hello clex.riegler,
cam_i2cmux
the GPIO-based i2c bus multiplexer to route the i2c signals. it depends-on GPIO values 0/1 for child bus A/B.
please see-also, comment #8.
pca9548
if you check another 6-cam example, you should also searching for tca9548_77, it’s an i2c bus multiplexer/switch (at address 0x77) will have several child bus that are numbered uniquely in a device dependent manner.