Nexcom NSA 5190 User Manual page 52

Chapter 3: BIOS Setup
USB Configuration
This section is used to configure the USB.
Legacy USB Support
Enable Enables Legacy USB.
Auto Disables support for Legacy when no USB devices are connected.
Disable Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSs that does not support XHCI hand-off. The
XHCI ownership change should be claimed by the XHCI driver.
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USB Mass Storage Driver Support
Enables or disables USB mass storage driver support.
USB transfer time-out
The time-out value for control, bulk, and Interrupt transfers.
Device reset time-out
Selects the USB mass storage device's start unit command timeout.
Device power-up delay
Maximum time the value 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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NSA 5190 User Manual