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Chapter 4: BIOS Setup
4.3.12 USB Configuration
Item
Legacy USB Support
XHCI Hand-off
USB Mass Storage
Driver Support
USB transfer time-out
Device reset time-out
Device power-up
delay
Options
Enabled[Default]
Disabled
Auto
Enabled[Default]
Disabled
Enabled[Default]
Disabled
1 sec ,
5 sec ,
10 sec ,
20 sec[Default]
10 sec ,
20 sec[Default] ,
30 sec,
40 sec
Auto[Default]
Manual
VCO-6131E-4M2 l User's Manual
Description
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.
This is a workaround for OSew without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
Enable/Disable USB Mass Storage Driver
Support.
The time-out value for Control, Bulk, and
Interrupt transfers.
USB mass storage device Start Unit command
time-out.
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
Hub descriptor.
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