01638@freebsd.dk> In-Reply-To: <Pine.BSF.4.10.9909192348370.2797-100000@localhost> from Gary Hampton at "Sep 19, 1999 11:56:16 pm"
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It seems Gary Hampton wrote: > I have been trying to get the ata drivers to work on my system for a > a while now but can't seem to mount my cdrom drives. This is what I get on > boot up: > atapi: DMA transfer mode set > acd0: <CRW6206A/1.3A> CDROM drive at ata0 as master I'll bet that your CDROM doesn't do DMA right. I was optimistic when I added the ATAPI DMA code, but it seems LOTS, and I mean LOTS of ATAPI devices doesn't work in DMA mode even if they tell you so :( You can disable DMA on atapi devices by commecnting out the code block with the ata_dmainit call in it. I have a new version of the ATA driver very close to being committed, and it might solve some of this. The real solution might be to have a positive list of ATAPI devices known to work in DMA mode. -Soren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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