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3 usb ports – Kontron COMe-bCD2 User Manual

Page 72

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11 BIOS Setup

Kontron User's Guide ETXexpress® CD

72

11.7.3 USB Ports

Feature

Option

Description

USB Controller

Disabled

Enabled

Controls the whole USB controller. If

disabled, no USB will be available.

USB UHCI Port 3

Disabled

Enabled

Controls USB Port 3 with two connectors.

Port 1 and 2 will always be active.

USB EHCI

Disabled

Enabled

Controls USB 2.0 functionality for all the

ports set to active state.

Legacy USB Support

Disabled

Enabled

Enable support for Universal Serial Bus

EHCI Legacy Support

Disabled

Enabled

This switch enables or disables EHCI support

in legacy mode.

EHCI Handoff Patch

Disabled

Enabled

This patch must be allied if OSes before

WinXP SP2 have problems gaining control

over USB EHCI ports. It should not be

necessary for newer OSes.