====== 패키지 설치 ======
opkg 
  opkg update
  opkg upgrade
  opkg install python-serial
  

arduino를 위한 패키지
  opkg install kernel-module-cdc-acm
  


커널 모듈 만들기


#include <linux/module.h>
static int __init hello_init(void)
{
    printk(KERN_INFO "Hello Example Init\n");
    return 0;
}
static void __exit hello_exit(void)
{
    printk(KERN_INFO "Hello Example Exit\n");
}
module_init(hello_init);
module_exit(hello_exit);
MODULE_AUTHOR("Chris Hallinan");
MODULE_DESCRIPTION("Hello World Example");
MODULE_LICENSE("GPL");



obj-m := hello.o


#!/bin/bash
export SYSROOTS=${HOME}/angstrom-setup-scripts/build/tmp-angstrom_2008_1/sysroots
export PATH=${PATH}:${SYSROOTS}/i686-linux/usr/armv7a/bin
export ARCH=arm
export CROSS_COMPILE=arm-angstrom-linux-gnueabi-
export KERNELDIR=${SYSROOTS}/beagleboard-angstrom-linux-gnueabi/kernel
make -C ${KERNELDIR} M=$(pwd) modules


insmod hello.ko

http://en.wikipedia.org/wiki/User:WillWare/Angstrom_and_Beagleboard