linux-kernel - [PATCH v4 2/8] char: rpmb: add sysfs-class ABI documentation

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Message-Id: <1464817292-5407-3-git-send-email-tomas.winkler@intel.com>
Date:	Wed,  1 Jun 2016 17:41:26 -0400
From:	Tomas Winkler <tomas.winkler@...el.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Vinayak Holikatti <vinholikatti@...il.com>,
	Andy Lutomirski <luto@...nel.org>,
	Arve Hjønnevåg <arve@...roid.com>,
	Michael Ryleev <gmar@...gle.com>,
	Joao Pinto <Joao.Pinto@...opsys.com>,
	Christoph Hellwig <hch@....de>,
	Yaniv Gardi <ygardi@...eaurora.org>
Cc:	linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
	linux-scsi@...r.kernel.org, Tomas Winkler <tomas.winkler@...el.com>
Subject: [PATCH v4 2/8] char: rpmb: add sysfs-class ABI documentation

V2: resend
V3: add more verbose description
V4: update kernel version to 4.8

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 Documentation/ABI/testing/sysfs-class-rpmb | 20 ++++++++++++++++++++
 MAINTAINERS                                |  1 +
 2 files changed, 21 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-rpmb

diff --git a/Documentation/ABI/testing/sysfs-class-rpmb b/Documentation/ABI/testing/sysfs-class-rpmb
new file mode 100644
index 000000000000..44ee4d31dc0b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-rpmb
@@ -0,0 +1,20 @@
+What:		/sys/class/rpmb/
+Date:		Jun 2016
+KernelVersion:  4.8
+Contact:	Tomas Winkler <tomas.winkler@...el.com>
+Description:
+		The rpmb/ class sub-directory belongs to RPMB device class.
+
+		Few storage technologies such is EMMC, UFS, and NVMe support
+		Replay Protected Memory Block (RPMB) hardware partition with
+		common protocol and frame layout.
+		Such a partition provides authenticated and replay protected access,
+		hence suitable as a secure storage.
+
+What:		/sys/class/rpmb/rpmbN/
+Date:		Jun 2016
+KernelVersion:	4.8
+Contact:	Tomas Winkler <tomas.winkler@...el.com>
+Description:
+		The /sys/class/rpmb/rpmbN directory is created for
+		each RPMB registered device
diff --git a/MAINTAINERS b/MAINTAINERS
index e045c3a43920..b4228dd58e06 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9697,6 +9697,7 @@ L:	linux-kernel@...r.kernel.org
 S:	Supported
 F:	drivers/char/rpmb/*
 F:	include/linux/rpmb.h
+F:	Documentation/ABI/testing/sysfs-class-rpmb
 
 RTL2830 MEDIA DRIVER
 M:	Antti Palosaari <crope@....fi>
-- 
2.5.5