Subversion Repositories sockit_owm

//---------------------------------------------------------------------------

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//---------------------------------------------------------------------------

//

//  findtype.c - Test module to find all devices of one type.

//

//  Version: 2.00

//

//----------------------------------------------------------------------

//

//

#include "ownet.h"

#include "findtype.h"

//----------------------------------------------------------------------

// Search for devices

//

// 'portnum'  - number 0 to MAX_PORTNUM-1.  This number is provided to

//              indicate the symbolic port number.

// 'FamilySN' - an array of all the serial numbers with the matching

//              family code

// 'family_code' - the family code of the devices to search for on the

//                 1-Wire Net

// 'MAXDEVICES'  - the maximum number of devices to look for with the

//                 family code passed.

//

// Returns: TRUE(1)  success, device type found

//          FALSE(0) device not found

//

SMALLINT FindDevices(int portnum, uchar FamilySN[][8], SMALLINT family_code, int MAXDEVICES)

{

   int NumDevices=0;

   // find the devices

   // set the search to first find that family code

   owFamilySearchSetup(portnum,family_code);

   // loop to find all of the devices up to MAXDEVICES

   NumDevices = 0;

   do

   {

      // perform the search

      if (!owNext(portnum,TRUE, FALSE))

         break;

      owSerialNum(portnum,FamilySN[NumDevices], TRUE);

      if ((FamilySN[NumDevices][0] & 0x7F) == (family_code & 0x7F))

      {

         NumDevices++;

      }

   }

   while (NumDevices < (MAXDEVICES - 1));

   // check if not at least 1 device

   return NumDevices;

}