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#!bin/bash
# set fan pwm by d-bus command
function set_fan_value() {
# Failsafe
echo 255 > /sys/class/hwmon/*/pwm1
# DBUS interface
set_property_path='xyz.openbmc_project.Control.FanPwm'
busctl set-property $1 $2 $set_property_path Target t 255
}
# WARNING
# This makes a number of assumptions about the bus structure underlying the fan controllers...
hwmon_path="$(mapper get-service /xyz/openbmc_project/sensors/fan_tach/fan0)"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan0" "/sys/class/hwmon/*/pwm1"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan1" "/sys/class/hwmon/*/pwm2"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan2" "/sys/class/hwmon/*/pwm3"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan3" "/sys/class/hwmon/*/pwm4"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan4" "/sys/class/hwmon/*/pwm5"
set_fan_value $hwmon_path "/xyz/openbmc_project/sensors/fan_tach/fan5" "/sys/class/hwmon/*/pwm6"
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