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| author | Manuel Fombuena <fombuena@outlook.com> | 2026-07-02 23:37:03 +0100 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2026-07-09 10:53:04 +0100 |
| commit | 96fa4d69958cf90740d756d1e45cdb02cface41b (patch) | |
| tree | d22daded9c6aa805d9a9b9df1811761cb3cca583 | |
| parent | cf197514bdfd3877f42b5dce1efd40b7b686547e (diff) | |
| download | linux-96fa4d69958cf90740d756d1e45cdb02cface41b.tar.gz linux-96fa4d69958cf90740d756d1e45cdb02cface41b.zip | |
leds: st1202: Correct and extend hw_pattern documentation
Fix the repeat section: -1 is a valid value meaning infinite repeat,
as accepted by the ledtrig-pattern sysfs interface; only 0 and values
below -1 are rejected. The previous text incorrectly stated all negative
numbers were invalid. Also remove the redundant trailing sentence since
the behaviour is now covered inline.
Add the brightness range (0-255) to the hw_pattern section, which was
previously undocumented.
Fixes: b1816b22381b ("Documentation:leds: Add leds-st1202.rst")
Signed-off-by: Manuel Fombuena <fombuena@outlook.com>
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB8497B2FB4F5AC4B142790CE5C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | Documentation/leds/leds-st1202.rst | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Documentation/leds/leds-st1202.rst b/Documentation/leds/leds-st1202.rst index a2353549469e..ed32eb3a27d4 100644 --- a/Documentation/leds/leds-st1202.rst +++ b/Documentation/leds/leds-st1202.rst @@ -16,6 +16,7 @@ in terms of PWM duty-cycle and duration (ms). To be compatible with the hardware pattern format, maximum 8 tuples of brightness (PWM) and duration must be written to hw_pattern. +- Brightness range: 0-255 - Min pattern duration: 22 ms - Max pattern duration: 5610 ms @@ -26,9 +27,7 @@ The format of the hardware pattern values should be: ---------------------------- Specify a pattern repeat number, which is common for all channels. -Default is 1; negative numbers and 0 are invalid. +Default is 1. Writing 0 is invalid. Writing -1 or 255 repeats the +pattern indefinitely. This file will always return the originally written repeat number. - -When the 255 value is written to it, all patterns will repeat -indefinitely. |