osx man page for free_rtn

free_rtn(9S)						    Data Structures for Drivers 					      free_rtn(9S)

NAME
       free_rtn - structure that specifies a driver's message-freeing routine

SYNOPSIS
       #include <sys/stream.h>

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

DESCRIPTION
       The   free_rtn structure is referenced by the  datab structure. When  freeb(9F) is called to free the message, the driver's message-freeing
       routine (referenced through the	free_rtn structure) is called, with arguments, to free the data buffer.

STRUCTURE MEMBERS
       void	(*free_func)()	    /* user's freeing routine */
       char	*free_arg	    /* arguments to free_func() */

       The  free_rtn structure is defined as type  frtn_t.

SEE ALSO
       esballoc(9F), freeb(9F), datab(9S)

       STREAMS Programming Guide

SunOS 5.10							    13 Nov 1996 						      free_rtn(9S)