59 lines
1.5 KiB
Plaintext
59 lines
1.5 KiB
Plaintext
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#!/bin/bash
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# Usage:
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# Set all fans speed to $1
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usage() {
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echo "This script must be run with super-user privilege."
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echo "Warning! Wrongly set fan speed may result in physical damage to the device."
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echo ""
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echo "usage: set-fan-speed speed_in_rpm"
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echo "example: set-fan-speed 15000"
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}
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if [ $# -ne 1 ]; then
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usage
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exit 1
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fi
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PSU_FAN1=/sys/class/i2c-adapter/i2c-1/1-0058/fan1_target
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PSU_FAN2=/sys/class/i2c-adapter/i2c-1/1-0059/fan1_target
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# Three fan trays with each contains two separate fans
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# fan1-fan4 fan2-fan5 fan3-fan6
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FAN1=/sys/class/i2c-adapter/i2c-11/11-0029/fan1_target
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FAN2=/sys/class/i2c-adapter/i2c-11/11-0029/fan2_target
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FAN3=/sys/class/i2c-adapter/i2c-11/11-0029/fan3_target
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FAN4=/sys/class/i2c-adapter/i2c-11/11-0029/fan4_target
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FAN5=/sys/class/i2c-adapter/i2c-11/11-002a/fan1_target
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FAN6=/sys/class/i2c-adapter/i2c-11/11-002a/fan2_target
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speed=$1
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logger -t platform-modules "Trying to set fan speed to $speed"
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# Retry three times
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for i in `seq 1 3`
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do
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if [ -w $FAN1 -o -w $FAN2 -o -w $FAN3 ]; then
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# set default psu fan speed
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echo $speed > $PSU_FAN1
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echo $speed > $PSU_FAN2
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# set default fan speed
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echo $speed > $FAN1
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echo $speed > $FAN2
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echo $speed > $FAN3
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echo $speed > $FAN4
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echo $speed > $FAN5
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echo $speed > $FAN6
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logger -t platform-modules "Fan speed is set to $speed"
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exit 0
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fi
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# Sleep for 3 seconds to wait for device tree to be ready
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sleep 3
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done
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logger -p user.error -t platform-modules "Failed to set fan speed!"
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exit 1
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