Owner's manual

SEMX-H81 User’s Manual
SEMX-H81 User’s Manual 31
3.6.2.2.1 USB Configuration
Item
Options
Description
Legacy USB Support
Enabled[Default]
Disabled
Auto
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.
XHCI Hand-off
Disabled
Enabled[Default]
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by CHCI driver.
EHCI Hand-off
Disabled[Default]
Enabled
This is a workaround for OSes without EHCI
hand-off support. The EHCI ownership change
should be claimed by EHCI driver.