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3.6.2.11 USB Configuration
The USB Configuration menu helps read USB information and configures USB settings.
Item
Legacy USB Support
XHCI Hand-off
USB Mass Storage Driver Support
USB transfer time-out
Device reset time-out
Device power-up delay
Mass Storage Devices
Options
Enables Legacy USB support. AUTO option
Enabled[Default]
disables legacy support if no USB devices are
Disabled
connected. DISABLE option will keep USB
Auto
devices available only for EFI applications.
This is a workaround for OSes without XHCI
Disabled
hand-off support. The XHCI ownership change
Enabled[Default]
should be claimed by XHCI driver.
Disabled
Enable/Disable USB Mass Storage Driver
Enabled[Default]
Support.
1 sec
5 sec
The time-out value for Control, Bulk, and Interrupt
10 sec
transfers.
20 sec[Default]
10 sec
20 sec[Default]
USB mass storage device Start Unit command
30 sec
time-out.
40 sec
Maximum time the device will take before it
properly reports itself to the Host Controller. 'Auto'
Auto[Default]
Manual
uses default value: for a Root port it is 100ms, for
a Hub port the delay is taken form Hub descriptor.
Mass storage device emulation type. 'AUTO'
Auto[Default]
Floppy
enumerates devices according to their media
format. Optical drives are emulated as 'CDROM',
Forced FDD
Hard Disk
drives with no media will be emulated according
CD-ROM
to a drive type.
User's Manual
Description
ECM-APL2 User's Manual 43
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