Avalue ENX-CDD - Manual (Page 34)

ENX-CDD User ’s Manual
34 ENX-CDD User ’s Manual
3.6.2.4 USB Configuration
The USB configuration menu is used to read USB configuration information and configure
USB.
Item Options Description
Legacy USB Support
Enabled[Default]
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.
ECHI Hand-Off
Enabled
Disabled[Default]
This is a workaround for OSes without EHCI hand-off
support. The EHCI ownership change should be
claimed by EHCI driver.
USB transfer time-out
1sec / 5sec
10sec / 20sec[Default]
The time-out value for Control, Bulk, and Interrupt
transfers.
Device reset time-out
10sec / 20sec[Default]
30sec / 40sec
USB mass storage device Start Unit command
time-out.
Device power-up delay
Auto[Default]
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 100ms, for a Hub
port the delay is taken from Hub descriptor.