LEC-7233 User Manual
39
Feature
Options
Description
Legacy USB Support
Enabled
Disabled
Auto
Enables Legacy USB support.
Auto option disables legacy support if no USB devices
are connected. Disabled option will keep USB devices
available only for EFI applications.
XCHI Legacy Support
Enabled
Disabled
Enable/Disable XHCI Controller Legacy 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
Disabled
Enabled
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 Co
ntroller. ‘Auto’ uses
default
value: for a Root port it is 100 ms, for a Hub port the
delay is taken from Hub descriptor.