ADLINK Express-CVC - Manual (Page 55)

Express-CVC Page 55
6.3.7. USB Configuration
Legacy USB Support
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. Set this value to Enable/Disable/Auto.
EHCI Hand-off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change should be claimed by EHCI driver. Set this value
to Enabled/Disabled.
USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers. Set this value to 1 sec / 5 sec / 10 sec / 20 sec.
Device reset time-out
USB mass storage device Start Unit command time-out. Set this value to 10 sec / 20 sec / 30 sec / 40 sec.
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. Set this value to Auto/Manual.