Puppy Linux Discussion Forum

In order to communicate via USB with the serial port of many ESP32 microcontrollers in the Arduino IDE, the Silicon Labs CP2104 driver is used, for instance:

https://docs.heltec.org/general/establi ... ction.html

SiLabs claims that their driver ships with the Linux Kernel since version 2.6 and later:

https://community.silabs.com/s/article/ ... uage=en_US

Checking this in latest FatDog unfortunately returns nothing:

lsmod | grep cp210x

Is this driver module not available in the current FatDog Kernel or does it just have to be enabled with modprobe ?

Thanks for your feedback!

It's a module @Neo_78

# zcat /proc/config.gz | grep CP210
CONFIG_USB_SERIAL_CP210X=m

Thanks @fatdoguser.

So I assume I can simply load it with sudo modprobe cp210x ?

@Neo_78 yes, as root (or sudo)

modprobe cp210x

Optionally confirm with

lsmod | grep usbserial

Plugging the stuff to your computer's USB port should automatically load it if it is not already loaded.

Thanks @jamesbond @fatdoguser. The idea is to get an ESP32 microcontroller that I am able to access via Fatdog and these boards seem to ship with a variety of different USB-Serial chips. That's why I am asking before having to buy a larger number of boards.

There seems to be a global shortage of CP2104 chips so they replaced them with CH9102 chips. Is that driver module supported in FatDog?