USBTrace : Class Decoding : Mass Storage

Download class decoders

Download USBTrace and class decoders:

Download USBTrace Download USBTrace

Help us to make USBTrace better!
Send us your feedback

USB devices which belong to the Mass Storage Device class can be monitored using the Mass Storage class decoder (Plug-in dll). The decoder can be used to monitor mass storage devices which supports the Bulk-Only Transport protocol.

Both Command Block Wrapper (CBW) & Command Status Wrapper (CSW) of Bulk-Only protocol are decoded and displayed.

The following Command Block Specifications (based on SubClass codes) are supported :

  • SCSI Primary Command Set 3 (SPC3)
  • SCSI Multimeda Command Set 5 (MMC5)
  • SCSI Reduced Block Command Set (RBC)

Image below shows a SCSI Inquiry command block, decoded and displayed by USBTrace.

Mass Storage Class Decoding