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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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.. SPDX-License-Identifier: GPL-2.0
============================================
Kernel driver for STMicroelectronics LED1202
============================================
/sys/class/leds/<led>/hw_pattern
--------------------------------
Specify a hardware pattern for the ST1202 LED. The LED controller
implements 12 low-side current generators with independent dimming
control. Internal volatile memory allows the user to store up to 8
different patterns. Each pattern is a particular output configuration
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.
- Min pattern duration: 22 ms
- Max pattern duration: 5660 ms
The format of the hardware pattern values should be:
"brightness duration brightness duration ..."
/sys/class/leds/<led>/repeat
----------------------------
Specify a pattern repeat number, which is common for all channels.
Default is 1; negative numbers and 0 are invalid.
This file will always return the originally written repeat number.
When the 255 value is written to it, all patterns will repeat
indefinitely.