ATD4_CHTYPE( )

Description | Cautions | Example | Errors | See Also

Name:	int ATD4_CHTYPE(devh)
Inputs:	int devh	channel descriptor
Returns:	channel type 0 -1	returned channel type information (see below)
Includes:	D42LIB.H
Mode:	synchronous

Description

The ATD4_CHTYPE( ) function returns the channel type of the queried device.

Channel Type	Description
TYP_D/82L4	Lucent Definity 75/85
TYP_D/82L2	Lucent Definity G3

TYP_D/82SR Siemens ROLM Series

TYP_D/82SH Siemens Hicom

TYP_D/82SX MITEL SX Series

TYP_D/82NS		Nortel Norstar
TYP_D/82M1		Nortel Meridian 1
Parameter		Description
devh:		specifies the valid channel device descriptor obtained by a call to dx_open( )

Cautions

None.

Example

void main(void)  
{  
        int          devh;  
        int          rc = 0;  
/* Open Channel Device */  
if ( (devh = dx_open("dxxxB1C1",NULL))==-1)  
     {  
printf("Error dx_open()\n");  
exit(-1);  
     } /* End dx_open */  
/* Check Channel Type */  
if ( (rc = ATD4_CHTYPE(devh))== -1)  
          {  
printf("Error ATD4_CHTYPE()\n");  
dx_close(devh);  
exit(-1);  
          }  
printf("Channel Type = %d\n",rc);  
dx_close(devh);  
}     /* End main */

Errors

If this function returns -1 to indicate a failure, one of the following (most common) codes will be contained in dx_errno. For a complete list of error codes and definitions, refer to Appendix C.

EDX_TIMEOUT	Firmware does not respond within a specified time
ED42_BADDEVICE	Invalid or wrong device handle
ED42_UNSUPPORTED	Function not supported on this board
ED42_UNKNOWNBOARD	Unknown D/42-xx or PBX Integration board type

See Also

• ATD4_BDTYPE( )

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