You have to dig a bit. I got there via Main Page -> scroll to very bottom -> documentation -> Hardware -> Raspberry Pi -> Schematics -> Raspberry Pi 4 Model B

You have to dig a bit. I got there via Main Page -> scroll to very bottom -> documentation -> Hardware -> Raspberry Pi -> Schematics -> Raspberry Pi 4 Model B You can see the fixed resistors attached to the CC lines for basic Type-C analog signaling, and a simple PD_SENSE line connected to the power supply IC. https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_4b_4p0_reduced.pdf https://www.raspberrypi.org/documentation/hardware/raspberry...