提供了一个对mpu401芯片的接口的midi uart miniport的wdm驱动程序，对于音频设备驱动程序开发人员来说，值得研究

MINI FM miniport驱动，开发工具：winddk-This sample is a MIDI FM miniport driver. This sample provides an interface to a device that implements OPL3-style FM synthesis. The MIDI port driver serves as a wrapper for this miniport driver. Because the sample is a

USB Device Class Definition for MIDI Devices.