Cameras, Devicetree and ACPI: A Device Driver Perspective

Explore the intricacies of integrated camera hardware in this 39-minute conference talk from the Linux Foundation. Delve into the two main classes of camera systems: USB cameras and component-based setups. Learn about the advantages of component-based systems, including improved control, image quality, and flexibility in component selection. Examine the challenges of implementing these complex systems, including the need for multiple drivers and firmware interfaces. Gain insights into Devicetree (DT) and Advanced Configuration and Power Interface (ACPI) firmware interfaces for cameras, understanding their differences and how device drivers interact with them. Discover how this technology, traditionally found in mobile phones, is now being applied to laptops and tablets, and understand the implications for operating systems and device drivers.