On 19.02.24 21:35, Didier Kryn wrote:

>     20 years ago I wanted to write a device driver for Linux. There was
> a book available on the net which explained how to do it. A new version
> of the book was published every year to follow the evolution of the
> kernel, but it was always too late.

We didn't have so much different HW and so many different archs under
support. And we also didn't have so many different subsystems.

Actually today it's often much easier to write drivers, since we now
have a lot of subsystems that already take most of the burden. That's
a key aspect in kernel development: common code for common things, try
not to repeat any code - following Wirth's philosophy.


--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
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