[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <3ce269887c51319b2428a75e7fd008abc6fd6638.1711113657.git.hodges.daniel.scott@gmail.com>
Date: Fri, 22 Mar 2024 10:08:16 -0400
From: Daniel Hodges <hodges.daniel.scott@...il.com>
To: ast@...nel.org,
pavel@....cz,
lee@...nel.org,
linux-leds@...r.kernel.org,
daniel@...earbox.net,
bpf@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Daniel Hodges <hodges.daniel.scott@...il.com>
Subject: [PATCH 3/3] leds: trigger: Add documentation for ledtrig-bpf
Update the documentation for led triggers to include the BPF LED
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
--
2.43.0
Powered by blists - more mailing lists