From owner-cvs-all  Fri Nov  3 18: 5:29 2000
Delivered-To: cvs-all@freebsd.org
Received: from freefall.freebsd.org (freefall.FreeBSD.org [216.136.204.21])
	by hub.freebsd.org (Postfix) with ESMTP
	id E03CE37B4C5; Fri,  3 Nov 2000 18:05:26 -0800 (PST)
Received: (from ken@localhost)
	by freefall.freebsd.org (8.9.3/8.9.2) id SAA33555;
	Fri, 3 Nov 2000 18:05:26 -0800 (PST)
	(envelope-from ken@FreeBSD.org)
Message-Id: <200011040205.SAA33555@freefall.freebsd.org>
From: Kenneth Merry <ken@FreeBSD.org>
Date: Fri, 3 Nov 2000 18:05:26 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/cam/scsi scsi_cd.c
X-FreeBSD-CVS-Branch: HEAD
Sender: owner-cvs-all@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

ken         2000/11/03 18:05:26 PST

  Modified files:
    sys/cam/scsi         scsi_cd.c 
  Log:
  Fix a problem with the previous revision (1.42) that showed up with audio
  CDs.
  
  With audio CDs, you can't just do a READ(10) call on most drives without
  first setting the blocksize with a mode select command.  The disklabel code
  does a read of the first sector of the media to find a label if it exists.
  
  This caused drives to return an error when an audio CD was in the drive,
  due to the problem described above.
  
  The solution is to read the table of contents on the CD, and only attempt
  to read the disklabel if the first track is a data track.
  
  This works on all the various CD and DVD media I have tried, but further
  testing (especially with Video CDs and other mode 2 media) will be
  needed to determine if this is a universal solution.
  
  Revision  Changes    Path
  1.43      +94 -1     src/sys/cam/scsi/scsi_cd.c



To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message