Supermicro X10SRM-F - Page 89

Chapter 4: BIOS
89
• USB Devices
Legacy USB Support
This feature enables support for legacy USB devices. Select Auto to disable legacy support
if USB devices are not present. Select Disable to have USB devices available only for EFI
applications. The options are Enabled, Disabled, and Auto.
XHCI Hand-Off
This item is a work-around solution for operating systems that do not support XHCI
(Extensible Host Controller Interface) hand-off. The XHCI ownership change should be
claimed by the XHCI driver. The options are Enabled and Disabled.
EHCI Hand-Off
This item is for the Operating Systems that do not support Enhanced Host Controller
Interface (EHCI) hand-off. When this item is enabled, EHCI ownership change will be
claimed by the EHCI driver. The settings are Enabled and Disabled.
Port 60/64 Emulation
This feature enables or disables I/O port 60h/64h emulation support. This should be enabled
for complete USB keyboard legacy support for non-USB-aware Operating Systems. The
options are Disabled and Enabled.
USB 3.0 Support
Select disabled to use USB 3.0 ports of the EHCI controller, or select the other options to
use the XHCI controller. The options are Smart Auto, Auto, Enabled, and Disabled.
EHCI1
Select Enabled to enable EHCI (Enhanced Host Controller Interface) support on USB 2.0
connector #1 (at least one USB 2.0 connector should be enabled for EHCI support). The
options are Disabled and Enabled.
EHCI2
Select Enabled to enable EHCI (Enhanced Host Controller Interface) support on USB 2.0
connector #2 (at least one USB 2.0 connector should be enabled for EHCI support). The
options are Disabled and Enabled.
XHCI Pre-Boot Driver
Select Enabled to enable XHCI (Extensible Host Controller Interface) support on a pre-boot
drive specied by the user. The options are Enabled and Disabled.