min(9f) [ultrix man page]

min(9F) 						   Kernel Functions for Drivers 						   min(9F)

NAME

       min - return the lesser of two integers

SYNOPSIS

       #include <sys/ddi.h>

       int min(int int1, int int2);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       int1	The first integer.

       int2	The second integer.

DESCRIPTION

       min() compares two signed integers and returns the lesser of the two.

RETURN VALUES

       The lesser of the two integers.

CONTEXT

       min() can be called from user or interrupt context.

SEE ALSO

       max(9F)

       Writing Device Drivers

SunOS 5.10							    11 Apr 1991 							   min(9F)

OTHERQ(9F)						   Kernel Functions for Drivers 						OTHERQ(9F)

NAME

       OTHERQ, otherq - get pointer to queue's partner queue

SYNOPSIS

       #include <sys/stream.h>
       #include <sys/ddi.h>

       queue_t *OTHERQ(queue_t *q);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       q	Pointer to the queue.

DESCRIPTION

       The  OTHERQ()  function returns a pointer to the other of the two queue structures that make up a STREAMS module or driver.  If q points to
       the read queue the write queue will be returned, and vice versa.

RETURN VALUES

       OTHERQ() returns a pointer to a queue's partner.

CONTEXT

       OTHERQ() can be called from user or interrupt context.

EXAMPLES

       Example 1: Setting Queues

       This routine sets the minimum packet size, the maximum packet size, the high water mark, and the low water mark	for  the  read	and  write
       queues  of  a given module or driver. It is passed either one of the queues.  This could be used if a module or driver wished to update its
       queue parameters dynamically.

	1  void
	2  set_q_params(q, min, max, hi, lo)
	3      queue_t *q;
	4      short min;
	5      short max;
	6      ushort_t hi;
	7      ushort_t lo;
	8  {
	9	    q->q_minpsz = min;
       10	    q->q_maxpsz = max;
       11	    q->q_hiwat = hi;
       12	      q->q_lowat = lo;
       13	    OTHERQ(q)->q_minpsz = min;
       14	    OTHERQ(q)->q_maxpsz = max;
       15	    OTHERQ(q)->q_hiwat = hi;
       16	    OTHERQ(q)->q_lowat = lo;
       17  }

SEE ALSO

       Writing Device Drivers

       STREAMS Programming Guide

SunOS 5.10							    11 Apr 1991 							OTHERQ(9F)