| .. 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. |
