这是基于mini2440的二维码扫描程序，包含linux的按键，LED驱动还有二维码编解码，内容较多，对于初学者来说可能难度较大，但是是难得的学习资料-This is based on two-dimensional code scanner mini2440, including linux buttons, LED driver also two-dimensional code codec, more content, may be more difficult for beginners

嵌入式Linux上实现usb扫描枪驱动-Implement usb scanner driver on embedded Linux! !