Lightning Talk: Strengthening Zephyr’s Camera Framework: Architecture Review and Enhancements
Lightningat Open Source Summit India 2026 · on Tuesday, 2026-06-16· at 18:55· Lotus Ballroom 2 (Level 3)·
summary
Adds runtime PM to Zephyr’s camera stack by implementing PM action callbacks in the IMX335 driver and testing on an STM32N6 board, so the sensor’s clocks and regulators suspend when stream off and resume on stream on. Provides a shell and prj.conf knobs to exercise get/put behavior and shows reduced idle power; proposes per-frame buffer status flags to mark partial/invalid frames (PR pending) and notes fragment handling needs design before dropping partial frames.
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chapters (6)
- 0:00Zephyr camera framework intro
- 1:46Zephyr video subsystem overview
- 2:51Runtime power management challenges
- 6:03PM callbacks in IMX335 driver
- 8:34Video status flags limitations
- 9:34Q&A
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