frig_house_to_device_prefix (ul_friglib)

	status.i4.v = frig_house_to_device_prefix(house.ch.d,
						  device_prefix.i1a.r)

	This routine returns the device prefix for a given frig house.

	house		frig house name (HOUSE_NAME_LEN characters)
	device_prefix	returned device prefix
			(DEVICE_PREFIX_LEN + 1 characters)

	This function returns ACNET status values as follows:

	DIO_OK			success
	DIO_BADARG		invalid house passed

	This function requires the following include files:

	cnsparam_h, ul_friglib_h:friguti_h, acnet_errors_h

	Related functions:

	frig_house_to_node, frig_verify_house_c, frig_next_house_c,
	frig_house_select_init_c, frig_house_select_update_c,
	frig_house_select_set_c, frig_house_menu_c

	C usage:

	static const char	house[HOUSE_NAME_LEN+1] = "A1";
	char	device_prefix[DEVICE_PREFIX_LEN+1];
	int	status;

	status = frig_house_to_device_prefix(house,device_prefix);