Advantech TPC-xx51T-x3BE Series User Manual page 74

 Legacy USB Support
Enables support for legacy USB. Auto option disables legacy support if no USB
devices are connected. DISABLE option will keep USB devices available only
 XHCI Hand-Off
This is a workaround for OS without XHCI hand-off support. The XHCI owner-
ship change should claim by XHCI driver.
 EHCI Hand-Off
This is a workaround for OS without EHCI hand-off support. The EHCI owner-
ship change should claim by EHCI driver.
 USB Mass Storage Driver Support
This item allows you to enable or disable the USB mass storage device support.
Device reset time-out

USB mass storage device start unit command time-out.
 Device power-up delay
Maximum time the device will take before it properly report itself to the host con-
troller. "Auto" uses default value: for a Root port it is 100 ms, for a Hub port the-
delay is taken from Hub descriptor.
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