mirror of
https://github.com/brain-hackers/brain-config.git
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38 lines
1.1 KiB
Bash
38 lines
1.1 KiB
Bash
#!/bin/sh
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### BEGIN INIT INFO
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# Provides: raspi-config
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# Required-Start: udev mountkernfs $remote_fs
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# Required-Stop:
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# Default-Start: S
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# Default-Stop:
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# Short-Description: Switch to ondemand cpu governor (unless shift key is pressed)
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# Description:
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### END INIT INFO
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. /lib/lsb/init-functions
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case "$1" in
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start)
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log_daemon_msg "Checking if shift key is held down"
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timeout 1 thd --dump /dev/input/event* | grep -q "LEFTSHIFT\|RIGHTSHIFT"
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if [ $? -eq 0 ]; then
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printf " Yes. Not enabling ondemand scaling governor"
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log_end_msg 0
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else
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printf " No. Switching to ondemand scaling governor"
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SYS_CPUFREQ_GOVERNOR=/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
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if [ -e $SYS_CPUFREQ_GOVERNOR ]; then
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echo "ondemand" > $SYS_CPUFREQ_GOVERNOR
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echo 50 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold
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echo 100000 > /sys/devices/system/cpu/cpufreq/ondemand/sampling_rate
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echo 50 > /sys/devices/system/cpu/cpufreq/ondemand/sampling_down_factor
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fi
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log_end_msg 0
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fi
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;;
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*)
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echo "Usage: $0 start" >&2
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exit 3
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;;
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esac
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