Avalue EQM-BYT - Manual (Page 29)

User’s Manual
EQM-BYT User’s Manual 29
3.6.2.11 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 disables legacy support if no USB devices are
connected. DISABLE will keep USB devices
available only for EFI applications.
XHCI Hand-off
Enabled[Default]
Disabled
This is a workaround for OSes without XHCI hand-off
support. The XHCI ownership change should be
claimed by XHCI driver.
EHCI 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 Mass Storage Driver
Support
Enabled[Default]
Disabled
Enable/Disable USB Mass Storage Driver Support.
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.