Usb configuration – Avalue ECM-PNV User Manual
Page 55
User
’s Manual
ECM-PNV User
’s Manual
55
3.6.2.7 USB configuration
Use the USB Configuration menu to read USB information and configure settings.
Item
Options
Description
Legacy USB Support
[Enabled]
Enabled (D
EFAULT
)
Disabled,
Auto
Use this option to enable USB mouse and
USB keyboard support. Normally if this option
is not enabled, attached USB mouse or USB
keyboard is not available until a USB
compatible operating system is fully booted
with all USB drivers loaded. When this option
is enabled, any attached USB mouse or USB
keyboard can control the system even when
there is no USB driver loaded onto the
system.
USB 2.0 Controller Mode
[Hi speed]
HiSpeed (480Mbps)
(D
EFAULT
)
FullSpeed (12Mpbs)
This item allows you to select HiSpeed
(480Mbps) or FullSpeed (12Mpbs).
BIOS EHCI Hand-Off [Enabled]
Enabled (D
EFAULT
)
Disabled
This is a workaround for OSs without EHCI
hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Hotplug USB FDD Support
Auto (D
EFAULT
)
The USB FDD is a slim type floppy disk drive
(FDD) with a Universal Serial Bus (USB)
interface.