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-rw-r--r--Documentation/admin-guide/pstore-blk.rst9
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/admin-guide/pstore-blk.rst b/Documentation/admin-guide/pstore-blk.rst
index d45341e55e82..296d5027787a 100644
--- a/Documentation/admin-guide/pstore-blk.rst
+++ b/Documentation/admin-guide/pstore-blk.rst
@@ -43,9 +43,9 @@ blkdev
~~~~~~
The block device to use. Most of the time, it is a partition of block device.
-It's required for pstore/blk.
+It's required for pstore/blk. It is also used for MTD device.
-It accepts the following variants:
+It accepts the following variants for block device:
1. <hex_major><hex_minor> device number in hexadecimal represents itself; no
leading 0x, for example b302.
@@ -64,6 +64,11 @@ It accepts the following variants:
partition with a known unique id.
#. <major>:<minor> major and minor number of the device separated by a colon.
+It accepts the following variants for MTD device:
+
+1. <device name> MTD device name. "pstore" is recommended.
+#. <device number> MTD device number.
+
kmsg_size
~~~~~~~~~