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ECM-QB User’s Manual

ECM-QB User’s Manual 43

3.6.2.5 USB Configuration

The USB configuration menu is used to read USB configuration information and configure

the USB setting.

Item

Options

Description

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

EHCI Hand-off

Disabled

Enabled

This is a workaround for OSes without

hand-off support. The EHCI ownweship

change should be claimed by EHCI driver.

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 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 100ms, For a Hub port the

delay is taken from Hub descriptor.

Device power-up delay in

seconds

1~40seonds

Delay range is 1..40 seconds, in one

second increments

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 66 67

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Avalue ECM-QB Manual de usuario Pagina 43

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