C&T Solution CT-DBX0x, Руководство пользователя

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CT-DBT0X l User’s Manual
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Chapter 5: System BIOS
5.1.12 USB Configuration
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.
XHCI Hand-off: This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change should be claimed by XHCI driver.
EHCI Hand-off: 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: Enable/Disable USB Mass Storage Driver Support.
USB transfer time-out: The time-out value for Control, Bulk, and Interrupt transfers.
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 reports itself to
the Host Controller. “Auto” uses default value: for a Root port it is 100ms, for a Hub port the
delay is taken from Hub descriptor.