diff mbox

[v5,2/8] char: rpmb: add sysfs-class ABI documentation

Message ID 1468873673-21776-3-git-send-email-tomas.winkler@intel.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Winkler, Tomas July 18, 2016, 8:27 p.m. UTC
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
V2: resend
V3: add more verbose description
V4: resend
V5: adjust date and kernel version

 Documentation/ABI/testing/sysfs-class-rpmb | 20 ++++++++++++++++++++
 MAINTAINERS                                |  1 +
 2 files changed, 21 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-rpmb

Comments

Greg KH Aug. 31, 2016, 10:53 a.m. UTC | #1
On Mon, Jul 18, 2016 at 11:27:47PM +0300, Tomas Winkler wrote:
> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
> ---
> V2: resend
> V3: add more verbose description
> V4: resend
> V5: adjust date and kernel version
> 
>  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..3ffcd2d1f683
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-class-rpmb
> @@ -0,0 +1,20 @@
> +What:		/sys/class/rpmb/
> +Date:		Aug 2016
> +KernelVersion:  4.8
> +Contact:	Tomas Winkler <tomas.winkler@intel.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:		Aug 2016
> +KernelVersion:	4.8
> +Contact:	Tomas Winkler <tomas.winkler@intel.com>
> +Description:
> +		The /sys/class/rpmb/rpmbN directory is created for
> +		each RPMB registered device

So you have no sysfs files?  If not, why have a sysfs class at all?

thanks,

greg k-h
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diff mbox

Patch

diff --git a/Documentation/ABI/testing/sysfs-class-rpmb b/Documentation/ABI/testing/sysfs-class-rpmb
new file mode 100644
index 000000000000..3ffcd2d1f683
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-rpmb
@@ -0,0 +1,20 @@ 
+What:		/sys/class/rpmb/
+Date:		Aug 2016
+KernelVersion:  4.8
+Contact:	Tomas Winkler <tomas.winkler@intel.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:		Aug 2016
+KernelVersion:	4.8
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:
+		The /sys/class/rpmb/rpmbN directory is created for
+		each RPMB registered device
diff --git a/MAINTAINERS b/MAINTAINERS
index 50143ebc862f..02a6f6f10f48 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9712,6 +9712,7 @@  L:	linux-kernel@vger.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@iki.fi>