Avnet Qseven MSC Q7-BT - USB Configuration

MSC Q7-BT MSC_Q7-BT_User_Manual.pdf 70 / 113
7.8.15 USB Configuration
Table 7-21 BIOS USB Configuration
Feature
Options
Description
Legacy USB support
Auto
Enabled
Disabled
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
Disabled
This is a workaround for OSes without XHCI hand-off support. The
XHCI ownership change should be claimed by XHCI driver.
EHCI Hand-off
Enabled
Disabled
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
Disabled
Enable/Disbale USB Mass Storage Driver Support.
Port 60/64 Emulation
Enabled
Disabled
Enables I/O port 60h/64h emulation support. This should be
enabled for the complete USB keyboard legacy support for non-
USB aware OSes.
USB transfer time-out
1 sec
5 sec
10 sec
20 sec
The time-out value for Control, Bulk, and Interrupt transfers.
Device reset time-out
10 sec
20 sec
30 sec
40 sec
USB mass storage device Start Unit command time-out.
Device power-up delay
Auto
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 100 ms, for a Hub port
the delay is taken from Hub descriptor.
Device power-up delay
Value 1-40
Delay range is 1…40 seconds, in one second increments.