Nexcom NSA 7136 User Manual page 52

Chapter 4: BIOS Setup
USB Configuration
This section is used to configure the USB.
Aptio Setup Utility - Copyright (C) 2015 American Megatrends, Inc.
Advanced
USB Configuration
USB Module Version 8.11.02
USB Devices:
1 Keyboard, 2 Hubs
Legacy USB Support [Enabled]
XHCI Hand-off [Enabled]
EHCI Hand-off [Disabled]
USB Mass Storage Driver [Enabled]
Port 60/64 Emulation [Enabled]
USB hardware delays a
USB transfer time-out [20 sec]
Device reset time-out [20 sec]
Device power-up delay [Auto]
Version 2.17.1245. Copyright (C) 2015 American Megatrends, Inc.
Legacy USB Support
Enable Enables Legacy USB.
Auto Disables support for Legacy when no USB devices are connected.
Disable Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSs that does not support XHCI hand-off. The
XHCI ownership change should be claimed by the XHCI driver.
Copyright © 2017 NEXCOM International Co., Ltd. All Rights Reserved.
EHCI Hand-Off
This is a workaround for OSs that does not support EHCI hand-off. The EHCI
ownership change should be claimed by the EHCI driver.
USB Mass Storage Driver
Enables or disables USB mass storage device driver support.
Enables Legacy USB support.
AUTO option disables legacy
support if no USB devices are
connected. DISABLE option will
Port 60/64 Emulation
keep USB devices available
only for EFI applications.
Enables the 60h/64h I/O port emulation. You must enable this to fully
support USB keyboard legacy for non-USB OSes.
USB Transfer Time-out
The time-out value for control, bulk, and Interrupt transfers.
→←: Select Screen
↑↓: Select Item
Device Reset Time-out
Enter: Select
+/-: Change Opt.
Selects the USB mass storage device's start unit command timeout.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
Device Power-up Delay
ESC: Exit
Maximum time the value will take before it properly reports it self 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.
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NSA 7136 User Manual