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FOSDEM PWA

How to develop and test a PWM driver

UA2.114 (Baudoux) | Day 2 | 11:20 - 11:40 | Speakers: Uwe Kleine-König

How to develop and test a PWM driver
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Notes

Abstract

Most SoCs provide a PWM controller which it used mainly to drive LEDs, a display backlight or a fan. Less often a PWM controls a motor.

The motor use case has a higher demand for exact control of the produced output. In the development cycle for Linux 6.13, the preferred abstraction for a PWM driver changed to be able to fulfill these needs.

After a quick introduction about what a PWM actually does, Uwe (who is also the Linux PWM subsystem maintainer) will present the new API with its requirements and the hardware and software he uses to develop and test a driver.

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Speakers

Uwe Kleine-König

Uwe is a kernel engineer at Baylibre and maintainer for the PWM subsystem in the kernel. Other than that he is active in the Debian project and his local LUG.

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