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Draft: temp/feedbackd: fork for HW pattern support

Administrator requested to merge feedbackd-hw-pattern into master

Fork feedbackd from Alpine to add patches for HW pattern support found in Qualcomm SoCs for notification LEDs. If the LED supports the hw_pattern sysfs entry, feedbackd will leverage now the hardware for generating the LED patterns saving power and allows the blink the LED still while the whole device is suspended.

Important for Qualcomm based devices such as Oneplus 6/6T, SHIFTPHONES SHIFT6mq, Xiaomi POCOPHONE F1 (SDM845). Probably also applicable to newer SoCs found in Fairphone 4/5 or others. EDIT: Fairphone 3 has this as well.

This is a temporary fork for testing within pmaports, shall be upstream soon in Alpine anyway

See https://source.puri.sm/Librem5/feedbackd/-/merge_requests/100

How to test it

  • Install with mrtest 5160
  • Kill currently running feedbackd: killall feedbackd
  • Start a notification with fbcli: fbcli -E message-missed-email
  • Check if hw_pattern has content: cat /sys/class/$LED:status/hw_pattern. Replace $LED with the actual color like rgb, white, etc.
Edited by Administrator

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