findioreg

traverse IORegistryEntry tree and print properties (Mac OS X)

Example: To search USB uart bridge, whose vendor id/product id is 0x10c4/0xea60 and serial number is "SN1001" and print tty device name:

% findioreg -c IOUSBDevice -i idVendor=0x10c4 -i idProduct=0xea60 \
	-s "USB Serial Number"="SN1001" -P IOTTYDevice

-> SLAB_USBtoUART17

then you can use "/dev/cu.SLAB_USBtoUART17".