Usb: Storage Device; Usb: Unsupported Device; Usb: More Than Three Storage Devices; Usb: More Than Four Hubs - Epson S1R72U16 Support Manual

4. History Data Details
4.2.5

USB: storage device

This history entry is recorded if a supported storage device connection is detected.
4.2.6

USB: unsupported device

This history entry is recorded if an unsupported storage device connection is detected.
4.2.7

USB: more than three storage devices

This history entry is recorded if a third or subsequent supported storage devices are
detected. Up to two storage devices may be connected to the LSI.
4.2.8

USB: more than four hubs

This history entry is recorded if a fourth or subsequent USB hubs are detected. Up to three
USB hubs may be connected to the LSI.
4.2.9

USB: phase err

This history entry is recorded if a problem occurs in the protocol with the storage device.
4.2.10

USB: CBW

This history entry is recorded when a command-issuing CBW is issued as defined for Mass
Storage Class.
4.2.11

USB: Data IN

This history entry is recorded when Bulk IN is issued at the start of the data transfer (USB
device to USB host) for a command issued using CBW. A single history entry is recorded
for the entire data stream rather than for individual packets.
4.2.12

USB: Data OUT

This history entry is recorded when Bulk OUT is issued at the start of the data transfer
(USB host to USB device) for a command issued using CBW. A single history entry is
recorded for the entire data stream rather than for individual packets.
4.2.13

USB: CSW

This history entry is recorded on receiving a command status reception CSW as defined for
Mass Storage Class. This is the status for commands issued using CBW and indicates that
the protocol is complete.
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EPSON
S1R72U16 Development Support
Manual (Rev.2.00)