From owner-freebsd-current  Sun Feb  3 21:55:50 2002
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Date: Mon, 4 Feb 2002 00:55:41 -0500 (EST)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: jordan.breeding@attbi.com
Cc: freebsd-current@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG
Subject: Support for atapi cdrw as scsi in -current?
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<<On Sat, 02 Feb 2002 20:10:20 +0000, jordan.breeding@attbi.com said:

> I noticed a patch on freebsd-scsi a while back that 
> added a not very complete form of atapi as scsi support 
> to the freebsd kernel.  Are there plans to complete 
> this and add it to -current sometime before -current 
> turns into 5.0-RELEASE?  Thanks for any information.

I've been using it somewhat actively in the past week or so in
-current.  The patch as it exists needs a few changes to fit in
current -current.

$ camcontrol devlist
<TDK CDRW241040B 57S4>             at scbus0 target 0 lun 0 (cd0,pass0)
<LITEON CD-ROM LTN526D YSR5>       at scbus0 target 1 lun 0 (cd1,pass1)

I don't think that ATAPICAM works well enough to use it entirely in
place of the atapi-cd driver; for example, I get the following errors:

atapicam0: READ_DISK_INFO - ILLEGAL REQUEST asc=0x20 ascq=0x00 error=0x04
atapicam0: READ_TOC - ILLEGAL REQUEST asc=0x24 ascq=0x00 error=0x04

However, it works well-enough to run cdrdao, which is what mattered to
me, for both reading and writing on both of the afore-mentioned ATAPI
devices.

-GAWollman


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