IBASE Technology IB915F, User Manual, Page: 42 / 71

BIOS SETUP
38 IB915 User’s Manual
USB Configuration
Aptio Setup Utility – Copyright © 2016 American Megatrends, Inc.
Main
Advanced
Chipset Boot Security Save & Exit
USB Configuration
→ ←
Select Screen
↑↓
Select Item
Enter: Select
+- Change Field
F1: General Help
F2: Previous Values
F3: Optimized Default
F4: Save
ESC: Exit
USB Module Version 12
USB Controllers:
1 XHCI
USB Devices:
1 Keyboard, 1Mouse
Legacy USB Support [Enabled]
XHCI Hand-off [Disabled]
USB MASS Storage Driver Support [Enabled]
Port 60/64 Emulation [Enabled]
USB hardware delays and time-outs:
USB Transfer time-out [20 sec]
Device reset tine-out [20 sec]
Device power-up delay [Auto]
Legacy USB Support
Enables Legacy USB support.
AUTO option disables legacy support if no USB devices are connected.
DISABLE option keeps USB devices available only for EFI
applications.
XHCI Hand-off
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
Enable/Disable USB Mass Storage Driver Support.
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be enabled for
the complete USB keyboard legacy support for non-USB aware 0Ses.
USB Transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.
Device reset time-out
USB mass Storage device start Unit command time-out.