Enables Legacy USB support.
“Auto” disables legacy support if there is no
USB device connected.
“Disable” keeps USB devices available only
for EFI applications.
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership
change should be claimed by XHCI driver.
USB Mass Storage
Driver Support
Enables / Disables the support for USB
mass storage driver.
Enables I/O port 60h/64h emulation support.
This should be enabled for the complete
USB keyboard legacy support for non-USB
aware OSes.
The time-out value for Control, Bulk, and
Interrupt transfers.
Seconds of delaying execution of start unit
command to USB mass storage device.
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