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EBM-BYT User’s Manual

52 EBM-BYT User’s Manual

Other PCI devices

UEFI only

Legacy only[Default],

Determines OpROM execution policy for

devices other than Network, Storage, or

Video.

3.6.2.11 USB Configuration

The USB Configuration menu helps read USB information and configures USB settings.

Item

Options

Description

Legacy USB Support

Enabled[Default]

Disabled

Auto

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.

XHCI Hand-off

Enabled[Default]

Disabled

This is a workaround for OSew without XHCI

hand-off support. The XHCI ownership change

should be claimed by XHCI driver.

EHCI Hand-off

Enabled

Disabled[Default]

This is a workaround for OSes without EHCI

hand-off support. The EHCI ownership change

should be claimed by EHCI driver.

USB Mass Storage Driver Support

Enabled[Default]

Disabled

Enable/Disable USB Mass Storage Driver

Support.

USB transfer time-out

1 sec

5 sec

10 sec

20 sec[Default]

The time-out value for Control, Bulk, and

Interrupt transfers.

Device reset time-out

10 sec

20 sec[Default]

30 sec

40 sec

USB mass storage device Start Unit command

time-out.

Device power-up delay

Auto[Default]

Manual

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

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