Get List of Connected Devices (USB, GPIB, etc)

[ngay528]

For GPIB (actually GPIB devices connected to GPIB to USB cable) I do:

static short addrList[31];
	static short listList[31];
    
	for (j=0;j<31;j++) {
		addrList[j] = j;	
	}
	addrList[30] = -1;
	
	SendIFC(0);
	FindLstn(0,addrList,listList,30);

But not sure how I would do other ports such as USB.  i can see it in MAX but it just seems to automatically appear.

[Wolfgang · Accepted solution]

Hi,

personally I use VISA. For finding all available serial ports I use viFindRsrc ( resource_manager_handle, "ASRL[0-9]*::?*INSTR", &find_handle, &return_count, instrument_descriptor ); for GPIB you would use "GPIB[0-9]*::?*INSTR" as the second argument.

[ngay528]

That actually worked pretty well!  I just did the generic search of "?*INSTR".  As I go through each Item, I can get its properties, port, etc.

Kudos & Thanks,

Nick

[Wolfgang]

You're welcome!