Usb configuration – Foxconn A74ML Series User Manual

Page 42

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 :
[High Speed] in 480Mb/s; [Full Speed] in 12Mb/s.

► 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.
If USB devices are connected to the computer, the following item will appear :

► USB Storage Configuration

After pressing , you can set the reset delay for the USB storage device. There are
many different emulation types of this USB device, such as floppy, hard disk and CDROM can
be selected.

USB Configuration

Help Item

Module Version - 2.24.3-13.4

Enables support for

legacy USB.

USB Devices Enabled :

Auto option disables

None

legacy support if

no USB devices are

Legacy USB Support

[Enabled]

connected.

USB 2.0 Controller Mode

[Full Speed]

BIOS EHCI Hand-Off

[Enabled]

► USB Storage Configuration

[Press Enter]

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

F9:Optimized Defaults

[Enabled]