Advantech ASMB-822I User Manual page 53

3.2.2.7 USB Configuration
 Legacy USB Support
This is for supporting USB device under a legacy OS such as DOS. When
choosing "AUTO", the system will automatically detect if any USB device is
plugged into the computer and enable USB legacy mode when a USB device is
plugged and disable USB legacy mode when no USB device is plugged.
USB3.0 support

Enable/disable USB3.0(XHCI) controller support.
 XHCI Hand-off
This is a workaround for OS without XHCI hand-off support.
The XHCI ownership change should be claimed by XHCI driver.
 EHCI Hand-off
This is a workaround for OS without EHCI hand-off support.
The EHCI ownership change should be claimed by EHCI driver.
USB Transfer Time-out

Selects the USB transfer time-out value. [1,5,10,20sec]
 Device Reset Time-out
Selects the USB device reset time-out value. [10,20,30,40 sec]
 Device Power-up Delay
This item appears only when Device power-up delay item is set to [manual].
 Mass Storage Devices
This item appears only when plugging in a USB flash device. User can choose
"Auto", "Floppy", "Forced FDD", "Hard Disk" and "CD-ROM" to simulate USB
flash device.
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