I'm creating a new driver for an old piece of equipment, a Canberra iSolo Alpha/Beta Radiation Counter. The manufacturer does not supply an independent driver with the instrument. I'm forced to use USB RAW since I don't believe the tool is USBTMC compatable. I've created a USB driver using the VISA Wizard and it looks like it's almost all there, except I get a VI_ATTR_USB_BULK_IN_STATUS with an Invalid Property Value, the instrument appears to not support Bulk In Pipe so that attribute is set to -1. Why is the value for the status invalid?
Cheers,
Boyd