Advantech DS-270, Руководство пользователя

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25 DS-270 User Manual
Chapter 3
B
IOS Settings
 USB Configuration
USB Configuration Parameters
– Legacy USB Support
Enable/disable legacy USB support. The AUTO option disables legacy sup-
port if no USB devices are connected. The DISABLE option renders USB
devices only available for EFI applications.
– XHCI Hand-Off
This is a workaround for OS without XHCI hand-off support. The XHCI own-
ership change should be claimed by the XHCI driver.
– EHCI Hand-Off
This is a workaround for OS without EHCI hand-off support. The EHCI own-
ership change should be claimed by the EHCI driver.
– USB Mass Storage Driver Support
Enable/disable USB mass storage driver support
– USB Transfer Timeout
Allows users to specify the timeout value for Control, Bulk, and Interrupt
transfers. The value options available are 1, 5, 10, and 20 seconds.
– Device Reset Timeout
Allows users to specify the USB mass storage device Start Unit Command
timeout value. The value options available are 10, 20, 30, and 40 seconds.
– Device Power-Up Delay
Allows auto/manual configuration of the USB mass storage device Start Unit
Command timeout value.
Figure 3.9 USB Configuration setup screen