驱动加载脚本

#!/bin/sh
function check_rtc()
{
    for i in $(seq 10 -1 1)
    do
        if [ -e "/dev/rtc0" ];then
            echo "[xxx]insmod rtc success"
            return $?
        else
            sleep 1
            rmmod rtc-hym8563.ko
            insmod /lib/modules/rtc-hym8563.ko
            echo "[xxx]insmod rtc loop $i"
        fi
    done
}

case "$1" in
    start)
        echo "[xxx]insmod rtc-hym8563.ko"
        insmod /lib/modules/rtc-hym8563.ko
        check_rtc
        sleep 1
        echo "[xxx]hwclock"
        hwclock -s -u
        [ $? = 0 ] && echo "OK" || echo "FAIL"
        ;;
    stop)
        rmmod rtc-hym8563.ko
        ;;
    restart|reload)
        $0 stop
        $0 start
        ;;
    *)
        echo "Usage: $0 {start|stop|restart}"
        exit 1
esac

exit 0