K 10
svn:author
V 2
bz
K 8
svn:date
V 27
2008-04-20T17:45:32.000000Z
K 7
svn:log
V 222
devclass_get_maxunit() returns n+1 with n starting at 0.
So if we have channel 0..3  devclass_get_maxunit is 4.

It's never been a problem as devclass_get_device() has
catched a possibly bad input.

Discussed with:	scottl

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