|  | @@ -597,9 +597,11 @@ static int do_i2cdump_cmd(int argc, char **argv)
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				|  |  |          log_send_messaging(MESSAGING_ERROR, "Wrong read size. Only support 1,2,4");
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				|  |  |          return 1;
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				|  |  |      }
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				|  |  | -    esp_err_t ret = i2c_initialize_driver_from_config();
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				|  |  | -	if(ret!=ESP_OK) return 0;
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				|  |  | -
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				|  |  | +    i2c_load_configuration();
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				|  |  | +    if(i2c_gpio_scl==-1 ||i2c_gpio_sda ==-1){
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				|  |  | +     	log_send_messaging(MESSAGING_ERROR,"i2c set failed. i2c needs to be configured first.");
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				|  |  | +     	return 0;
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				|  |  | +    }
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				|  |  |      char *buf = NULL;
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				|  |  |  	size_t buf_size = 0;
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				|  |  |  	FILE *f = open_memstream(&buf, &buf_size);
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				|  | @@ -611,7 +613,7 @@ static int do_i2cdump_cmd(int argc, char **argv)
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				|  |  |      uint8_t data_addr;
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				|  |  |      uint8_t data[4];
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				|  |  |      int32_t block[16];
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				|  |  | -    fprintf(f,"    00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f"
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				|  |  | +    fprintf(f,"\n    00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f"
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				|  |  |             "    0123456789abcdef\r\n");
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				|  |  |      for (int i = 0; i < 128; i += 16) {
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				|  |  |          fprintf(f,"%02x: ", i);
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				|  | @@ -686,10 +688,11 @@ static int do_i2cset_cmd(int argc, char **argv)
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				|  |  |      /* Check data: "-d" option */
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				|  |  |      int len = i2cset_args.data->count;
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				|  |  |  
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				|  |  | -    i2c_master_driver_initialize();
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				|  |  | -	if(i2c_master_driver_install()!=ESP_OK){
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				|  |  | -		 return 1;
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				|  |  | -	}
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				|  |  | +    i2c_load_configuration();
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				|  |  | +    if(i2c_gpio_scl==-1 ||i2c_gpio_sda ==-1){
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				|  |  | +    	log_send_messaging(MESSAGING_ERROR,"i2c set failed. i2c needs to be configured first.");
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				|  |  | +    	return 0;
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				|  |  | +    }
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				|  |  |  
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				|  |  |      i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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				|  |  |      i2c_master_start(cmd);
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				|  | @@ -717,7 +720,6 @@ static int do_i2cset_cmd(int argc, char **argv)
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				|  |  |  
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				|  |  |  static int do_i2cget_cmd(int argc, char **argv)
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				|  |  |  {
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				|  |  | -	esp_err_t err=ESP_OK;
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				|  |  |      int nerrors = arg_parse_msg(argc, argv,(struct arg_hdr **)&i2cget_args);
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				|  |  |      if (nerrors != 0) {
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				|  |  |          return 0;
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				|  | @@ -737,13 +739,11 @@ static int do_i2cget_cmd(int argc, char **argv)
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				|  |  |      }
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				|  |  |  
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				|  |  |  
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				|  |  | -    if((err=i2c_master_driver_initialize())!=ESP_OK){
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				|  |  | -    	log_send_messaging(MESSAGING_ERROR,"Error initializing i2c driver. %s",esp_err_to_name(err));
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				|  |  | -      	return 1;
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				|  |  | -     }
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				|  |  | -	if((err=i2c_master_driver_install())!=ESP_OK){
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				|  |  | -		 return 1;
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				|  |  | -	}
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				|  |  | +    i2c_load_configuration();
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				|  |  | +    if(i2c_gpio_scl==-1 ||i2c_gpio_sda ==-1){
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				|  |  | +    	log_send_messaging(MESSAGING_ERROR,"i2c set failed. i2c needs to be configured first.");
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				|  |  | +    	return 0;
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				|  |  | +    }
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				|  |  |  	char *buf = NULL;
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				|  |  |  	size_t buf_size = 0;
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				|  |  |  	FILE *f = open_memstream(&buf, &buf_size);
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				|  | @@ -798,11 +798,12 @@ static int do_i2cdetect_cmd(int argc, char **argv)
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				|  |  |  {
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				|  |  |  	uint8_t matches[128]={};
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				|  |  |  	int last_match=0;
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				|  |  | -	esp_err_t ret = i2c_initialize_driver_from_config();
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				|  |  | -	if(ret!=ESP_OK) {
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				|  |  | -		log_send_messaging(MESSAGING_ERROR,"i2c driver init failed.");
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				|  |  | -		return 0;
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				|  |  | -	}
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				|  |  | +	esp_err_t ret = ESP_OK;
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				|  |  | +    i2c_load_configuration();
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				|  |  | +    if(i2c_gpio_scl==-1 ||i2c_gpio_sda ==-1){
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				|  |  | +    	log_send_messaging(MESSAGING_ERROR,"i2c set failed. i2c needs to be configured first.");
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				|  |  | +    	return 0;
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				|  |  | +    }
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				|  |  |      uint8_t address;
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				|  |  |      char *buf = NULL;
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				|  |  |  	size_t buf_size = 0;
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				|  | @@ -813,7 +814,7 @@ static int do_i2cdetect_cmd(int argc, char **argv)
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				|  |  |  	}
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				|  |  |  
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				|  |  |  
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				|  |  | -    fprintf(f,"     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f\r\n");
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				|  |  | +    fprintf(f,"\n     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f\r\n");
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				|  |  |      for (int i = 0; i < 128 ; i += 16) {
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				|  |  |          fprintf(f,"%02x: ", i);
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				|  |  |          for (int j = 0; j < 16 ; j++) {
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				|  | @@ -956,6 +957,7 @@ static void register_i2cset(void)
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				|  |  |  
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				|  |  |  
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				|  |  |  
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				|  |  | +
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				|  |  |  static void register_i2cdump(void)
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				|  |  |  {
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				|  |  |      i2cdump_args.chip_address = arg_int1("c", "chip", "<chip_addr>", "Specify the address of the chip on that bus");
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