I have a PIR-1 and I am having trouble getting it connected to Girder 6 on Raspberry Pi.

The console reports: PIR::PIR / Could not open device "0001:0004:00"

It seems like it is not attached to a serial port.
I can see that the PIR-1 is recognized on boot-up.

I have tried the PIR-1 in question with a Windows 7 version of Girder 6.
The PIR-1 is not malfunctioning.