Building Blocks

In OpenEmbedded, a layer is just a collection of recipes and/or configuration that can be used on top of OE-Core. Typically each layer is organised around a specific theme, e.g. adding recipes for building web browser software.

Layer for the Intel Edison Development Platform

    BBLAYERS ?= " \
      /home/abraham/edison-src/out/linux64/poky/meta \
      /home/abraham/edison-src/out/linux64/poky/meta-yocto \
      /home/abraham/edison-src/out/linux64/poky/meta-yocto-bsp \
      /home/abraham/edison-src/meta-intel-edison/meta-intel-edison-bsp \
      /home/abraham/edison-src/meta-intel-edison/meta-intel-edison-distro \
      /home/abraham/edison-src/out/linux64/poky/meta-intel-iot-middleware \
      /home/abraham/edison-src/meta-intel-edison/meta-intel-arduino \
      /home/abraham/edison-src/meta-arduino \
      \
      "
    BBLAYERS_NON_REMOVABLE ?= " \
      /home/abraham/edison-src/out/linux64/poky/meta \
      /home/abraham/edison-src/out/linux64/poky/meta-yocto \
      "

poky/meta

Yocto Metadata Layers

It includes:

    recipes-bsp          - Anything with links to specific hardware or hardware configuration information
    recipes-connectivity - Libraries and applications related to communication with other devices
    recipes-core         - What's needed to build a basic working Linux image including commonly used dependencies
    recipes-devtools     - Tools primarily used by the build system (but can also be used on targets)
    recipes-extended     - Applications which whilst not essential add features compared to the alternatives in
                           core. May be needed for full tool functionality or LSB compliance.
    recipes-gnome        - All things related to the GTK+ application framework
    recipes-graphics     - X and other graphically related system libraries
    recipes-kernel       - The kernel and generic applications/libraries with strong kernel dependencies
    recipes-lsb4         - Recipes added for the sole purpose of supporting the Linux Standard Base (LSB) 4.x
    recipes-multimedia   - Codecs and support utilties for audio, images and video
    recipes-rt           - Provides package and image recipes for using and testing the PREEMPT_RT kernel
    recipes-qt           - All things related to the Qt application framework
    recipes-sato         - The Sato demo/reference UI/UX, its associated apps and configuration
    recipes-support      - Recipes used by other recipes but that are not directly included in images

meta-yocto

Yocto Project integration layers (Poky distro configuration, reference hardware BSPs) Poky reference distribution for the Yocto Project

It includes:

  • meta-yocto-bsp

  • meta-yocto

  • scripts

Links

meta-yocto-bsp

BSP layer for Yocto Project reference hardware

meta-intel-edison-bsp

BSP layer for the Intel Edison module.

It includes:

  • bcm43340-bt Broadcom Bluetooth fw files and patch utility

  • bcm43340-fw Firmware files for use with Linux kernel

  • bcm43340-mod Broadcom wifi driver for the 43340

  • linux-externalsrc Yocto Kernel

  • mcu-fw-bin This is edison mcu fw binary.

  • mcu-fw-load This is intel mcu app download daemon.

  • pwr-button-handler Daemon listening to Edison PWR long button press, and starting OOBE service when it happens

  • sst-fw-bin This is edison sst fw binary.

  • u-boot Universal Boot Loader for embedded devices

  • u-boot-fw-utils U-boot bootloader fw_printenv/setenv utils

  • u-boot-tools U-boot bootloader mkimage tool

Links

meta-intel-edison-distro

This is the distro layer used to build official Intel Edison images.

meta-intel-iot-middleware

Shared middleware recipes for Intel IoT platforms

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