RTS5411S CAM_I2C connection usage

Hello everyone,
I just wanted to confirm if the RTS5411S connection to the CAM_I2C is referenced or used somewhere on the source or dts files on the Jetson Nano.

Best Regards,
Juan Pablo.

Looks like it’s a usb hub, shouldn’t need any define in dts

HI @ShaneCCC,
It is a hub, however I can see in the schematic for the Jetson Nano Devkit rev a02 that this same USB hub has it’s I2C / SMBUS connected to the I2C camera bus.
In addition, the datasheet for this USB hub mentions that the SMBUS connection is enabled by default.

From those pieces of information, I assume this connection has a purpose and it should be located somewhere on a dts / source code / firmware binary.

Best Regards,
Juan Pablo.

I don’t see any dts define about the RTS5411S.
You can download the kernel and dts source code to check.

https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide%2Fkernel_custom.html%23

Hi @ShaneCCC,
I’ve already done so, I just wanted confirmation from Nvidia in case I might have missed something.

Best Regards,
Juan Pablo.