access AXP803 reg on Pine64 via sysfs

[JTX]

Hi everyone,

I'm using Pine64 LTS for a project. According to AXP803 datasheet  Page37 & 38, the charge LED indicator can be set to Mode A or Mode B. Does anyone know how to change this setting via sysfs, or other interface(I2c, Uart) ?


pine@pine64so:/sys/class/power_supply$ ls
axp20x-battery  axp813-ac
pine@pine64so:/sys/class/power_supply$ cd axp813-ac
pine@pine64so:/sys/class/power_supply/axp813-ac$ ls
device  health  input_current_limit  online  power  present  subsystem  type  uevent  voltage_min
pine@pine64so:/sys/class/power_supply/axp813-ac$ cat uevent
POWER_SUPPLY_NAME=axp813-ac
POWER_SUPPLY_HEALTH=Good
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_ONLINE=1
POWER_SUPPLY_VOLTAGE_MIN=4000000
POWER_SUPPLY_INPUT_CURRENT_LIMIT=1500000


Thanks,
JTX

[Tido]

below the download links you find some hints to the build: https://www.armbian.com/pine64/

[Igor]

On 4/16/2019 at 4:54 AM, JTX said:

Does anyone know how to change this setting via sysfs, or other interface(I2c, Uart) ?

Similar as for AXP209
http://hardware-libre.fr/2014/11/banana-pi-axp209-battery-power-monitoring/