Chapter 3: Software Setup
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Enables Legacy USB support.
Auto option disables legacy support if
no USB devices are connected;
Disabled option will keep 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 or disables USB Mass Storage
Driver Support.
1 sec
5 sec
10 sec
20 sec
The time-out value for Control, Bulk, and
Interrupt transfers
1 sec
5 sec
10 sec
20 sec
USB mass storage device Start Unit
command time-out
Maximum time the device will take
before it properly reports itself to the
Host Controller. Auto uses default value:
for a Root port, it is 100 ms, for a Hub
port the delay is taken from Hub
descriptor.