Tangent Rugged E3, Руководство пользователя

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3.3.10 USB Configuration
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Legacy USB Support
This item allows you to select <Enabled>, <Disabled> or <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.
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XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be
claimed by XHCI driver. Select <Enabled> or <Disabled>.
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USB Mass Storage Driver Support
Enables or disables support for USB storage devices.
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Port 60/64 Emulation
This feature enables or disables I/O port 60h/64h emulation support. This should be enabled for
complete USB keyboard legacy support for non-USB-aware Operating Systems.
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USB Transfer time-out
Use this item to set the time-out value for control, bulk, and interrupt transfers. Select <1 sec>, <5
sec>, <10 sec> or <20 sec>.
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Device reset time-out
Use this item to set USB mass storage device start unit command time-out. Select <10 sec>, <20 sec>,
<30 sec> or <40 sec>.
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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.
Chapter 4: BIOS Setup
Rugged E3 l User’s Manual