Avalue Technology EMX-BYT2-B1, User Manual

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EMX-BYT2-B1
User’s Manual
54 EMX-BYT2-B1
User’s Manual
3.6.2.14 USB Configuration
The USB Configuration menu helps read USB information and configures USB settings.
Item Options Description
Legacy USB Support
Enabled [Default]
Disabled
Auto
Enables Legacy USB support. AUTO option
disables legacy support if no USB devices are
connected. DISABLE option will keep USB
devices available only for EFI applications.
XHCI Hand-off
Enabled [Default]
Disabled
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership
change should be claimed by XHCI driver.
EHCI Hand-off
Disabled [Default]
Enabled
This is a workaround for OSes without EHCI
hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
USB Mass Storage
Driver Support
Disabled
Enabled [Default]
Enable/Disable USB Mass Storage Driver
Support.
USB transfer time-out
1 sec
5 sec
10 sec
20 sec [Default]
The time-out value for Control, Bulk, and
Interrupt transfers.
Device reset time-out
10 sec
20 sec [Default]
30 sec
40 sec
USB mass storage device Start Unit
command time-out.
Device power-up delay
Auto [Default]
Manual
Maximum time the device will take before it
properly reports itself to the Host Controller.
‘Auto’ uses default value: for a Root port it is
100ms, for a Hub port the delay is taken form