Advantech SOM-5871, User Manual

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SOM-5871 User Manual 62
3.1.2.18 USB Configuration
Feature Options Description
Legacy USB Support
Enabled
Disabled
Auto
Enables 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
Enabled
Disabled
This is a workaround for OS without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage Driver
Support Enabled
Disabled Enable/Disable USB mass storage driver sup-
port.
USB transfer time-out
1 sec
5 sec
10 sec
20 sec
The time-out value for control, bulk, and inter-
rupt transfers.
Device reset time-out
10 sec
20 sec
30 sec
40 sec
USB mass storage device Start Unit command
time-out.
Device power-up delay
Auto
Manual
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.