Update the cd(9) man page for the CAM cd driver. This really just an

update of the quirk entry descriptions to reflect the current state of
things.

Once I find out where such things belong, I'll document things like
the changer scheduling mechanism, actions taken at probe, etc.

share/man/man9/cd.9

@@ -25,22 +25,25 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$Id: cd.9,v 1.6 1997/04/02 09:41:16 jmg Exp $
+.\"	$Id: cd.9,v 1.7 1998/03/12 07:31:16 charnier Exp $
 .\"
-.Dd February 1, 1997
+.Dd October 10, 1998
 .Dt CD 9
 .Os FreeBSD
 .Sh NAME
 .Nm cd
-.Nd device driver for SCSI subsystem
+.Nd CDROM driver for the CAM SCSI subsystem
 .Sh DESCRIPTION
 The
 .Nm
-device driver provides the 
+device driver provides a read only interface for CDROM drives (
 .Tn SCSI
-subsystem a way to handle type 5
+type 5)
-.Pq Dv T_READONLY
+and WORM drives (
-media.  Some drives don't behave as the driver expects.  See the section
+.Tn SCSI
+type 4)
+that support CDROM type commands.
+Some drives don't behave as the driver expects.  See the section
 QUIRKS for info on possible flags.
 .Sh QUIRKS
 Each
@@ -54,26 +57,35 @@ 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.
+there is a disk in the drive and find out what size it is.  This flag is
+currently unimplemented in the CAM
+.Nm cd
+driver.
 .It Dv CD_Q_BCD_TRACKS
 This flag is for broken drives that return the track numbers in packed BCD
 instead of straight decimal.  If the drive seems to skip tracks
 .Pq tracks 10-15 are skipped
 then you have a drive that is in need of this flag.
+.It Dv CD_Q_NO_CHANGER
+This flag tells the driver that the device in question is not a changer.
+This is only necessary for a CDROM device with multiple luns that are not a
+part of a changer.
+.It Dv CD_Q_CHANGER
+This flag tells the driver that the given device is a multi-lun changer.
+In general, the driver will figure this out automatically when it sees a
+LUN greater than 0.  Setting this flag only has the effect of telling the
+driver to run the initial read capacity command for LUN 0 of the changer
+through the changer scheduling code.
 .El
 .Sh FILES
-.Bl -tag -width /sys/scsi/scsiconf.h -compact
+.Bl -tag -width /sys/cam/scsi/scsi_cd.c -compact
-.It Pa /sys/scsi/cd.c
+.It Pa /sys/cam/scsi/scsi_cd.c
-files contains actual driver code
+is the driver source file.
-.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 scsi 4 ,
-.Xr scsiconf 9
+.Xr xpt 9
 .Sh HISTORY
 The
 .Nm
@@ -83,3 +95,7 @@ manual page first appeared in
 This
 manual page was written by
 .An John-Mark Gurney Aq gurney_j@efn.org .
+It was updated for CAM and
+.Fx 3.0
+by
+.An Kenneth Merry Aq ken@FreeBSD.ORG .