4216a4217,4227
> 	// gpsd response
> 	char json_tpv_object[1024];
> 	// protocol markers
> 	char LAT_FIELD[]= "lat\":";
> 	char LON_FIELD[]= "lon\":";
> 	char ALT_FIELD[]= "alt\":";
> 	char VEL_FIELD[]="speed\":";
> 	char COURSE_FIELD[]= "track\":";
> 	// tmp reference
> 	char* jason_offset;
> 
4219c4230
<     char line[256], *p;
---
>     char line[256];
4221d4231
<     int ret;
4249a4260
>         // New gpsd protocol POLL command:
4251,4252c4262,4264
<         snprintf( line,  sizeof( line ) - 1, "PVTAD\r\n" );
<         if( send( gpsd_sock, line, 7, 0 ) != 7 )
---
>         snprintf( line,  sizeof( line ) - 1, "?POLL;\r\n" );
>         if( send( gpsd_sock, line, 8, 0 ) != 8 )
>         {
4254c4266
< 
---
>         }
4256c4268
< 			return;
---
> 			return; //?
4258,4259c4270,4272
<         memset( line, 0, sizeof( line ) );
<         if( recv( gpsd_sock, line, sizeof( line ) - 1, 0 ) <= 0 )
---
>         // New gpsd protocol response (json object)
>         memset( json_tpv_object, 0, sizeof( json_tpv_object ) );
>         if( recv( gpsd_sock, json_tpv_object, sizeof( json_tpv_object ) - 1, 0 ) <= 0 )
4261d4273
< 
4265,4282c4277,4300
<         if( memcmp( line, "GPSD,P=", 7 ) != 0 )
<             continue;
< 
<         /* make sure the coordinates are present */
< 
<         if( line[7] == '?' )
<             continue;
< 
<         ret = sscanf( line + 7, "%f %f", &G.gps_loc[0], &G.gps_loc[1] );
< 
<         if( ( p = strstr( line, "V=" ) ) == NULL ) continue;
<         ret = sscanf( p + 2, "%f", &G.gps_loc[2] ); /* speed */
< 
<         if( ( p = strstr( line, "T=" ) ) == NULL ) continue;
<         ret = sscanf( p + 2, "%f", &G.gps_loc[3] ); /* heading */
< 
<         if( ( p = strstr( line, "A=" ) ) == NULL ) continue;
<         ret = sscanf( p + 2, "%f", &G.gps_loc[4] ); /* altitude */
---
> 		// latitude
> 		jason_offset= strstr(json_tpv_object,LAT_FIELD);
> 		if (jason_offset != 0)
> 			sscanf(jason_offset+sizeof(LAT_FIELD)-1,"%f,%*s",&G.gps_loc[0]);
> 
> 		// longitude
> 		jason_offset= strstr(json_tpv_object,LON_FIELD);
> 		if (jason_offset != 0)
> 			sscanf(jason_offset+sizeof(LON_FIELD)-1,"%f,%*s",&G.gps_loc[1]);
> 
> 		// altitude
> 		jason_offset= strstr(json_tpv_object,ALT_FIELD);
> 		if (jason_offset != 0)
> 			sscanf(jason_offset+sizeof(ALT_FIELD)-1,"%f,%*s",&G.gps_loc[2]);
> 
> 		// velocity
> 		jason_offset= strstr(json_tpv_object,VEL_FIELD);
> 		if (jason_offset != 0)
> 			sscanf(jason_offset+sizeof(VEL_FIELD)-1,"%f,%*s",&G.gps_loc[3]);
> 
> 		// course
> 		jason_offset= strstr(json_tpv_object,COURSE_FIELD);
> 		if (jason_offset != 0)
> 			sscanf(jason_offset+sizeof(COURSE_FIELD)-1,"%f,%*s",&G.gps_loc[4]);
4285c4303
<         	fputs( line, G.f_gps );
---
>         	fputs( json_tpv_object, G.f_gps );