39
The optional settings: [Disabled]; [Enabled].
*This item is only supported when
‘ERP Support’
is set as [Disabled].When
‘ERP
Support’
is set as [Enabled],user can only enable or disable ‘
USB(S3)/PS2(S3)
Wake-up
’ .
USB Configuration
Press [Enter] to make settings for the following sub-items:
USB Configuration
Legacy USB Support
The optional settings are: [Enabled]; [Disabled]; [Auto].
[Enabled]:
To enable legacy USB support.
[Disabled]
: To keep USB devices available only for EFI specification,
[Auto]:
To disable legacy support if no USB devices are connected.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by XHCI driver.
The optional settings are: [Enabled]; [Disabled].
EHCI Hand-off
This is a workaround for OSes without EHCI hand-off support. The EHCI
ownership change should be claimed by EHCI driver.
The optional settings are: [Disabled]; [Enabled].
USB Mass Storage Driver Support
The optional settings are: [Disabled]; [Enabled].
USB hardware delay and time-outs:
USB Transfer time-out
Use this item to set the time-out value for control, bulk, and interrupt transfers.
The optional settings are: [1 sec]; [5 sec]; [10 sec]; [20 sec].
Device reset time-out
Use this item to set USB mass storage device start unit command time-out.
The optional settings are: [10 sec]; [20 sec]; [30 sec]; [40 sec].
Device power-up delay
Use this item to set maximum time the device will take before it properly reports