Avalue ECM-A50M Bedienungsanleitung PDF herunterladen (Seite 50)

ECM-A50M User’s Manual

50 ECM-A50M User’s Manual

3.6.2.5 USB Configuration

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

USB.

Item

Options

Description

Legacy USB support

Enabled

Disabled

Auto

Enables Legacy USB support.

AUTO disables legacy support if no USB

devices are connected. DISABLE will keep

USB devices available only for EFI

applications.

ECHI hand-off

Enabled

Disabled

This is a workaround for OSes without EHCI

hand-off support. The EHCI ownership change

should be claimed by EHCI driver.

USB transfer time-out

1sec / 5sec

10sec / 20sec

The time-out value for Control, Bulk, and

Interrupt transfers.

Device reset time-out

10sec / 20sec

30sec / 40sec

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

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

Hub descriptor.

Device power-up delay in

seconds

1~40

Delay range is 1~40 seconds, in one second

increments.

JetFlashTranscend 4GB 1100

Auto

Floppy

Forced FDD

Hard-disk

CD-ROM

Mass storage device emulation type. “AUTO”

enumerates devices according to their media

format. Optical drives are emulated as

“CDROM”, drives with no media will be

emulated according to a drive type.

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