From: Lee Jones <lee.jones@linaro.org>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org,
peter@korsgaard.com, festevam@gmail.com, kieranbingham@gmail.com
Cc: Lee Jones <lee.jones@linaro.org>, kernel@stlinux.com
Subject: [PATCH v2 1/7] Documentation: hw_random: Fix device node name reference /dev/hw_random => /dev/hwrng
Date: Thu, 17 Sep 2015 14:45:51 +0100 [thread overview]
Message-ID: <1442497557-9271-2-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1442497557-9271-1-git-send-email-lee.jones@linaro.org>
In April 2009, commit d405640 ("Driver Core: misc: add node name support
for misc devices.") inadvertently changed the device node name from
/dev/hw_random to /dev/hwrng. Since 6 years has passed since the change
it seems unpractical to change it back, as this node name is probably
considered ABI by now. So instead, we'll just change the documentation
to match the current situation.
NB: It looks like rng-tools have already been updated.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
Documentation/hw_random.txt | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Documentation/hw_random.txt b/Documentation/hw_random.txt
index 026e237..fce1634 100644
--- a/Documentation/hw_random.txt
+++ b/Documentation/hw_random.txt
@@ -3,7 +3,7 @@ Introduction:
The hw_random framework is software that makes use of a
special hardware feature on your CPU or motherboard,
a Random Number Generator (RNG). The software has two parts:
- a core providing the /dev/hw_random character device and its
+ a core providing the /dev/hwrng character device and its
sysfs support, plus a hardware-specific driver that plugs
into that core.
@@ -14,7 +14,7 @@ Introduction:
http://sourceforge.net/projects/gkernel/
- Those tools use /dev/hw_random to fill the kernel entropy pool,
+ Those tools use /dev/hwrng to fill the kernel entropy pool,
which is used internally and exported by the /dev/urandom and
/dev/random special files.
@@ -32,13 +32,13 @@ Theory of operation:
The rng-tools package uses such tests in "rngd", and lets you
run them by hand with a "rngtest" utility.
- /dev/hw_random is char device major 10, minor 183.
+ /dev/hwrng is char device major 10, minor 183.
CLASS DEVICE. There is a /sys/class/misc/hw_random node with
two unique attributes, "rng_available" and "rng_current". The
"rng_available" attribute lists the hardware-specific drivers
available, while "rng_current" lists the one which is currently
- connected to /dev/hw_random. If your system has more than one
+ connected to /dev/hwrng. If your system has more than one
RNG available, you may change the one used by writing a name from
the list in "rng_available" into "rng_current".
--
1.9.1
next prev parent reply other threads:[~2015-09-17 13:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-17 13:45 [PATCH v2 0/7] hwrng: Add support for STMicroelectronics' RNG IP Lee Jones
2015-09-17 13:45 ` Lee Jones [this message]
[not found] ` <1442497557-9271-2-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-09-18 10:18 ` [PATCH v2 1/7] Documentation: hw_random: Fix device node name reference /dev/hw_random => /dev/hwrng Kieran Bingham
2015-09-17 13:45 ` [PATCH v2 2/7] hwrng: Kconfig: " Lee Jones
2015-09-18 10:19 ` Kieran Bingham
2015-09-17 13:45 ` [PATCH v2 3/7] hwrng: core: Simplify RNG switching from sysfs Lee Jones
2015-09-17 14:08 ` Peter Korsgaard
2015-09-17 13:45 ` [PATCH v2 5/7] hwrng: st: Add support for ST's HW Random Number Generator Lee Jones
2015-09-18 10:44 ` Kieran Bingham
2015-10-05 10:44 ` Daniel Thompson
2015-10-05 12:11 ` Lee Jones
2015-10-05 12:54 ` Daniel Thompson
2015-10-05 14:52 ` Lee Jones
2015-09-17 13:45 ` [PATCH v2 6/7] ARM: STi: STiH407: Enable the 2 HW Random Number Generators for STiH4{07,10} Lee Jones
2015-10-01 10:57 ` [STLinux Kernel] [PATCH v2 6/7] ARM: STi: STiH407: Enable the 2 HW Random Number Generators for STiH4{07, 10} Maxime Coquelin
2015-09-17 13:45 ` [PATCH v2 7/7] MAINTAINERS: Add ST's Random Number Generator to the ST entry Lee Jones
[not found] ` <1442497557-9271-1-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-09-17 13:45 ` [PATCH v2 4/7] hwrng: st: Provide DT bindings for ST's Random Number Generator Lee Jones
[not found] ` <1442497557-9271-5-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-09-18 16:21 ` Stephen Boyd
2015-09-18 16:23 ` Lee Jones
2015-09-18 14:07 ` [PATCH v2 0/7] hwrng: Add support for STMicroelectronics' RNG IP Herbert Xu
2015-09-18 14:53 ` Lee Jones
2015-09-18 15:11 ` Herbert Xu
2015-09-18 15:51 ` Lee Jones
2015-09-18 23:12 ` Herbert Xu
2015-09-19 9:21 ` Lee Jones
2015-09-20 1:23 ` Herbert Xu
2015-09-20 4:39 ` Lee Jones
2015-09-29 14:29 ` Lee Jones
2015-09-30 13:47 ` Herbert Xu
2015-09-30 14:15 ` Lee Jones
2015-09-30 14:28 ` Herbert Xu
[not found] ` <20150930142812.GA19039-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2015-09-30 14:49 ` [STLinux Kernel] " Maxime Coquelin
2015-09-30 14:50 ` Lee Jones
2015-09-29 9:20 ` [STLinux Kernel] " Peter Griffin
2015-09-29 10:42 ` Lee Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1442497557-9271-2-git-send-email-lee.jones@linaro.org \
--to=lee.jones@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=herbert@gondor.apana.org.au \
--cc=kernel@stlinux.com \
--cc=kieranbingham@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peter@korsgaard.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).