Manual Pages for UNIX Operating System command usage for man strqset

Kernel Functions for Drivers                          strqset(9F)



NAME
     strqset - change information about a queue or  band  of  the
     queue

SYNOPSIS
     #include 



     int strqset(queue_t *q, qfields_t what, unsigned char pri, intptr_t val);


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

PARAMETERS
     q       Pointer to the queue.


     what    Field of  the  queue  structure  (or  the  specified
             priority  band)  to  return information about. Valid
             values are one of:

             QHIWAT     High water mark.


             QLOWAT     Low water mark.


             QMAXPSZ    Largest packet accepted.


             QMINPSZ    Smallest packet accepted.



     pri     Priority band of interest.


     val     The value for the field to be changed.


DESCRIPTION
     The strqset() function gives drivers and modules  a  way  to
     change  information  about a queue or a particular band of a
     queue without directly accessing STREAMS data structures.

RETURN VALUES
     On success, 0 is returned. EINVAL is returned  if  an  unde-
     fined attribute is specified.





SunOS 5.11          Last change: 16 Jan 2006                    1






Kernel Functions for Drivers                          strqset(9F)



CONTEXT
     The strqset() function can be called from  user,  interrupt,
     or kernel context.

SEE ALSO
     strqget(9F), queue(9S)


     Writing Device Drivers


     STREAMS Programming Guide

NOTES
     When lowering existing values, set  QMINPSZ  before  setting
     QMAXPSZ;  when  raising  existing values, set QMAXPSZ before
     setting QMINPSZ.






































SunOS 5.11          Last change: 16 Jan 2006                    2