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5.3.5
USB Configuration
Legacy USB Support
Enables USB legacy support. AUTO option disables legacy support if no USB
devices are connected.
EFI applications.
Enabled / Disabled / Auto
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership
change should be claimed by XHCI driver.
Enabled / Disabled
USB Mass Storage Driver Support
Enable/Disable USB Mass Storage Driver Support.
Disabled / Enabled
Port 60/64 Emulation
Enable I/O port 60h/64h emulation support. This should be enabled for the complete
USB keyboard legacy support for non-USB aware OSes.
Disabled / Enabled
DISABLE option will keep USB devices available only for
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