Chapter 3 – DFI BT253 User Manual

Page 35

Chapter 3

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Chapter 3 BIOS Setup

USB Configuration

This section is used to configure the parameters of USB device.

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.

USB Confi guration

USB Module Version

USB Devices:
1 Hub

Legacy USB Support

XHCI Hand-off
EHCI Hand-off
USB Mass Storage Driver Support

Advanced

8.11.01

[Enabled]

[Enabled]
[Enabled]
[Enabled]





Enter:
+/-:
F1:
F2:
F4:
ESC:

Select Screen
Select Item
Select
Change Opt.
General Help
Previous Values
Save & Reset
Exit

Legacy USB Support

Enabled

Enable legacy USB.
Disabled

Keep USB devices available only for EFI applications.

Auto

Disable support for legacy when no USB devices are connected.

XHCI Hand-off

This is a workaround for OSes without the XHCI hand-off support. The change of XHCI

ownership should be claimed by the EHCI driver.

EHCI Hand-off

This is a workaround for OSes without the EHCI hand-off support. The change of EHCI

ownership should be claimed by the EHCI driver.

USB Mass Storage Driver Support

Enable or disable the support of the USB Mass Storage Driver.

Important:

When installing Windows 7, only native USB 2.0 devices (USB port 0 to USB port 3)

can operate under DOS mode. Please refer to the following tables for more infomation

on the type of USB ports.

Operation

Environment

for Customers

DOS

Windows 7

Windows 8.x

Linux

OS Selection

in the BIOS

Advanced Menu

Windows 8.x

Windows 7

Windows 8.x

Available USB

ports

All

When installing Windows 7 fi rst

time, only native USB 2.0 ports

can work. Please refer to the

USB type in table 2 below.

All

Table 1. OS Selection

Model Name

BT253

USB 3.0

Native

USB 0

Native

USB 1

Native

USB 2

Native (share with USB 3.0 port)

USB 3

Native

USB 4

HSIC port 0

USB 5

HSIC port 1

USB 6

HSIC port 2

USB 7

HSIC port 3

Table 2. The Type of USB Ports