Not recognizing :(

[maddyvae]

My Macbook (running Big Sur 11.2.3) still won't recognize my Casio privia px-320. I've copied it to the drivers folder, tried many different things and it just won't recognize it at all :( any tips? Am I doing something wrong? haha

[francoisferland]

Hi, one thing you could do is check how your keyboard appears in System Report. See here for more info on how to check :

https://www.startech.com/en-es/faq/usb-general-mac-os-check-detection?srsltid=AfmBOoqpvPv6lHyKI5KoUvYqJYeZUxa8ur43mOL3X_JHsHCXLAqF9Dme

If you can, please attach a screenshot of how it looks like, the device and manufacturer ID, plus device type, would be the most important.

[piercebb]

Hi @francoisferland,

Thank you so much for your work to support this driver! I think it's exactly what I need to enable my mac to connect to my Casio Privia PX-320 keyboard.

I'm running into this thread issue. Here's where I'm at so far:

• Casio appears in the System Report
• The .plugin is in the Library/Audio/MIDI Drivers folder
• MIDI Studio does not find the device

Other details:

• Apple M3 Pro
• Mac OS 14.7.2 (23H311)
• I have restarted my laptop
• I ran into a documented Issue and explicitly enabled the plugin in Security & Privacy settings

What do you think is the next step to troubleshoot? Thank you in advance for your help 🙇🏽

[francoisferland]

Hi,

I've experimented a little with build settings and code signing options and successfully made it work this morning on my M2 Air (Sequoia 15.3). The driver still targets MacOS 11+, so it should work in Sonoma. Here are the steps I usually follow :

• Driver in /Library/Audio/MIDI Drivers, keyboard unplugged.
• Plug in the keyboard and turn it on
• Allow the USB device when prompted to
• Look into Audio & Midi Setup app, the Casio keyboard shows up
• Start Garage Band, I can get notes on synths

I attached the latest build as a zip file, just unzip it then copy the .plugin bundle over the old one. However, I would suggest those extra steps to figure out what does (or doesn't work):

• Remove old plugin and close the MIDI Settings app (or restart your computer)
• Start Console.app (should be in Applications/Utilities), turn monitoring on (the Play button)
• Copy the new driver in place, and start the MIDI settings app
• Plug and turn on the keyboard
• Look for Casio or USB related messages in Console.app. You can filter in the top right for "Casio"
• Copy here anything that looks wrong. On my side I get a few Debug Asserts, when GarageBand connects or I turn off the keyboard, but nothing out of the ordinary.

Hope this helps,

CasioUSBMIDIDriver.plugin.zip

[maddyvae]

Hi, one thing you could do is check how your keyboard appears in System Report. See here for more info on how to check :

https://www.startech.com/en-es/faq/usb-general-mac-os-check-detection?srsltid=AfmBOoqpvPv6lHyKI5KoUvYqJYeZUxa8ur43mOL3X_JHsHCXLAqF9Dme

If you can, please attach a screenshot of how it looks like, the device and manufacturer ID, plus device type, would be the most important.

Sorry I missed this response! I really appreciate it, and the time you're taking to help!
It is not showing up at all in System report - I'll attach a screen grab.
MacBook Pro M1 2020 running Big Sur 11.2.3
Interesting to note, that when I've double-clicked the driver just now to try this again, it is attempting to open via GarageBand. I can't seem to get it to stop. No driver in Audio MIDI Setup either.

[francoisferland]

Hi @maddyvae, could you expand the "Vendor-Specific Device" info ? I would like to see if it matches what the driver is trying to detect (Id 0x07CF).

[maddyvae]

Hi @maddyvae, could you expand the "Vendor-Specific Device" info ? I would like to see if it matches what the driver is trying to detect (Id 0x07CF).

Here's what it says!

[francoisferland]

Hi @maddyvae, could you expand the "Vendor-Specific Device" info ? I would like to see if it matches what the driver is trying to detect (Id 0x07CF).

Here's what it says!

Hi,

Ok, your keyboard shows up correctly and the IDs match what the driver should be looking for. I also noticed the auto-open in Garage Band when clicking on the driver.

Just to confirm, have you tried with the new version I posted a few messages up ? You can also open Console.app before copying the driver in Library/Audio/MIDI Drivers and turning the keyboard on, you might see relevant messages.

[maddyvae]

Hi! Yes, I have tried the new version. No luck.

[piercebb]

Hi @francoisferland 👋🏽

Thank you for the direction outlining repro steps and using the console.app for logs.

After following your steps I see a few logs related to the Casio:

usb-drd0-port-hs@00100000: AppleUSBHostPort::enumerateDeviceComplete_block_invoke: enumerated 0x07cf/6802/0100 (IOUSBHostDevice / 1) at 12 Mbps
usb-drd0-port-hs@00100000: AppleUSBHostPort::terminateDevice: destroying 0x07cf/6802/0100 (IOUSBHostDevice): hardware connection lost

To me, this reads that the device is detected but then lost due to some process.

---

Looking into logs with related timestamps I see a usb related log:

usb-drd0-port-ss@00200000: AppleUSB40XHCITypeCPort::cableChangeOccurred: cable disconnected, powering off

This log is suspicious.. at no point did I remove or disconnect the cable.

---

This occurs alongside a series of logs from IOAccessoryTRM that outline accessory attachment and notifications:

---

These logs are the product of the following steps:

1. power-cycle the laptop
2. paste the latest driver file into /MIDI Drivers
3. attach the casio keyboard via usb c
4. confirm in System Information USB Device Tree that the keyboard is not visible
5. start logs
6. turn on the keyboard
7. confirm in System Information USB Device Tree that the keyboard is present
8. stop logs

What do you think? Any other recommendations for debugging?

Thank you in advance, I really appreciate your help. I would love to get my Casio connected to my laptop so I can use it to make music. I'm also curious to understand how this driver works in the first place!

[piercebb]

@francoisferland

My Casio Privia PX-320 is successfully connected using the new driver 🎉 Thank you for all of your direction and for hosting this project. I'm so excited to make some music!

@maddyvae Some things to try:

1. Restart computer
2. Paste the latest driver into /MIDI Drivers
3. Privacy and Security Settings : Allow Accessories to Connect - Ask Every Time
4. Explicitly enable the plugin in Security & Privacy settings (see this response)

After these settings are applied, once you plug in your keyboard you'll see a series of popups from your computer:

1. Allow Accessory to Connect
2. "Mac cannot open the driver because it's from the internet"
   --> enable the driver explicitly in the Security & Privacy settings
   --> select Open given the option