Advantech SOM-4466, Руководство пользователя

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SOM-4466 User Manual 24
3.2.2.5 USB Configuration
Figure 3.9 USB Configuration
 Legacy USB Support
Enable the support for legacy USB. Auto option disables legacy support if no
USB devices are connected.
 EHCI Hand-Off
This is a workaround for the OS without EHCI hand-off support. The EHCI own-
ership change should claim by EHCI driver.
 USB transfer time-out
Set the time-out value for Control, Bulk, and Interrupt transfers.
 Device reset time-out
Set USB mass storage device Start Unit command and time-out value.
 Device power-up delay
Set the maximum time of 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.
 Mass Storage Devices
USB 2.0 Flash Disk 0. uses "Auto" as default value.