dev macOS 10 13 CP2102 device unlisted

Question

So, I'm using the ESP32 board with Silicon Labs CP2102 controller which, when connected to my MacBook, fetches the details about the device using the command system_profiler SPUSBDataType. The issue here is that it is not listed in /dev as a VSP so communication isn't possible with it.

    CP2102 USB to UART Bridge Controller:

      Product ID: 0xea60
      Vendor ID: 0x10c4  (Silicon Laboratories, Inc.)
      Version: 1.00
      Serial Number: 0001
      Speed: Up to 12 Mb/sec
      Manufacturer: Silicon Labs
      Location ID: 0x14200000 / 5
      Current Available (mA): 500
      Current Required (mA): 100
      Extra Operating Current (mA): 0

The driver I'm using is downloaded from https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers.

Any ideas how to make it visible in /dev?

Answer 1

You may try the following steps: 

1. Navigate to System Preferences > Security & Privacy
2. In the bottom of the window, you will see a message System software from developer "SiLabs" was blocked from loading."
3. Click on the Allow button
4. Restart Mac

Now your device is listed as /dev/cu.SLAB_USBtoUART.

Good Luck.