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FW-8894 User Manual
Item
Legacy USB Support
XHCI Hand-off
EHCI Hand-off
USB Mass Storage
Driver Support
Port 60/64 Emulation
USB transfer time-out
Value
Enables Legacy USB support.
Enabled
AUTO option disables legacy support if no USB
Disabled
devices are connected.
Auto
DISABLE option will keep USB devices available only
for EFI applications.
This is a workaround for OSes without XHCI hand-off
Enabled
support. The XHCI ownership change should be
Disabled
claimed by XHCI driver.
This is a workaround for OSes without EHCI hand-off
Enabled
support. The EHCI ownership change should be
Disabled
claimed by EHCI driver.
Enabled
Enable/Disable USB Mass Storage Driver Support.
Disabled
This feature enables I/O port 60h/64h emulation
Enabled
support. This should be enabled for complete USB
Disabled
keyboard legacy support for non-USB aware
Operating Systems.
1 sec
5 sec
The time-out value for Control, Bulk, and Interrupt
10 sec
transfers.
20 sec
60
Description
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