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Date: Thu, 6 Feb 1997 14:19:50 -0800 (PST)
From: Joerg Wunsch <joerg>
Message-Id: <199702062219.OAA10275@freefall.freebsd.org>
To: CVS-committers, cvs-all, cvs-sys
Subject: cvs commit:  src/sys/scsi worm.c
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joerg       97/02/06 14:19:49

  Modified:    sys/scsi  worm.c
  Log:
  After so many people have been bugging me :), finally implement
  read-mode access to CD-ROM media in the worm(4) driver.  No whistles
  and bells yet, like all the CDIO* commands, but at least a start.
  
  In order to do this, i had to slightly rearrange the semantics of an
  open(2) on the worm driver: now, opening it with O_NONBLOCK set means
  no actual IO operations will be intended but only ioctls are to be
  processed.  This mode is used by wormcontrol(8) to prepare a track
  and/or session.
  
  I have only been able to test this on a 2.2-GAMMA system by now, and
  only the !DEVFS part is tested yet.  Also, i have only done a dummy
  burn so far, but wouldn't expect many surprises else.  Report bugs to
  me ASAP, if there's reasonable demand and i hear no objections, i
  might consider merging it into the 2.2 branch as well.
  
  Revision  Changes    Path
  1.32      +80 -52    src/sys/scsi/worm.c