Manual Pages for UNIX Operating System command usage for man mioc2ack

Kernel Functions for Drivers                         mioc2ack(9F)



NAME
     mioc2ack - Convert an M_IOCTL message to an M_IOCACK message

SYNOPSIS
     #include 
     #include 



     void mioc2ack(mblk_t *mp, mblk_t *dp, size_t count, int rval);


INTERFACE LEVEL
     Solaris DDI specific (Solaris DDI).

PARAMETERS
     mp       M_IOCTL message.


     dp       Payload to associate with M_IOCACK message.


     count    Value to set the ioc_count of the iocblk(9S) to.


     rval     Value to set the ioc_rval of the  iocblk(9S) to.


DESCRIPTION
     The mioc2ack() function converts an M_IOCTL message into  an
     M_IOCACK message using the supplied arguments.


     To convert the message, mioc2ack() changes the message  type
     to  M_IOCACK, sets the ioc_count and ioc_rval members of the
     iocblk(9S) associated with mp to the passed-in  values,  and
     clears  the  ioc_error  field. Further, it frees any message
     blocks chained off of mp->b_cont and  resets  mp->b_cont  to
     dp. Finally, if dp is not NULL, mioc2ack() resets dp->b_wptr
     to be dp->b_rptr + count (that is, it sets dp to be  exactly
     count bytes in length).

RETURN VALUES
     None.

CONTEXT
     This function can be called from user, kernel  or  interrupt
     context.

SEE ALSO
     miocack(9F), miocnak(9F), iocblk(9S)




SunOS 5.11          Last change: 9 June 2004                    1






Kernel Functions for Drivers                         mioc2ack(9F)



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SunOS 5.11          Last change: 9 June 2004                    2