Adding CP210x USB to Serial converter support to m500

[boga]

How do I add support for CP210x USB to Serial converter on my m500 drone?
I know that it is a driver / kernel module issue, but I can't figure it out. Connecting Arduino UNO creates a ttyACM0 (virtual serial) right away. But the device that I need to connect has CP210x serial converter chip onboard.

I found the tutorials below, but as I am new to this, I am unable to figure it out. Help please!
https://gitlab.com/voxl-public/system-image-build/voxl-build/-/blob/master/README.md#building-the-kernel-and-wlan-module
https://gitlab.com/voxl-public/system-image-build/meta-voxl/-/tree/master?ref_type=heads
https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads
https://askubuntu.com/questions/941594/installing-cp210x-driver

[Eric Katzfey]

@boga Can you use an FTDI based converter instead?

[boga]

@Eric-Katzfey, yes. I came up with the same solution in parallel. I am already able to read data. FTDI based converter appears as ttyUSBX (X=0...n).
Also, while we're at it... If I would use the VOXL Flight port J10 to read in UART data, what is the port number from the software side?
Is there a documentation about that?

[Eric Katzfey]

@boga On a VOXL board J10 is mapped to the DSP and so you have to go through our libvoxl_io library to use it: https://docs.modalai.com/libvoxl-io/

[Alex Kushleyev]

this should be helpful as well : https://docs.modalai.com/voxl-serial-io/ , which points to a uart loop back test app for DSP-based UART ports (https://gitlab.com/voxl-public/libvoxl_io/blob/master/lib/apps/voxl-uart-loopback.c)