Supero 6028R-TT User Manual page 97

Chapter 7: BIOS
XHCI Hand-Off
This is a work-around solution for operating systems that do not support XHCI (Ex-
tensible Host Controller Interface) hand-off. The XHCI ownership change should be
claimed by the XHCI driver. The settings are Enabled and Disabled.
EHCI Hand-Off
This item is for operating systems that do not support Enhanced Host Controller
Interface (EHCI) hand-off. When this item is enabled, EHCI ownership change will
be claimed by the EHCI driver. The settings are Enabled and Disabled.
USB Mass Storage Driver Support
Select Enabled for USB mass storage device support. The options are Disabled
and Enabled.
Port 60/64 Emulation
Select Enabled for I/O port 60h/64h emulation support, which in turn, will provide
complete legacy USB keyboard support for the operating systems that do not sup-
port legacy USB devices. The options are Disabled and Enabled.
USB Transfer Time-outs:
USB Transfer Time-out
This feature is used to set the USB time-out value so that the tasks of USB control,
bulk, and interrupt transfer can be performed during the time-out period. The settings
are 1 second, 5 seconds, 10 seconds, and 20 Seconds.
Device Reset Time-out
This feature is used to set the time-out value for the USB mass storage device
before a start commend is issued to this device. This will provide the time needed
for the system to detect the presence of the device. The options are 10 Seconds,
20 Seconds, 30 Seconds and 40 Seconds.
Device Power-up Delay
Use this feature to set the maximum time allowed for a USB device to wait before
it properly reports itself to the host controller. The options are Auto and Manual.
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