的flpydisk示例是一个软盘驱动器驻留在目录 ntddksrcst…

代码说明：

The flpydisk sample is a floppy driver that resides in the directory NtddkSrcStorageFdcFlpydsk. It is similar to a class driver in that it sits a level above the floppy disk controller in the driver stack, and brokers communication between the application level and the low-level driver. The floppy driver takes commands from the application and then calls routines in the controller which will in turn perform the actual interaction with the device. The sample compiles in 64-bit, but has not been tested in this environment. It is compatible with x86 and Alpha platforms.