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Tuesday, October 27 • 14:15 - 15:45
Tutorial: What The Clock! - Linux Clock Subsystem Internals - Neil Armstrong, BayLibre SAS

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But what are these "Clocks" stuff I see in the kernel about ? Since first introduction of linux/clk.h in 2006 from Russel King, clock management was progressively part of the needed system management and resource handling in drivers. Then, in 2012, Mike Turquette introduced the "Common Clock Framework" he co-maintained with Steven Boyd, becoming a central "Framework" handling clocks over the system to provide controls by the device drivers. However, what are these clocks? What are they in physical terms? How are they modeled in Hardware? Why do we need them to control internal&external devices? Neil will make a full overview of the "Common Clock Framework", how it's integrated in the Linux Kernel and a brief overview of the physical implementation&requirement in Hardware.

Speakers
avatar for Neil Armstrong

Neil Armstrong

Embedded Linux Engineer, BayLibre SAS
Embedded Linux Engineer since 2008, Neil worked on designing and supporting small in-house designed SoCs for Digital TV Content Protection, Set-Top-Box or Security Co-Processor, and is now Embedded Linux Expert in the Baylibre team. He ports, maintains and upstreams Linux support... Read More →



Tuesday October 27, 2020 14:15 - 15:45 GMT
101 Essentials Theater