Leigh Smith

Ok, have you downloaded and installed the M-Audio v3.5.3 DMG file per the [instructions in the README](https://github.com/leighsmith/midisport-macos#installation-instructions)? To aid the diagnosis, use `/Applications/Utilities/System Information.app` to examine the `Hardware` -> `USB`...

To be clear, you should not attempt to run the M-Audio v3.5.3 DMG installer. Simply leave it in `~/Downloads` per the instructions: "If you need to install firmware for devices...

I'm not seeing the problems reported, on MacOS 14.4.1 on an Intel MacBook Pro. Do you continue to see the problem if you start up the Apple `Audio MIDI Setup.app`...

Ok, the first task is for us to determine exactly what version of the hardware and what firmware should be downloaded to it. Use the `/Applications/Utilities/System Information.app` to determine the...

If you do not see the uninitialized MIDISPORT device being recognized when running the firmware downloaded manually, and you do not see the uninitialized device listed in the System Report...

If you post here the vendor Id and the product Id you are seeing in System Report USB devices tree, we might be able to diagnose the problem.

Hmm, that is a vendor id which isn't associated with the MIDISPORT. To check it, click the Apple icon on the top left corner of the screen, select About This...