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-rw-r--r--sys/conf/NOTES33
1 files changed, 30 insertions, 3 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index ca73dc1..1c46e4c 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -795,19 +795,46 @@ hint.sa.1.target="6"
# All SCSI devices allocate as many units as are required.
+# The ch driver drives SCSI Media Changer ("jukebox") devices.
+#
+# The da driver drives SCSI Direct Access ("disk") and Optical Media
+# ("WORM") devices.
+#
+# The sa driver drives SCSI Sequential Access ("tape") devices.
+#
+# The cd driver drives SCSI Read Only Direct Access ("cd") devices.
+#
+# The ses driver drives SCSI Envinronment Services ("ses") and
+# SAF-TE ("SCSI Accessable Fault-Tolerant Enclosure") devices.
+#
+# The pt driver drives SCSI Processor devices.
+#
+#
+# Target Mode support is provided here but also requires that a SIM
+# (SCSI Host Adapter Driver) provide support as well.
+#
+# The targ driver provides target mode support as a Processor type device.
+# It exists to give the minimal context necessary to respond to Inquiry
+# commands. There is a sample user application that shows how the rest
+# of the command support might be done in /usr/share/examples/scsi_target.
+#
+# The targbh driver provides target mode support and exists to respond
+# to incoming commands that do not otherwise have a logical unit assigned
+# to them.
+#
# The "unknown" device (uk? in pre-2.0.5) is now part of the base SCSI
-# configuration and doesn't have to be explicitly configured.
+# configuration as the "pass" driver.
device scbus #base SCSI code
device ch #SCSI media changers
device da #SCSI direct access devices (aka disks)
device sa #SCSI tapes
device cd #SCSI CD-ROMs
-device pass #CAM passthrough driver
device ses #SCSI Environmental Services (and SAF-TE)
+device pt #SCSI processor
device targ #SCSI Target Mode Code
device targbh #SCSI Target Mode Blackhole Device
-define pt #SCSI Processor Target Device
+device pass #CAM passthrough driver
# CAM OPTIONS:
# debugging options:
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