How to control GPIO in Android application?

wangwu125

Serial ------ demo ./base/tests/SerialChat/src/com/android/serialchat/SerialChat.java
gpoi  --------- usage  cd /sys/class/gpio&& echo 18 > export &&cd gpio18&echo out > direction &&echo 1 > value.

wangwu125

you also need add chmod 0666  /sys/class/gpio* init.rc
add  ueventd.rc /sys/class/gpio/*             0666   root       root