OXY5320A 3.5” SBC User’s Manual V1.2
www.perfectron.com
4.4.8 USB Configuration
This option allows the user to view and configure the settings of the USB configuration
parameters.
USB Devices
Legacy USB Support
This enables Legacy USB Support, the following tables outlines the different modes of
this feature:
Option
Description
Auto
This option disables legacy support if no USB devices are connected
Enable
This option will enable Legacy USB support.
Disable
This option will keep USB devices available only for EFI applications.
Legacy USB Support
Enable the support for legacy USB. Auto option disables legacy support if no
USB devices are connected.
EHCI Hand-off
This is a workaround feature for Operating Systems without EHCI hand-off support. The
EHCI ownership must be claimed by EHCI Driver.
Option
Description
Enable
This option enables EHCI hand-off support.
Disable
This option disables EHCI hand-off support.
USB transfer time-out
Set the time-out value for Control, Bulk, and Interrupt transfers.
Device reset time-out
Set USB mass storage device Start Unit command time-out value.
26