linux-kernel - Re: [PATCH v2 3/3] leds: trigger: Add documentation for ledtrig-bpf

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Message-ID: <20240411104644.GD1980182@google.com>
Date: Thu, 11 Apr 2024 11:46:44 +0100
From: Lee Jones <lee@...nel.org>
To: Daniel Hodges <hodges.daniel.scott@...il.com>
Cc: ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net,
	linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org,
	pavel@....cz
Subject: Re: [PATCH v2 3/3] leds: trigger: Add documentation for ledtrig-bpf

On Mon, 25 Mar 2024, Daniel Hodges wrote:

> Update the documentation for led triggers to include the BPF LED

LED throughout please.

Same in the previous commit please.

> trigger.
> 
> Signed-off-by: Daniel Hodges <hodges.daniel.scott@...il.com>
> ---
>  Documentation/leds/index.rst       |  1 +
>  Documentation/leds/ledtrig-bpf.rst | 13 +++++++++++++
>  2 files changed, 14 insertions(+)
>  create mode 100644 Documentation/leds/ledtrig-bpf.rst
> 
> diff --git a/Documentation/leds/index.rst b/Documentation/leds/index.rst
> index 3ade16c18328..2af52a19d6bb 100644
> --- a/Documentation/leds/index.rst
> +++ b/Documentation/leds/index.rst
> @@ -10,6 +10,7 @@ LEDs
>     leds-class
>     leds-class-flash
>     leds-class-multicolor
> +   ledtrig-bpf
>     ledtrig-oneshot
>     ledtrig-transient
>     ledtrig-usbport
> diff --git a/Documentation/leds/ledtrig-bpf.rst b/Documentation/leds/ledtrig-bpf.rst
> new file mode 100644
> index 000000000000..391a305f69d1
> --- /dev/null
> +++ b/Documentation/leds/ledtrig-bpf.rst
> @@ -0,0 +1,13 @@
> +====================
> +BPF LED Trigger
> +====================
> +
> +This LED trigger is useful for triggering LEDs from the BPF subsystem.  This
> +trigger is designed to be used in combination with a BPF program that interacts
> +with the trigger via a kfunc.  The exported kfuncs will have BTF names that
> +start with "bpf_ledtrig_".
> +
> +The trigger can be activated from user space on led class devices as shown
> +below::
> +
> +  echo bpf > trigger
> -- 
> 2.43.2
> 

-- 
Lee Jones [李琼斯]