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USB Configuration
This section is used to configure the parameters of the USB device.
Legacy USB Support
Enabled
Enables legacy USB.
Auto
Disables support for legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership
change should be claimed by XHCI driver.
EHCI Hand-off
This is a workaround for OSes that does not support EHCI hand-off. The EHCI owner-
ship change should be claimed by the EHCI driver.
Chapter 7 BIOS Setup
Chapter 7
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be enabled for the complete USB
keyboard legacy support for non-USB aware OSes.
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