From: Aishwarya Pant <aishpant@gmail.com>
Date: Thu, 1 Mar 2018 18:25:59 +0000 (+0530)
Subject: char/bsr: add sysfs interface documentation
X-Git-Tag: v4.17-rc1~149^2~13
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=2ddf0d655946657b9708bb79cd38a4248c67ac14;p=tomoyo%2Ftomoyo-test1.git

char/bsr: add sysfs interface documentation

Descriptions have collected from code comments and by reading through
code.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

diff --git a/Documentation/ABI/testing/sysfs-class-bsr b/Documentation/ABI/testing/sysfs-class-bsr
new file mode 100644
index 000000000000..7bf145d32cbc
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-bsr
@@ -0,0 +1,25 @@
+What:		/sys/class/bsr/bsr*/bsr_size
+Date:		Jul, 2008
+KernelVersion:	2.6.27
+Contact:	Arnd Bergmann <arnd@arndb.de>,
+		Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Description:
+		(RO) Size of the barrier-synchronization register (BSR)
+		register in bytes.
+
+What:		/sys/class/bsr/bsr*/bsr_length
+Date:		Jul, 2008
+KernelVersion:	2.6.27
+Contact:	Arnd Bergmann <arnd@arndb.de>,
+		Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Description:
+		(RO) The length of memory region that can be mapped in bytes.
+
+What:		/sys/class/bsr/bsr*/bsr_stride
+Date:		Jul, 2008
+KernelVersion:	2.6.27
+Contact:	Arnd Bergmann <arnd@arndb.de>,
+		Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Description:
+		(RO) The stride or the interval at which the allocated BSR bytes
+		repeat within the mapping.