Kontron COMe-cSP2 - Manual (Page 82)

COMe-cSP2 / BIOS Operation
77
Devices Conficuration - USB Configuration
Feature Option Description
USB Functions Disabled
2 Ports
4 Ports
6 Ports
8 Ports Number of USB ports in the system including the two EHCI
ONLY ports.
USB EHCI Controller Enabled
Disabled Controls EHCI (USB 2.0) functionality for all the UHCI ports
set to active state
USB Client Controller Enabled
Disabled This enables the USB client functionality on COM Express
USB Port #7
Legacy USB Support Disabled
Enabled
Auto Enables support for legacy USB. AUTO option disables legacy
support if no USB devices are connected
USB Keyboard Legacy Support Enabled
Disabled Enables legacy support for USB keyboard
USB Mouse Legacy Support Enabled
Disabled Enables legacy support for USB mouse
USB Storage Device Support Enabled
Disabled Enables support for USB mass storage devices
USB 2.0 Controller Mode FullSpeed
HiSpeed Configures the USB 2.0 controller in HiSpeed (480Mbps) or
FullSpeed (12Mbps)
BIOS EHCI Hand-Off Disabled
Enabled This is a workaround for an OS without EHCI hand-off
support. The EHCI ownership change should claim by the
EHCI driver