Returns the type of line interface associated with the specified timeslot.

To invoke this command, include it in a CxDriverCommand function call, as described in section 5.7.

op pointer to QUERY_TIMESLOT_PARMS structure:

typedef struct _query_timeslot_parms 
{
 DRVINT    size ;    /* size of this structure in bytes           */
 DRVINT    stream ;   /* set to network stream (16)           */
 DRVINT    timeslot ;    /* timeslot of line interface to query           */
 DRVINT    item ;    /* must be set to HYBRID_ID           */
 DRVINT    buffer[1] ;   /* buffer to receive line interface type            */

} QUERY_TIMESLOT_PARMS

5

SUCCESS, or an error code from swpath.h. (See the SwitchPath Technical Reference Manual for more information about this file.)

QUERY_TIMESLOT returns one of the following values:

Value	Line Interface Type
0xFF	No interface
0x07, 0x37, 0x40	Loop Start
0x3F, 0x0F	Make Busy Loop Start
0x10	Operator Work Station
0x1F	Operator Work Station with Ringing
0x18	High Impedance Monitor
0x17	Audio Tap Hybrid
0x08, 0x38, 0x80	DID / E&M
0x00, 0x30	Loop Start / Ground Start
0x58	4-Wire E&M

Note: Not all of the line interface types listed here are currently supported.

OS/2 UNIX Windows NT

This example returns the type of line interface at timeslot 15.

QUERY_TIMESLOT_PARMS op;

op.stream = 16;
op.timeslot = 15;
op.size = sizeof(op);
op.item = HYBRID_ID;

CxDriverCommand( SwHd, QUERY_TIMESLOT,  (SWPINT FAR *)  &op, sizeof(op)/sizeof(SWPINT)) ;

The parameter op.buffer[0] will contain the line interface type.

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(Page 10 of 11 in this chapter)

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