# Layer

Source: [https://docs.qualcomm.com/doc/80-88500-2/topic/5_Layer.html](https://docs.qualcomm.com/doc/80-88500-2/topic/5_Layer.html)

Qualcomm Linux supports organizing the metadata into multiple layers with the OpenEmbedded build system. Layers allow you to isolate different types of customizations from each other. Qualcomm board support package (BSP) metadata includes two kinds of meta layers. These layers are prefixed with `meta-qti-` and are different from the Yocto meta layers and the remaining upstream layers. The layers with the prefix `meta-qti-` are private layers of Qualcomm. They contain many IoT technology modules, such as audio, camera, display, and GFX. They are placed in the &lt;source code&gt;/poky/ folder. The poky/qti-conf/get\_bblayers.py file generates the bblayers.conf file containing the list of BBLAYERS.

[Qualcomm Robotics RB5 layers](https://docs.qualcomm.com/doc/80-88500-2/topic/5_Layer.html#Layer_5__image_1) shows the layers offered by the Qualcomm Robotics RB5 device. The `meta-qti-bsp` layer is the main BSP layer, which offers specific hardware configurations. The `meta-qti-ubuntu` layer has similar functions as the `meta-qti-bsp` layer. The `meta-qti-ubuntu` layer offers the specific hardware configuration for the Qualcomm Robotics RB5 device, which has an independent uimage compared to the qimage for the `meta-qti-bsp` layer. The suffix `xxx-prop` layer is the supplement layer for `xxx`.

Figure : Qualcomm Robotics RB5 layers
      
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- **[Add a layer](https://docs.qualcomm.com/doc/80-88500-2/topic/6_Add_a_layer.html)**
- **[Drop an existing layer](https://docs.qualcomm.com/doc/80-88500-2/topic/7_Drop_an_existing_layer.html)**

**Parent Topic:** [Build system](https://docs.qualcomm.com/doc/80-88500-2/topic/4_Qualcomm_Robotics_RB5_build_system.html)

Last Published: Aug 18, 2023

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Add a layer](https://docs.qualcomm.com/bundle/publicresource/80-88500-2/topics/6_Add_a_layer.md)