IBASE Technology ASB200-953 User Manual page 73

4.4.11 USB Configuration
BIOS Setting
Legacy USB
Support
XHCI Hand-off
USB Mass
Storage Driver
Support
USB Transfer
time-out
Device reset
time-out
Device power-
up delay
ASB200-953 User Manual
Description
Enabled enables Legacy USB support.

Auto disables legacy support if there is no USB

device connected.
Disabled 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.
Enables / Disables the support for USB mass storage
driver.
The time-out value (1 / 5 10 / 20 secs) for Control, Bulk,
and Interrupt transfers.
Gives seconds (10 / 20 / 30 / 40 secs) to delay
execution of Start Unit command to USB mass storage
device.
Max.time the device will take before it properly reports
itself to the Host Controller. 'Auto' uses default value:
for a Root port it is 100ms, for a Hub port the delay is
taken from Hub descriptor.
BIOS Setup
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