5 usb, 1 usb > chipset usb configuration – ADLINK ETX-BT User Manual

Page 58

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Page 58

9.3.5

USB

Feature

Options

Description

USB Info

only

USB Module Version

Info only

USB Devices

Info only

X drive, x keyboards, x mouse, x hubs

Legacy USB Support

Enabled
Disabled
Auto

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 and setup.

XHCI Hand-off

Enabled
Disabled

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

The XHCI ownership change should be claimed by the XHCI

OS driver.

EHCI Hand-off

Enabled
Disabled

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

The EHCI ownership change should be claimed by the EHCI
OS driver.

USB Mass Storage Driver Support

Enabled
Disabled

Enable/Disable USB Mass Storage Driver Support.

Chipset USB Configuration

Submenu

USB hardware delays and time-outs:

Info only

USB transfer time-out

1 sec
5 sec
10 sec
20 sec

The time-out value for Control, Bulk, and Interrupt transfers

Device reset time-out

10 sec
20 sec
30 sec
40 sec

USB mass storage device Start Unit command time-out.

Device power-up delay

Auto
Manual

Maximum time the device will take before it properly reports
itself to the Host Controller. 'Auto' uses default value: for a

Root port it is 100 ms, for a Hub port the delay is taken from

Hub descriptor.

Mass Storage Devices

Info only

List current USB max storage device.

9.3.5.1 USB > Chipset USB Configuration

Feature

Options

Description

USB Configuration

Info only

XHCI Mode

Enabled
Disabled
Auto
Smart Auto

Mode of operation of xHCI controller.

USB 2.0(EHCI) Support

Disabled
Enabled

Control the USB EHCI (USB 2.0) functions. One EHCI
controller must always be enabled.

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