android 模拟IR(续四)---问题总结
1、系统卡在动画处不能启动，原因在于(IIZ)写错为(I;I;Z)
static JNINativeMethod method_table[] = {
{"native_open", "()I",(void *)android_server_IrSend_open},
{"native_close", "()Z", (void *)android_server_IrSend_close},
{"native_irsend", "(IIZ)Z", (void *)android_server_IrSend_sendir},
};
2、设备节点不能打开，原因在于权限不够；在init.rc中增加chmod 0666 /dev/gpio 修改设备节点权限
init.edison.rc
on boot
mount debugfs /sys/kernel/debug /sys/kernel/debug
chmod 0666 /dev/pvrsrvkm
+ chmod 0666 /dev/gpio