Usb configuration – Foxconn H55A User Manual

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USB Configuration

► Legacy USB Support

This item is used to enable the support for USB devices on legacy OS. If you have a USB
keyboard or mouse, set to auto or enabled.

► USB 2.0 Controller Mode

This item is used to set the transmission rate mode of USB 2.0. The available settings are :
[HiSpeed] in 480Mbps; [Full Speed] in 12Mbps.

► BIOS EHCI Hand-Off

Windows XP supports a number of features in the Enhanced Host Controller Interface (EHCI)
specification, but there are a few features that are not implemented. Microsoft said preliminary
support for EHCI BIOS handoff will be available in Windows XP SP2.
This item allows you to enable support for OS without EHCI hand-off feature.
This is a workaround for OS without EHCI hand-Off support .
The EHCI ownership change should claim by EHCI driver.

USB Configuration

Help Item

Module Version - 2.24.5-13.4

USB Devices Enabled :

2 Hubs

Legacy USB Support

USB 2.0 Controller Mode

[HiSpeed]

BIOS EHCI Hand-Off

[Enabled]

↑↓←→:Move Enter:Select +/-/:Value F10:Save ESC:Exit F1:General Help

F9:Optimized Defaults

[Enabled]

Enables support for

legacy USB. AUTO

option disables

legacy support if

no USB devices are

connected.