1> USB mass storage Class 类协议的介绍
USB Mass Storage Class Specification Overview.. Refer to usb.org
对于USB Mass Storage类设备，USB Mass Storage Working Group<CWG> 支持多种Mass Storage Class specification。如下：
1) USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport
2) USB Mass Storage Class Bulk-Only (BBB) Transport
3) USB Mass Storage Class UFI (UFI) Command Specification
4) USB Mass Storage Class Bootability Specification
5) USB Mass Storage Class Compliance Test Specification
6) USB Lockable Storage Devices Feature Specification (LSD FS)
7) USB Mass Storage Class USB Attached SCSI Protocol (UASP)
其中，
CBI Transport Specification用于Full-speed floppy disk 设备。CBI不会用于High-speed 设备（除Floppy Disk设备外）。Refer to usb.org
2> USB Bulk-Only(BBB) transport
1) USB mass storage Bulk-only transport specification : usbmassbulk-only_10.pdf <附件>
2) USB Bulk-Only Transfer 简单的transfer 数据 说明:
usb-msc-0.2.pdf <附件>
3) SCSI Block Command
SCSI Block Command.pdf <附件>
