'\" te
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.TH streamtab 9S "11 Apr 1991" "SunOS 5.11" "Data Structures for Drivers"
.SH NAME
streamtab \- STREAMS entity declaration structure
.SH SYNOPSIS
.LP
.nf
#include <sys/stream.h> 
.fi

.SH INTERFACE LEVEL
.sp
.LP
Architecture independent level 1 (DDI/DKI).
.SH DESCRIPTION
.sp
.LP
Each STREAMS driver or module must have a \fBstreamtab\fR structure.
.sp
.LP
\fBstreamtab\fR is made up of \fBqinit\fR structures for both the read and
write queue portions of each module or driver. Multiplexing drivers require
both upper and lower \fBqinit\fR structures. The \fBqinit\fR structure contains
the entry points through which the module or driver routines are called.
.sp
.LP
Normally, the read \fBQUEUE\fR contains the \fBopen\fR and \fBclose\fR
routines. Both the read and write queue can contain \fBput\fR and service
procedures.
.SH STRUCTURE MEMBERS
.sp
.in +2
.nf
struct qinit    *st_rdinit;    /* read QUEUE */
struct qinit    *st_wrinit;    /* write QUEUE */
struct qinit    *st_muxrinit;  /* lower read QUEUE*/
struct qinit    *st_muxwinit;  /* lower write QUEUE*/
.fi
.in -2

.SH SEE ALSO
.sp
.LP
\fBqinit\fR(9S)
.sp
.LP
\fISTREAMS Programming Guide\fR