June 26-30, 2023 Prague, Czech Republic + Virtual View More Details & Registration Note: The schedule is subject to change.
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DRM KMS has been around for over ten years now and is the de-facto standard API for display hardware support in Linux. It has replaced the legacy fbdev API that should eventually be removed from the kernel entirely. Yet DRM KMS is a complete (and complex) framework that has evolved quite a lot over time, bringing support for modern hardware and interfaces as well as important features such as atomic configuration, zero-copy buffer sharing, fences and many more. A downside of this is the relative complexity of writing new drivers, which can sometimes feel a bit discouraging to newcomers. This talk will highlight the main aspects of the current DRM KMS kernel-side APIs and how to use them for writing such drivers. It will cover various topics such as memory management, internal pipeline configuration, bridge and panel handling as well as complex interfaces handling (such as MIPI DSI and DP). Examples from actual drivers in the tree will be presented, as well as impressions from personal experience when writing the logicvc-drm driver and working on various panel and bridge drivers.
Paul joined Bootlin in 2018 and started with bringing support for the Allwinner VPU to mainline Linux. He went on to cover more topics related to graphics and multimedia, with various contributions to the DRM and V4L2 Linux subsystems as well as various related projects. Before that... Read More →
Thursday June 29, 2023 16:00 - 16:40 CEST
South Hall 3B
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