I hate to be the little Smurf that always runs around saying "It'll never work!", but...

It'll never work!

1-wire devices have a Master/Slave type arrangement. OWIN and OWOUT are both Master commands. OWIN will receive from a slave, but will not receive from another master.

If you want to create a slave device, you'll need to write your own routines, which will not be very easy because the timing requirements for 1-wire devices are very strict.

If you decide to write your own. Here's everything you need to know about 1-wire.
http://www.maxim-ic.com/appnotes10.cfm/ac_pk/1
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