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3.3.6 USB Configuration
Legacy USB Support
Enable or disable Legacy OS Support for USB 2.0 devices. If you encoun-
ter USB compatibility issues it is recommended to disable legacy USB
support. Select UEFI Setup Only to support USB devices under the UEFI
setup and Windows/Linux operating systems only.
PS/2 Simulator
Enable PS/2 Simulator. This should be enabled for the complete USB
keyboard legacy support for non-USB aware OSes.
* Enable this option if you install Windows 7.
Third Party USB 3.1 Controller
Enable/disable the third party USB 3.1 controllers.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by XHCI driver.
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