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    Subject[PATCH 1/6] Documentation: hw_random: Fix device node name /dev/hw_random => /dev/hwrng
    Date
    In April 2099, 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 now, 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


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