@tehn: late 2012 mac mini. the normal appleFTDI driver is what i used, too. before upgrading from 10.8, i made a point of uninstalling the upstream FTDI driver, so that SIP wouldn’t be an issue.
as the Console app seems nerfed, there are two ways i get device data. the long way is clicking through About This Mac -> System Report. the short way is to open a terminal and run ioreg -p IOUSB -w0. append an -l flag if you want to see absolutely everything.
on linux, i used to use dmesg and lsusb to instantly check pre/post hotplug detection. but dmesg has to be done as root on macOS, and it’s full of output from macOS’s broken components that are sending garbage requests over net ports. so, ignore it. ioreg is the equivalent of lsusb. here, for example, i have my grid plugged into a keyboard’s USB hub:
$ ioreg -p IOUSB -w0
<<snipped trees>>
| +-o IOUSBHostDevice@1a100000 <class AppleUSBDevice, id 0x10000030f, registered, matched, active, busy 0 (2 ms), retain 15>
| +-o Keyboard Hub@1a120000 <class AppleUSBDevice, id 0x100000360, registered, matched, active, busy 0 (1 ms), retain 16>
| +-o Apple Keyboard@1a122000 <class AppleUSBDevice, id 0x1000003bc, registered, matched, active, busy 0 (1 ms), retain 16>
| +-o monome@1a121000 <class AppleUSBDevice, id 0x100000658, registered, matched, active, busy 0 (13 ms), retain 14>
adding the -l flag gives a lot more output; at least as much as in System Report -> USB.