Am 11.02.2015 um 20:12 schrieb Colin Reese:
> Why on earth would you bitbang a 2482 on a Pi when a perfectly good
> i2c bus exists?
>
I beg your pardon?
Bitbanging *onewire* requires no additional chip and is done through a
configureable GPIO on the Raspberry Pi.
In addition, the w1 kernel driver can make use of a ds2482(-100,
-800,83,84) on any of the existing i2c buses. Of course, the w1 system
does not bitbang at all in that case, but makes use of the bcm2708's i2c
subsystem.
Actually, it would do that on any board, too. Some laptops have internal
hardware connected the onewire bus which was the original cause to have
this w1 kernel driver, I think.
Kind regards
Jan
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