Nexcom DNA 1150 User Manual download pdf (Page 56)

DNA 1150 User Manual

Chapter 4: BIOS Setup

Advanced

→←: Select Screen

↑↓: Select Item

Enter: Select

+/-: Change Opt.

F1: General Help

F2: Previous Values

F3: Optimized Defaults

F4: Save & Exit

ESC: Exit

Enables Legacy USB support.

AUTO option disables legacy

Support if no USB devices are

connected. DISABLE option will

keep USB devices available

only for EFI applications.

USB Conguration

USB Module Version

USB Devices:

1 Keyboard, 1 Hub

Legacy USB Support

EHCI Hand-off

USB Mass Storage Driver

USB hardware delays a

USB transfer time-out

Device reset time-out

Device power-up delay

8.10.27

[Enabled]

[Disabled]

[Enabled]

[20 sec]

[Auto]

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.

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 Configuration

This section is used to configure the USB.

USB Mass Storage Driver Support

Enables or disables USB mass storage driver support.

USB Transfer Time-out

The time-out value for control, bulk, and Interrupt transfers.

Device Reset Time-out

Selects the USB mass storage device’s start unit command timeout.

Device Power-up Delay

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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Nexcom DNA 1150 User Manual Page 56

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