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MIO-5271 User Manual
Chapter 3
A
MI BIOS
Setup
3.3.11
USB Configuration
Figure 3.14 USB Configuration
Legacy USB Support
Enable the support for legacy USB. Auto option disables legacy support if no USB
devices are connected.
USB3.0 Support
This item allows users to enable or disable USB3.0 support.
XHCI Hand-Off
This is a workaround for the OS without XHCI hand-off support. The XHCI ownership
change should claim by XHCI driver.
EHCI Hand-Off
This is a workaround for the OS without EHCI hand-off support. The EHCI ownership
change should claim by EHCI driver.
USB transfer time-out
Set the time-out value for Control, Bulk, and Interrupt transfers.
Device reset time-out
Set USB mass storage device Start Unit command time-out value.
Device power-up delay
Set the maximum time of 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.
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