Advantech ARK-1120, User Manual

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31 ARK-1120 User Manual
Chapter 3
B
IOS Settings

BIOS EHCI Hand-Off
This is a workaround for OS without EHCI hand-off support. The EHCI owner-
ship change should claim by EHCI driver.

Hotplug USB FDD Support
A dummy FDD device is created that will be associated with the hotplugged
FDD later. Auto option creates this dummy device only if there is no USB FDD
present.

USB Mass Storage Device Configuration
Figure 3.18 USB Mass Storage Device Configuration
– USB Mass Storage Reset Delay
Number of seconds POST waits for the USB mass storage device after start
unit command.
– Emulation Type
If Auto, USB devices less than 530MB will be emulated as a floppy drives
and the remaining as hard drives. Force FDD option can be used to force an
FDD formatted drive to boot as FDD (E.g., a. ZIP drive).