beautypg.com

ADLINK nanoX-TC User Manual

Page 38

background image

nanoX-TC User’s Manual

Page 38

8.4.4 USB Configuration

Legacy USB Support

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. Set this
value to Enabled/Disabled/Auto.

EHCI Hand-off

This is a workaround for OS without EHCI hand-off support. The EHCI ownership change
should be claimed by EHCI driver. Set this value to Enabled/Disabled.

USB transfer time-out

The time-out value for control, bulk, and interrupt transfers.Set this value to 1 sec / 5 sec /
10 sec / 20 sec.

Device reset time-out

USB mass storage device start unit command time-out. Set this value to 10 sec / 20 sec / 30
sec / 40 sec.

Device power-up delay

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 100 ms, for a hub port the delay is taken from hub
descriptor. Set this value to Auto/Manual.