Supero A1SAi-2550F User Manual page 75

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USB Module Version
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USB Devices
Legacy USB Support
This feature enables support for legacy USB devices. Select Auto to disable
legacy support if USB devices are not present. Select Disable to have USB
devices available only for EFI applications. The options are Enabled, Disabled
and Auto.
XHCI Hand-Off
This item is a work-around solution for operating systems that do not support
XHCI (Extensible Host Controller Interface) hand-off. The XHCI ownership
change should be claimed by the XHCI driver. The options are Enabled and
Disabled.
EHCI Hand-Off
This item is for the Operating Systems that do not support Enhanced Host
Controller Interface (EHCI) hand-off. When this item is enabled, EHCI owner-
ship change will be claimed by the EHCI driver. The settings are Disabled and
Enabled.
USB Mass Storage Driver Support
Select Enabled for USB Mass Storage Driver support. The options are Enabled
and Disabled.
Port 60/64 Emulation
This feature enables or disables I/O port 60h/64h emulation support. This fea-
ture should be enabled for complete USB keyboard legacy support for operat-
ing systems that cannot detect the presence of USB devices. The options are
Disabled and Enabled.
USB Hardware Delays and Time-Out
USB Transfer Time-Out
Use the keyboard to enter the time-out value for USB Control/Bulk/Interrupt
transfers. The options are 1 sec, 5 sec, 10 sec, and 20 sec.
Device Reset Time-Out
Use the keyboard to enter time-out value during a USB mass storage device
reset. The options are 10 sec, 20 sec, 30, and 40 sec.
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Chapter 4: AMI BIOS