aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/scsi/st.txt12
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/scsi/st.txt b/Documentation/scsi/st.txt
index b7be95b5bd24..40752602c050 100644
--- a/Documentation/scsi/st.txt
+++ b/Documentation/scsi/st.txt
@@ -2,7 +2,7 @@ This file contains brief information about the SCSI tape driver.
2The driver is currently maintained by Kai Mäkisara (email 2The driver is currently maintained by Kai Mäkisara (email
3Kai.Makisara@kolumbus.fi) 3Kai.Makisara@kolumbus.fi)
4 4
5Last modified: Mon Mar 7 21:14:44 2005 by kai.makisara 5Last modified: Sun Feb 24 21:59:07 2008 by kai.makisara
6 6
7 7
8BASICS 8BASICS
@@ -133,6 +133,11 @@ the defaults set by the user. The value -1 means the default is not set. The
133file 'dev' contains the device numbers corresponding to this device. The links 133file 'dev' contains the device numbers corresponding to this device. The links
134'device' and 'driver' point to the SCSI device and driver entries. 134'device' and 'driver' point to the SCSI device and driver entries.
135 135
136Each directory also contains the entry 'options' which shows the currently
137enabled driver and mode options. The value in the file is a bit mask where the
138bit definitions are the same as those used with MTSETDRVBUFFER in setting the
139options.
140
136A link named 'tape' is made from the SCSI device directory to the class 141A link named 'tape' is made from the SCSI device directory to the class
137directory corresponding to the mode 0 auto-rewind device (e.g., st0). 142directory corresponding to the mode 0 auto-rewind device (e.g., st0).
138 143
@@ -372,6 +377,11 @@ MTSETDRVBUFFER
372 MT_ST_SYSV sets the SYSV semantics (mode) 377 MT_ST_SYSV sets the SYSV semantics (mode)
373 MT_ST_NOWAIT enables immediate mode (i.e., don't wait for 378 MT_ST_NOWAIT enables immediate mode (i.e., don't wait for
374 the command to finish) for some commands (e.g., rewind) 379 the command to finish) for some commands (e.g., rewind)
380 MT_ST_SILI enables setting the SILI bit in SCSI commands when
381 reading in variable block mode to enhance performance when
382 reading blocks shorter than the byte count; set this only
383 if you are sure that the drive supports SILI and the HBA
384 correctly returns transfer residuals
375 MT_ST_DEBUGGING debugging (global; debugging must be 385 MT_ST_DEBUGGING debugging (global; debugging must be
376 compiled into the driver) 386 compiled into the driver)
377 MT_ST_SETBOOLEANS 387 MT_ST_SETBOOLEANS