cd_modem_sig_poll.7.man

This a separate release of the OpenSS7 X/Open XTI/TLI library, TLI modules (timod, tirdwr) and the I

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.\"
.\"
.TH CD_MODEM_SIG_POLL 7 "2004/05/16 02:35:41" "strxnet-0_9_2-4" "Communications Device Interface (CDI)"
.SH NAME
.B CD_MODEM_SIG_POLL
\- request a
.BR CD_MODEM_SIG_IND (7)
.SH SYNOPSIS
This primitive consists of one
.B M_PROTO
message block structured as follows:
.sp
.nf
\fC\s-1\
typedef struct {
    cd_ulong cd_primitive;
} cd_modem_sig_poll_t;
\fR\s+1
.fi
.SH DESCRIPTION
This user originated primitives requests that the CD provider respond with a
.BR CD_MODEM_SIG_IND (7)
indicating the current state of modem lines and signals.
.SS Parameters
This primitive contains the following parameters:
.TP
.I cd_primitive
Specifies the primitives type.
.SS State
This primitive is valid in any state other than
.B CD_UNUSABLED
or
.BR CD_UNATTACHED ,
and where a local acknowledgment is not pending.
.SH RESPONSE
This primitive requires the CD provider to respond with an acknowledgement
message as follows:
.PP
.B Successful:
When successful, the CD provider responds with a
.BR CD_MODEM_SIG_IND (7)
indicating the state of modem leads and signals.
.PP
.B Unsuccessful (non-fatal errors):
When unsuccessful, the CD provider responds with a
.BR CD_ERROR_ACK (7)
primitive indicating the reason for failure.
.SH ERRORS
.B Non-fatal errors:
applicable non-fatal errors are as follows:
.\".TP
.\".RB [ CD_BADADDRESS ]
.\"Address was invalid.
.\".TP
.\".RB [ CD_BADADDRTYPE ]
.\"Invalid address type.
.\".TP
.\".RB [ CD_BADDIAL ]
.\"Dial information was invalid.
.\".TP
.\".RB [ CD_BADDIALTYPE ]
.\"Invalid dial information type.
.\".TP
.\".RB [ CD_BADDISPOSAL ]
.\"Invalid disposal parameter.
.\".TP
.\".RB [ CD_BADFRAME ]
.\"Defective SDU received.
.\".TP
.\".RB [ CD_BADPPA ]
.\"Invalid PPA identifier.
.TP
.RB [ CD_BADPRIM ]
Unrecognized primitive.
.TP
.RB [ CD_DISC ]
Disconnected.
.TP
.RB [ CD_EVENT ]
Protocol-specific event occurred.
.TP
.RB [ CD_FATALERR ]
Device has become unusable.
.\".TP
.\".RB [ CD_INITFAILED ]
.\"Line initialization failed.
.TP
.RB [ CD_NOTSUPP ]
Primitive not supported by this device.
.TP
.RB [ CD_OUTSTATE ]
Primitive was issued from an invalid state.
.TP
.RB [ CD_PROTOSHORT ]
M_PROTO block too short.
.\".TP
.\".RB [ CD_READTIMEOUT ]
.\"Read request timed out before data arrived.
.TP
.RB [ CD_SYSERR ]
UNIX system error.
.\".TP
.\".RB [ CD_WRITEFAIL ]
.\"Unitdata request failed.
.SH FILES
<sys/cdi.h>
.SH "SEE ALSO"
.BR CD_MODEM_SIG_IND (7),
.BR CD_MODEM_SIG_REQ (7).
.SH HISTORY
.PP
The Communications Device Interface first appeared in SVR 4.
.[
svr4
.]
.SH CONFORMANCE
.PP
This interface conforms to CDI with Gcom extensions.
.XX
.[
magic
.]
.[
advprog
.]
.[
$LIST$
.]
.TI