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This information describes changes to image composition in QIR SDK from Qualcomm® Linux® 1.0 to Qualcomm Linux 2.0. For build system changes, including KAS setup, layer synchronization, and build commands, see Qualcomm Linux Migration Guide.

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Changes in supported hardware

NoteFrom Qualcomm Linux GA1.8, the QIR SDK stops the support for RB3 Gen 2 Vision Development Kit.

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Changes in image composition model

QIR SDK uses different image composition model for Qualcomm Linux 1.0 and 2.0 releases. Following are the detailed differences.

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QIR SDK for Qualcomm Linux 1.0

For Qualcomm Linux 1.0, QIR SDK uses a single image recipe (qcom-robotics-full-image). You can select from two build variants by setting QCOM_SELECTED_BSP at build time:
NoteFrom Qualcomm Linux GA1.8, the base build variant was removed for IQ-9075 Evaluation Kit and IQ-8 Beta Evaluation Kit.

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QIR SDK for Qualcomm Linux 2.0

The base/custom variant model is replaced by two separate image recipes, each built with a different Qualcomm Linux overlay configuration. Qualcomm Linux overlays are modular, value-added components — sources or prebuilt binaries for technologies such as audio, camera, graphics, video, and sensors — that integrate with upstream components so you can choose between the upstream and Qualcomm technology stacks. They are delivered as recipes in the meta-qcom BSP OpenEmbedded layer, letting you leverage hardware capabilities and optimizations tailored for Qualcomm SoCs. For details, see Qualcomm Linux overlay overview.