add scan_scsi.linux

diff --git a/packaging/scan_scsi.linux b/packaging/scan_scsi.linux
new file mode 100644 (file)
index 0000000..9fcbe98
--- /dev/null
+++ b/packaging/scan_scsi.linux
@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# show generic devices for CDROM SCSI devices
+#
+# needs a mounted /proc filesystem, printf, echo and grep
+#
+# when invoked with a number, the n-th cdrom SCSI address is
+# printed.
+#
+# example: 'scan_scsi.linux 2' will print the SCSI settings for
+#          the second cdrom device, namely '0,4,0' in my
+#          system.
+#
+# BUGS: limited to 9 devices
+#
+
+NUMBER=0
+LETTER=a
+while read ID; do
+       if [ ".${ID%%' '}" = ".Attached devices:" ]; then
+               continue;
+       fi
+       read ignore;
+       read ignore type ignore;
+       echo $ID '  ' $type ' -> ' /dev/sg$NUMBER
+       #echo $ID '  ' $type ' -> ' /dev/sg$NUMBER or /dev/sg$LETTER
+       NUMBER=$(($NUMBER + 1))
+#done <test_scanscsi | grep "WORM\|CD-ROM" |
+done </proc/scsi/scsi | grep "WORM\|CD-ROM" | \
+(DRIVES=1
+while read CD_DRIVE; do
+       if test $# -ne 0; then
+               if test $DRIVES -eq $1; then
+                       CD_DRIVE=${CD_DRIVE#Host: scsi}
+                       SCSIHOST=${CD_DRIVE%% *}
+                       CHANNEL=${CD_DRIVE#*Channel: }
+                       CHANNEL=${CHANNEL%% *}
+                       SCSIID=${CD_DRIVE#*Id: }
+                       SCSIID=${SCSIID%% *}
+                       SCSILUN=${CD_DRIVE#*Lun: }
+                       SCSILUN=${SCSILUN%% *}
+                       #CD_DRIVE=${CD_DRIVE% or /dev/*}
+                       echo ${CHANNEL},${SCSIID},${SCSILUN}
+                       break;
+               fi
+       else
+                       echo ${CD_DRIVE}
+       fi
+       DRIVES=$(($DRIVES + 1))
+done)