Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is now the preferred typical return value from a probe routine.  Discourage the use of 0 (BUS_PROBE_SPECIFIC) as it should be used very rarely. Point the reader to the DEVICE_PROBE(9) manpage for more detailed notes on possible probe return values.
Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is
now the preferred typical return value from a probe routine.  Discourage
the use of 0 (BUS_PROBE_SPECIFIC) as it should be used very rarely.
Point the reader to the DEVICE_PROBE(9) manpage for more detailed notes
on possible probe return values.

Submitted by:	Philip Soeberg  philip-dev of soeberg net

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase