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README.MD

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System requirements

Both the overlay and the bridge were tested in the following environment:

  • Raspberry Pi OS Lite
  • Release date: October 10th 2023
  • Last updated: March 15th 2024
  • System: 64-bit
  • Kernel version: 6.6
  • Debian version: 12 (bookworm)
  • Raspberry Pi: models 3B/B+, 4B and 5B

Build instructions

  1. Clone Repo git clone https://github.com/forkymcforkface/rpi-dpidac && cd rpi-dpidac
  2. Install Kernel Headers apt install raspberrypi-kernel-headers
  3. Compile the overlay and kernel module make
  4. Install the overlay and kernel module make install

Misc

  • Check if kernel module is loaded lsmod | grep rpi_dpidac
  • Display module info modinfo rpi-dpidac
  • Load module manually modprobe rpi-dpidac or insmod /usr/lib/modules/$(uname -r)/extra/rpi-dpidac.ko.xz
  • Unload module manually modprobe -r rpi-dpidac
  • Get kernel bridge message status less /var/log/messages | grep RPI-DPIDAC or dmesg | grep RPI-DPIDAC