View difference between Paste ID: HvUyHcUv and 2CLx6agc

-#include <stdio.h>
+include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
 
 #include <modbus.h>
 
 int main (void) {
     modbus_t *ctx;
     uint16_t tab_reg[64];
     int rc;
     int i;
 
     ctx = modbus_new_rtu("/dev/ttyUSB0", 9600, 'N', 8, 1);
     if (ctx == NULL ) {
         fprintf(stderr, "Connection failed: %s\n", modbus_strerror(errno));
         modbus_free(ctx);
         return -1;
     } else {
       fprintf(stderr, "Connected to /dev/ttyUSB0\n");
     }
 
     modbus_set_debug(ctx, 0x01);
 
     rc = modbus_set_slave(ctx, 0x01);
     if (rc == -1) {
       fprintf(stderr, "Set slave error: %s\n", modbus_strerror(errno));
       return -1;
     } else {
       fprintf(stderr, "Slave set to 0x01\n");
     }
 
-    /* Read register at address 30005 */
+
     rc = modbus_read_registers(ctx, 0, 1, tab_reg);
-    rc = modbus_read_registers(ctx, 30005, 1, tab_reg);
+
         fprintf(stderr, "%s\n", modbus_strerror(errno));
         return -1;
     } else {
       fprintf(stderr, "Called Modbus function code 0x03 (read holding registers) = %d\n", rc);
     }
     for (i=0; i < rc; i++) {
         printf("reg[%d]=%d (0x%X)\n", i, tab_reg[i], tab_reg[i]);
     }
 
     modbus_close(ctx);
     modbus_free(ctx);
 
     return 0;
 }