CP2102 unlisted device in dev on macOS 10 13

0 votes

So, I've got an ESP32 board with a CP2102 controller from Silicon Labs. When I connect it to my MacBook, I am supposed to be getting the details about this device using the command system_profiler SPUSBDataType, but it is not listed in /dev as a virtual serial port - which makes the communication impossible.

    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

Any ideas how to make it visible in /dev? 

Feb 4, 2019 in IoT (Internet of Things) by Shubham
• 13,490 points
745 views

1 answer to this question.

0 votes

You can follow these steps to get your device enlisted.

  1. Navigate to System Preferences > Security & Privacy
  2. At the bottom of the window, you shall see a message along the lines of System software from the developer: SiLabs was blocked from loading.
  3. Click on the Allow button
  4. Restart 

Now your device would be enlisted as /dev/cu.SLAB_USBtoUART.

answered Feb 4, 2019 by Upasana
• 8,620 points

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