Usb Configuration - IBASE Technology MI988 User Manual

4.4.12

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
MI988 User's Manual
Description
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.
Enables / Disables the support for USB mass
storage driver.
The time-out value for control, bulk, and
Interrupt transfers.
Options: 1 sec / 5 sec / 10 sec / 20 sec
Seconds of delaying execution of start unit
command to USB mass storage device.
Options: 10 sec / 20 sec / 30 sec / 40 sec
The 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
100ms. But for a Hub port, the delay is taken
from Hub descriptor.
Options: Auto / Manual
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BIOS Setup
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