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Subject: os.system error returns
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Xref: csiph.com comp.lang.python:92518

I have a piece of code written for a Raspberry Pi with no explanation for =
two of the lines -- and I can't find an explanation I understand.

Here are the lines:
if os.system('modprobe --first-time -q w1_gpio') =3D=3D0

if os.system('modprobe -q w1_gpio') =3D=3D 256:



I know what the 'modprobe...' is, it's the 0 and the 256 I don't get. =
Where do these numbers come from?
I recognize they're some kind of error returns, but don't know what they =
mean.


Thanks,
Brian Grawburg