Kontron KTQ77/Flex User Manual page 89

KTD-N0848-B
Function
Legacy USB Support
USB3.0 Support
XHCI Hand-off
EHCI Hand-off
USB Mass Storage Driver
Support
USB transfer time-out
Device reset time-out
Device power-up delay
Page 89
Selection
Enabled
Disabled
Auto
Enabled
Disabled
Enabled
Disabled
Disabled
Enabled
Enabled
Disabled
1 sec
5 sec
10 sec
20 sec
10 sec
20 sec
30 sec
40 sec
Auto
Manual
BIOS - Advanced
Description
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.
Enable/Disable USB3.0 (XHCI) Controller
support.
This is a workaround for OSes without XHCI
hand-off support.
The XHCI ownership change should be
claimed by XHCI driver.
This is a workaround for OSes without EHCI
hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Enable/disable USB Mass Storage Driver
Support.
The time-out value for Control, Bulk, and
Interrupt transfers.
USB mass storage device Start Unit
command time-out.
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.
KTQ77/Flex Users Guide