linux驱动学习的资料，包含LED，Platform，网卡，看门狗，input子系统等-linux driver learning materials, including LED, Platform, card, watchdog, input subsystem

实现led驱动程序，跑马灯等功能的实现，配合嵌入式的学习资料。-Implementation of led driver, the realization of the function such as entertaining diversions, cooperate with embedded learning materials.