int i2o_release_device (struct i2o_device * d, struct i2o_handler * h);
Drop a claim by an OSM on a given I2O device. The handler is cleared and 0 is returned on success.
AC - some devices seem to want to refuse an unclaim until they have finished internal processing. It makes sense since you don't want a new device to go reconfiguring the entire system until you are done. Thus we are prepared to wait briefly.