USB Ethernet Not Detected in Real-Time (RT) OpenSTLinux Build.

[Anurag_patil]

I am facing an issue where USB Ethernet (RNDIS/ECM) is not detected on my board using the RT version of OpenSTLinux.

 

Previously, using the standard OpenSTLinux build:

meta-st-stm32mp.git -b openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06

The board was detected as a USB Ethernet (ECM) device when connected to a host PC via USB.

 

However, when switching to the Real-Time (RT) version of the same build:

meta-st-x-linux-rt.git -b openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06

The USB is no longer detected as an Ethernet device.

 

I would like to understand if any USB gadget configuration is missing in the RT build, and what changes (if any) are needed in the kernel or device tree to enable RNDIS or ECM USB functionality in this configuration.

[Christophe Guibout]

Hello @Anurag_patil,

 

I confirm the issue with ecosystem release v6.0.0 (v24.11.06), and it has been fixed with ecosystem release v6.1.0 (v25-06-11) : I would recommand to switch on this release.

BR,

Christophe

 

[Anurag_patil]

Hello Christophe,


Thank you for confirming the issue and providing the solution. I will proceed with upgrading to ecosystem release v6.1.0 as recommended.


Appreciate your quick response and support.


Best regards,

Anurag Patil