资源介绍
Universal Serial Bus Mass Storage Class
UFI Command Specification
A UFI Device is a removable-media mass storage subsystem, which connects to a Host computer via its
Universal Serial Bus (USB) port. The Host and UFI Device communicate by exchanging Command Blocks,
data, and status information as defined by this specification. The method used to transport this information over
the USB is defined by the Bulk-Only or CBI transport specifications.
A conceptual view of the Host and UFI Device is shown in Figure 1. The UFI device is represented by a USB
Floppy Disk Unit (USB FDU). The UFI device driver software running on the Host controls the UFI device by
sending it UFI command blocks defined by this specification. The UFI Function in the device processes these
command blocks as specified herein.
All exchanges of command block, data, and status information are carried out by the transfer of packets over the
USB. This exchange is managed by the USB Driver on the Host, and the USB Logical Device process in the
USB-FDU.
UFI Command Specification
A UFI Device is a removable-media mass storage subsystem, which connects to a Host computer via its
Universal Serial Bus (USB) port. The Host and UFI Device communicate by exchanging Command Blocks,
data, and status information as defined by this specification. The method used to transport this information over
the USB is defined by the Bulk-Only or CBI transport specifications.
A conceptual view of the Host and UFI Device is shown in Figure 1. The UFI device is represented by a USB
Floppy Disk Unit (USB FDU). The UFI device driver software running on the Host controls the UFI device by
sending it UFI command blocks defined by this specification. The UFI Function in the device processes these
command blocks as specified herein.
All exchanges of command block, data, and status information are carried out by the transfer of packets over the
USB. This exchange is managed by the USB Driver on the Host, and the USB Logical Device process in the
USB-FDU.