Acnodes FES 5313 - Manual (Page 40)

USB Configuration
This section is used to configure USB.
Legacy USB Support
Enabled
Enables legacy USB.
Auto
Disables support for legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.
EHCI Hand-off
This is a workaround for OSes that does not support EHCI hand-off. The EHCI ownership change
should be claimed by the EHCI driver.
USB transfer time-out
The time-out value for Bulk and Interrupt transfers.
Device reset time-out
Selects the USB mass storage device to start unit command timeout.
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 100 ms, for a Hub port the delay is taken from Hub
descriptor.