Thank you fzabkar. I presume that the additional enhanced host controller listed below is the EHCI USB 2 Host Controller I was looking for. I’m afraid that the detailed information retrieved is far too technical for me to make sense of. Perhaps you might be able to find a clue therein as to why the USB 2 controller adapter will not work. It would be great if you could.
INFORMATION FROM UVCVIEW
My Computer }
VIA Tech 3038 PCI to USB Universal Host Controller } These items
RootHub } were also
[Port 1] } shown in
[Port 2] } USBVIEW
}
VIA Tech 3038 PCI to USB Universal Host Controller }
RootHub }
[Port 1] }
[Port 2] }
VIA to USB Enhanced Host Controller } This Enhanced
RootHub } Host Controller
[Port 1] } was not shown
[Port 2] } in UCB View
[Port 3] }
[Port 4] }
DETAILS OF VIA to USB ENHANCED HOST CONTROLLER (shown in the rt.hand pane) follows
DriverKey: USB\0002
VendorID: 1106
DeviceID: 3104
SubSysID: 31041106
Revision: 65
USB Host Controller Power State Info for all System States
System State WdmUsbPowerSystemWorking NO Wake Up, NOT Powered
HcDevicePowerState : 201 WdmUsbPowerDeviceD0
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 201 WdmUsbPowerDeviceD0
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
System State WdmUsbPowerSystemSleeping1 NO Wake Up, Powered
HcDevicePowerState : 201 WdmUsbPowerDeviceD0
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 204 WdmUsbPowerDeviceD3
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
System State WdmUsbPowerSystemSleeping2 NO Wake Up, Powered
HcDevicePowerState : 201 WdmUsbPowerDeviceD0
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 204 WdmUsbPowerDeviceD3
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
System State WdmUsbPowerSystemSleeping3 NO Wake Up, Powered
HcDevicePowerState : 201 WdmUsbPowerDeviceD0
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 204 WdmUsbPowerDeviceD3
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
System State WdmUsbPowerSystemHibernate NO Wake Up, Powered
HcDevicePowerState : 201 WdmUsbPowerDeviceD0
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 204 WdmUsbPowerDeviceD3
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
System State WdmUsbPowerSystemShutdown NO Wake Up, NOT Powered
HcDevicePowerState : 000 WdmUsbPowerNotMapped
HcDeviceWake : 204 WdmUsbPowerDeviceD3
HcSystemWake : 000 WdmUsbPowerNotMapped
RhDevicePowerState : 000 WdmUsbPowerNotMapped
RhDeviceWake : 203 WdmUsbPowerDeviceD2
RhSystemWake : 101 WdmUsbPowerSystemWorking
LastSystemSleepState: 000 WdmUsbPowerNotMapped
There are no devices shown connected to any of the ports (even when a device is connected)
The USB 2 PCI Card Controller adapter (VIA) fitted has 5 Ports , 4 External and 1 internal.
Note - Edited for clarity. KW