87 lines
3.0 KiB
Groff
87 lines
3.0 KiB
Groff
.\" Copyright (c) 1997
|
|
.\" John-Mark Gurney. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the author nor the names of any co-contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY John-Mark Gurney AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $Id$
|
|
.\"
|
|
.Dd February 1, 1997
|
|
.Dt CD 9
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm cd
|
|
.Nd device driver for SCSI subsystem
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
device driver provides the
|
|
.Tn SCSI
|
|
subsystem a way to handle type 5
|
|
.Pq Dv T_READONLY
|
|
media. Some drives don't behave as the driver expects. See the section
|
|
QUIRKS for info on possible flags.
|
|
.Sh QUIRKS
|
|
Each
|
|
.Tn CD-ROM
|
|
device can have different interpretations of the
|
|
.Tn 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
|
|
.Xr scsiconf 9
|
|
for more information on how to add quirk entries.
|
|
.Bl -tag -width CD_Q_BCD_TRACKS
|
|
.It Dv 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.
|
|
.ig xx
|
|
.It Dv CD_Q_BCD_TRACKS
|
|
This flag is for broken drives that return the track numbers in packed BCD
|
|
encoding instead of straight decimal. If the drive seems to skip tracks
|
|
.Pq usually tracks 10-15 are skipped
|
|
then you have a drive that is in need of this flag.
|
|
.xx
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width /sys/scsi/scsiconf.h -compact
|
|
.It Pa /sys/scsi/cd.c
|
|
files contains actual driver code
|
|
.It Pa /sys/scsi/scsiconf.h
|
|
contains the defines of the
|
|
.Dv CD_Q_xxx
|
|
quirk flags
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr cd 4 ,
|
|
.Xr scsiconf 9
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
manual page first appeared in
|
|
.Fx 2.2 .
|
|
.Sh AUTHOR
|
|
This
|
|
manual page was written by John-Mark Gurney
|
|
.Aq gurney_j@efn.org .
|