该文件包含了Linux编程的很多例程包括了多任务编程，多任务间的通信和同步，CAN总线驱动，SD卡驱动等，涵盖面广阔，对于了解Linux编程很有帮助-This file contains a lot of Linux programming routines include multi-task programming, multi-task communication and synchronization between, CAN bus driver, SD card driver and

这是一个关于linux下基于PCI总线的SD卡驱动方面的好资料，对驱动开发很有用。-This is a linux based on the PCI bus driver SD card good information, very useful for driver development.

SD control register space size is 0x200, 0x400 for bus.