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Support for 4G LTE Modems like Quectel EC200A working in RNDIS Mode

Posted: 2025-09-18 11:55
by kullu1991
Hi,
I need configurations for using Luckfox Pico Ultra W to interface with Quectel EC200A / EC200U working on RNDIS mode over the USB interface.
Also to access the Serial Inerface ttyUSB0/ttyUSB1/ttyUSB2 to fire AT commands to retrive sms/sim status/network status/apn configurations etc.

I can write scripts to do the operations but need a way to enable the modem detection for now

Re: Support for 4G LTE Modems like Quectel EC200A working in RNDIS Mode

Posted: 2025-09-20 7:11
by Crocodile
Hello, different 4G LTE modules have different kernel modification instructions. For example, [linux-src]/drivers/usb/serial/option.c, etc. We do not have relevant materials and hardware for developing and testing for EC200A. Please adapt the kernel based on the official documentation of EC200A;
Or try using the kernel configuration of Luckfox Pico Pi. The default kernel drivers have support for EC200T/EC200S_CN, and it is possible that it is also compatible with EC200A;