Two examples of abandoned hardware [LWN.net]

Two examples of abandoned hardware

Posted Apr 12, 2007 19:18 UTC (Thu) by oak (guest, #2786)
In reply to: Two examples of abandoned hardware by dufkaf
Parent article: Two examples of abandoned hardware

There was a good article on misconception about "somewhere" being
some perfect documentation for the hardware that the "evil" people had
"plotted" to keep away from the open source developers, but unfortunately
I couldn't find that article now. Basically it said that many of the device
drivers just "bang some HW registers" and only documentation available
(anywhere) is the code banging those HW registers. And the "magic" values
in the code are something that have been found to work by experimentation.
:-)

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Two examples of abandoned hardware

Posted Apr 12, 2007 20:17 UTC (Thu) by dufkaf (subscriber, #10358) [Link]

well one could log all reads and writes that go through those *-user drivers together with pid of calling process so we could guess what those closed userspace parts do ...