sr_getboardcnt( )

Description | Example

Name:	long sr_getboardcnt(class_namep, boardcntp)
Inputs:	char *class_namep	pointer to class name
	int *boardcntp	pointer where to return count of boards in this class
Returns:	0 if success
	-1 if failure
Includes:	srllib.h
Type:	SRL Parameter

Description

The sr_getboardcnt( ) function retrieves the number of boards of a particular type. Use this function prior to starting an application in order to determine the amount of available resources. Once returned, the application can use technology-specific attribute functions to determine the number of devices (or subdevices) on the board, as well as other particular attributes of the board. Valid defines for class name are:

DEV_CLASS_VOICE	For voice boards
DEV_CLASS_DTI	For DTI boards
DEV_CLASS_MSI	For MSI boards

This function returns the number of boards about which an application needs knowledge. In the case of voice, the number of four-channel boards is returned. Standard names are applied as shown below:

DEV_CLASS_VOICE	dxxxB?C?
DEV_CLASS_DTI	dtiB?T?
DEV_CLASS_MSI	msiB?C?

The ?s above represent board or channel numbers (incremental, starting with 1).

Parameter	Description
class_namep	Pointer to class name
boardcntp	Pointer where to return count of boards of this class

Example

#include <windows.h>  
#include <srllib.h>  
#include <dxxxlib.h>
  
long  chdev[MAXDEVS];  
long  evt_handle;
  
main( ... )  
{  
   char channel_name[12], board_name[12];  
   int  brd_handle;  
   int brd, ch, devcnt = 0;  
   int numvoxbrds = 0;
  
   if ( sr_getboardcnt(DEV_CLASS_VOICE, &numvoxbrds) == -1) {  
       /* error retrieving voice boards */  
   }
  
   for (brd = 1; brd <= numvoxbrds; brd++) {  
       /* build the board name and open the board device to get number of channels */  
       sprintf(board_name, "dxxxB%d",brd);  
       if ( (brd_handle = dx_open(board_name, 0)) == -1) {  
             /* Board open error */  
       }  
       for (ch = 1; ch <= ATDV_SUBDEVS(brd_handle); ch++) {  
            sprintf(channel_name, "%sC%d", board_name, ch);  
            if ( (chdev[devcnt++] = dx_open(channel_name, 0)) == -1) {  
                /* Channel open error */  
            }  
       }    /* End of channel for loop */  
       dx_close(brd_handle);  
   }   /* End of board loop */
  
  

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