Visions for the Linux Kernel PWM Subsystem

Explore the future of the Linux Kernel PWM Subsystem in this 40-minute conference talk by Uwe KleineKönig from BayLibre. Delve into the challenges of meeting higher precision demands for motor control applications, which currently face limitations with the existing PWM API. Discover proposed changes to the PWM framework aimed at enhancing precision and control of PWM devices. Learn about potential improvements including faster userspace control, stricter rules for lowlevel drivers, methods for optimizing hardware requests, and a more comprehensive abstraction of PWM waveforms. Gain insights into how these enhancements could benefit various applications beyond the typical soft requirements of LEDs, fan control, and backlighting.