I.MX6 linux tslib Corrupt calibration data

                        I.MX6 linux tslib Corrupt calibration data

一、tslib出错
Corrupt calibration data 二、解决方法:
......
if [ -f /etc/pointercal ];then
echo "I.MX6 touchscreen have calibrate!"
else
/usr/bin/ts_calibrate
# 一定要注意添加这个同步,否则校正完,快速关机,
# 容易报 Corrupt calibration data
# 具体原因是数据在内存中,但没有写入/etc/pointercal文件,
# 或则只写了一部分到文件。
sync
fi
......
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