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-rw-r--r--Documentation/scsi/st.rst5
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diff --git a/Documentation/scsi/st.rst b/Documentation/scsi/st.rst
index d3b28c28d74c..b4a092faa9c8 100644
--- a/Documentation/scsi/st.rst
+++ b/Documentation/scsi/st.rst
@@ -157,6 +157,11 @@ enabled driver and mode options. The value in the file is a bit mask where the
bit definitions are the same as those used with MTSETDRVBUFFER in setting the
options.
+Each directory contains the entry 'position_lost_in_reset'. If this value is
+one, reading and writing to the device is blocked after device reset. Most
+devices rewind the tape after reset and the writes/read don't access the
+tape position the user expects.
+
A link named 'tape' is made from the SCSI device directory to the class
directory corresponding to the mode 0 auto-rewind device (e.g., st0).