[PATCH mvebu 2/2] firmware: turris-mox-rwtm: add debugfs documentation

[Gregory CLEMENT]

Marek Behún <marek.behun at nic.cz> writes:

> Add debugfs ABI documentation for the ECDSA signatures.
>
> Signed-off-by: Marek Behún <marek.behun at nic.cz>

Applied on mvebu/drivers

Thanks,

Gregory
> ---
>  Documentation/ABI/testing/debugfs-turris-mox-rwtm | 9 +++++++++
>  1 file changed, 9 insertions(+)
>  create mode 100644 Documentation/ABI/testing/debugfs-turris-mox-rwtm
>
> diff --git a/Documentation/ABI/testing/debugfs-turris-mox-rwtm b/Documentation/ABI/testing/debugfs-turris-mox-rwtm
> new file mode 100644
> index 000000000000..2b3255ee68fd
> --- /dev/null
> +++ b/Documentation/ABI/testing/debugfs-turris-mox-rwtm
> @@ -0,0 +1,9 @@
> +What:		/sys/kernel/debug/turris-mox-rwtm/do_sign
> +Date:		Jun 2020
> +KernelVersion:	5.8
> +Contact:	Marek Behún <marek.behun at nic.cz>
> +Description:	(W) Message to sign with the ECDSA private key stored in
> +		    device's OTP. The message must be exactly 64 bytes (since
> +		    this is intended for SHA-512 hashes).
> +		(R) The resulting signature, 136 bytes. This contains the R and
> +		    S values of the ECDSA signature, both in big-endian format.
> -- 
> 2.26.2
>

-- 
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com