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#!/bin/bash
rotation="${1}"
if [ "$#" -ne 1 ]; then
printf "Usage: $0 [angle]\n"
exit 1
fi
rise=$(awk -v ang=$1 'BEGIN { print int( sin(ang*2*atan2(1,0)/180.0) * 2^31-1 + 0.5) }')
run=$(awk -v ang=$1 'BEGIN { print int( cos(ang*2*atan2(1,0)/180.0) * 2^31-1 + 0.5) }')
sudo su -c "echo ${rise} > /sys/module/hid/parameters/rise"
sudo su -c "echo ${run} > /sys/module/hid/parameters/run"
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