Portwell ROBO-8122VG2R, User Manual

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ROBO-8122VG2R
Copyright © Portwell 2017 ROBO-8122VG2R User's Guide 60
Feature Description Options
xHCI Mode Mode of operation of xHCI controller.
★
Auto, Smart Auto, Enabled,
Disabled
Legacy USB Support
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.
★
Enabled, Disabled, Auto
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
★
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.
★
Disabled, Enabled
USB Mass Storage Driver
Support
Enable/Disable USB Mass Storage Driver Support.
★
Enable, Disabled
USB transfer time-out The time-out value for Control, Bulk, and Interrupt transfers.
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20 sec, 1 sec, 5 sec, 10 sec
Device reset time-out USB mass storage device Start Unit command time-out.
★
20 sec, 10 sec, 30 sec,
40 sec
Devices power-up delay
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.
★
Auto, Manual