TYAN S5530 User Manual page 63

3.3.8 USB Configuration
Legacy USB Support
Enable USB legacy support. AUTO option disables legacy support if no USB
devices are connected. DISABLE option will keep USB devices available only for
EFI applications.
Enabled / Disabled / Auto
USB3.0 Support
Enable/disable USB3.0 (XHCI) Controller support.
Enabled / Disabled
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
EHCI Hand-off
This is a workaround for OSes without DHCI hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Enabled / Disabled
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