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CD(9)		       FreeBSD Kernel Developer's Manual		 CD(9)

NAME
     cd	-- device driver for SCSI subsystem

DESCRIPTION
     The cd device driver provides the SCSI subsystem a	way to handle type 5
     (T_READONLY) media.  Some drives don't behave as the driver expects.  See
     the section QUIRKS	for info on possible flags.

QUIRKS
     Each CD-ROM device	can have different interpretations of the SCSI spec.
     This can lead to drives requiring special handling	in the driver.	The
     following is a list of quirks that	the driver recognize.  See scsiconf(9)
     for more information on how to add	quirk entries.

     CD_Q_NO_TOUCH    This flag	tell the driver	not to probe the drive at
		      attach time to see if there is a disk in the drive and
		      find out what size it is.

FILES
     /sys/scsi/cd.c	   files contains actual driver	code
     /sys/scsi/scsiconf.h  contains the	defines	of the CD_Q_xxx	quirk flags

SEE ALSO
     cd(4), scsiconf(9)

HISTORY
     The cd manual page	first appeared in FreeBSD 2.2.

AUTHOR
     This manual page was written by John-Mark Gurney <gurney_j@efn.org>.

FreeBSD			       February	1, 1997			       FreeBSD

NAME | DESCRIPTION | QUIRKS | FILES | SEE ALSO | HISTORY | AUTHOR

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<https://www.freebsd.org/cgi/man.cgi?query=cd&sektion=9&manpath=FreeBSD+2.2.1-RELEASE>

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