Kontron KTQ77-FLEX - Manual (Page 89)

KTQ77/Flex Users Guide
KTD-N0848-C Page 89
Function Selection Description
Legacy USB Support
Enabled
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.
USB3.0 Support
Enabled
Disabled Enable/Disable USB3.0 (XHCI) Controller
support.
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
Disabled
Enabled
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/disable USB Mass Storage Driver
Support.
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.
BIOS - Advanced