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