Supero SuperServer 6028R-TR, User Manual

Page: 95 / 126

Chapter 7: BIOS
7-13
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.