diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/scsi/st.txt | 12 |
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. | |||
2 | The driver is currently maintained by Kai Mäkisara (email | 2 | The driver is currently maintained by Kai Mäkisara (email |
3 | Kai.Makisara@kolumbus.fi) | 3 | Kai.Makisara@kolumbus.fi) |
4 | 4 | ||
5 | Last modified: Mon Mar 7 21:14:44 2005 by kai.makisara | 5 | Last modified: Sun Feb 24 21:59:07 2008 by kai.makisara |
6 | 6 | ||
7 | 7 | ||
8 | BASICS | 8 | BASICS |
@@ -133,6 +133,11 @@ the defaults set by the user. The value -1 means the default is not set. The | |||
133 | file 'dev' contains the device numbers corresponding to this device. The links | 133 | file '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 | ||
136 | Each directory also contains the entry 'options' which shows the currently | ||
137 | enabled driver and mode options. The value in the file is a bit mask where the | ||
138 | bit definitions are the same as those used with MTSETDRVBUFFER in setting the | ||
139 | options. | ||
140 | |||
136 | A link named 'tape' is made from the SCSI device directory to the class | 141 | A link named 'tape' is made from the SCSI device directory to the class |
137 | directory corresponding to the mode 0 auto-rewind device (e.g., st0). | 142 | directory 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 |