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Speed select for Plextor CD-ROM

daemon@ATHENA.MIT.EDU (Ruud Linders +31 35 6872508)
Tue Jan 20 07:25:06 1998

Date: 	Tue, 20 Jan 1998 13:23:07 +0100
From: rlinders@hvssa01.nl.lucent.com (Ruud Linders +31 35 6872508)
To: linux-scsi@vger.rutgers.edu


Anybody has any info how to set the speed of a plextor CD-ROM
drive, the 12/20 in particular ?

The latest 2.1.7X kernels have support to set the speed of scsi3-mmc
compliant drives using ioctl's, but for non-scsi3 drives the speed
selection is simply disabled.

Reading through the source for cdrecord-1.6, there are some examples
how to set the speed for eg. Yamaha/Philips/Sony cdrom(-recorders)
but every vendor seems to have it's own modepage to control the drive
speed (which is probably why non-scsi3 speed-select isn't in the
kernel!).

Thanks,
  Ruud Linders
  ruud@lucent.com




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