User`s manual

SHB108 LAG1155 Full-Size SBC User’s Manual

AMI BIOS Utility

 USB Configuration

You can use this screen to select options for the USB Configuration,

and change the value of the selected option. A description of the

selected item appears on the right side of the screen.

 Legacy USB Support

Use the legacy usb support bios option to enable USB mouse

and USB keyboard support. Normolly if this option is not enable,

any attach usb mouse or USB keyboard does not become

available until a USB compatible operation system is full booted

with all USB drivers loaded.When this option is enable, any

attach USB mouse or USB keyboard can control the system even

when there is no USB driver loaded onto the system.

 EHCI Hand-off

This is a workaround for OSes without EHCI hand-off support.

The EHCI ownership change should be claimed by EHCI driver.