Ben and Ethernet

Bas Wijnen wijnen at debian.org
Wed Sep 1 08:21:35 EDT 2010


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Op 01-09-10 13:20, Carlos Camargo schreef:
> I like the Werner idea about re-design the keyboard layout or use a
> cheap chip to handle it.

Redesigning the keyboard layout should be without cost, so there's
nothing against that.  Using a cheap chip can help, but please be aware
of the consequences for the drivers.  In particular, it can with the
current setup be purely interrupt-driven, by setting all columns to 0
and all rows to pull-up input, with interrupt on falling edge.

If simple muxer chips are used, that benefit is lost, because it will
not be possible to set all lines to 0 simultaneously.

Thanks,
Bas
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