Subject: Re: ATA/ATAPI kernel redesign
To: Lloyd Parkes <>
From: David Brownlee <>
List: tech-kern
Date: 02/17/2002 12:52:38
On Sun, 17 Feb 2002, Lloyd Parkes wrote:

> My proposal is as follows:
> 	1) The files dev/ic/wdc* are copied into dev/ata/ and renamed to
> 	   reflect a more ATA view of the world. Personally, I would do
> 	   this by copying the CVS files because I like keeping a full
> 	   history of changes.
> 	2) The GENERIC config files are changed to comment out wdc on
> 	   the ISA bus with appropriate comments explaining that this
> 	   driver and the ata driver are mutually exclusive.
> 	3) We clean up dev/ata/*, removing a lot of accumulated cruft.
> 	   I expect that we would have enough support in dev/ata for
> 	   early (dodgy) ATA devices that well behaved WDC style
> 	   ST506/412 devices will in fact work with it.

	If you do this then it would be better to include both in the
	kernel config and probe/attach the new ata version on appropriate
	machines, falling back to the wdc version on older machines.
		David/absolute		-- No hype required --