more on serial setting of wifi and IP

main/wifi_cfg.c

@@ -1,9 +1,12 @@
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
+
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
+
 #include "esp_system.h"
 #include "esp_log.h"
 #include "nvs_flash.h"
@@ -11,16 +14,20 @@
 #include "esp_netif.h"
 #include "esp_wifi.h"
 #include "esp_event.h"
-#include "driver/uart.h"
+
-#include "esp_vfs_dev.h"
 #include "driver/usb_serial_jtag.h"
+#include "esp_vfs_dev.h"
+
+#include "wifi_cfg.h"
 
 static const char *TAG = "wifi_cfg";
 
 static void trim(char *s){
     int n = strlen(s);
     while(n>0 && (s[n-1]=='\r' || s[n-1]=='\n' || isspace((unsigned char)s[n-1]))) s[--n]=0;
-    while(*s && isspace((unsigned char)*s)) memmove(s, s+1, strlen(s));
+    while(*s && isspace((unsigned char)*s)){
+        memmove(s, s+1, strlen(s));
+    }
 }
 
 static esp_err_t nvs_set_str2(nvs_handle_t h, const char *key, const char *val){
@@ -28,6 +35,7 @@ static esp_err_t nvs_set_str2(nvs_handle_t h, const char *key, const char *val){
 }
 
 static bool cfg_dhcp = true;
+static esp_netif_t *sta_netif = NULL;
 
 static void save_cfg(const char* ssid, const char* pass, const char* ip, const char* mask, const char* gw, bool dhcp){
     nvs_handle_t h;
@@ -43,7 +51,8 @@ static void save_cfg(const char* ssid, const char* pass, const char* ip, const c
     cfg_dhcp = dhcp;
 }
 
-static bool load_cfg(char* ssid, size_t ssz, char* pass, size_t psz, char* ip, size_t isz, char* mask, size_t msz, char* gw, size_t gsz, bool* dhcp){
+static bool load_cfg(char* ssid, size_t ssz, char* pass, size_t psz,
+                     char* ip, size_t isz, char* mask, size_t msz, char* gw, size_t gsz, bool* dhcp){
     nvs_handle_t h;
     if (nvs_open("netcfg", NVS_READONLY, &h) != ESP_OK) return false;
     size_t len;
@@ -62,8 +71,6 @@ static bool load_cfg(char* ssid, size_t ssz, char* pass, size_t psz, char* ip, s
 
 void wifi_cfg_force_dhcp(bool enable){ cfg_dhcp = enable; }
 
-static esp_netif_t *sta_netif = NULL;
-
 static void apply_ip_static(const char* ip, const char* mask, const char* gw){
     if (!sta_netif) return;
     esp_netif_ip_info_t info = {0};
@@ -78,10 +85,10 @@ bool wifi_cfg_apply_from_nvs(void){
     char ssid[64]={0}, pass[64]={0}, ip[32]={0}, mask[32]={0}, gw[32]={0};
     bool dhcp = true;
     if (!load_cfg(ssid,sizeof(ssid), pass,sizeof(pass), ip,sizeof(ip), mask,sizeof(mask), gw,sizeof(gw), &dhcp)){
-        ESP_LOGW(TAG, "No Wi‑Fi config in NVS");
+        ESP_LOGW(TAG, "No Wi-Fi config in NVS");
         return false;
     }
-    ESP_LOGI(TAG, "Applying Wi‑Fi config: SSID=%s DHCP=%d IP=%s", ssid, dhcp, ip);
+    ESP_LOGI(TAG, "Applying Wi-Fi config: SSID=%s DHCP=%d IP=%s", ssid, dhcp, ip);
 
     static bool inited = false;
     if (!inited){
@@ -114,14 +121,12 @@ bool wifi_cfg_apply_from_nvs(void){
 }
 
 static void cfg_listener_task(void *arg){
-    // Install low-level USB-Serial/JTAG driver
     usb_serial_jtag_driver_config_t dcfg = USB_SERIAL_JTAG_DRIVER_CONFIG_DEFAULT();
     ESP_ERROR_CHECK(usb_serial_jtag_driver_install(&dcfg));
 
-    // Bind stdio to that driver (deprecated name, but available on IDF v5.3.1)
+    // Deprecated but functional - causes only a warning
     esp_vfs_usb_serial_jtag_use_driver();
 
-    // Now stdio is safe to use
     setvbuf(stdin, NULL, _IONBF, 0);
     setvbuf(stdout, NULL, _IONBF, 0);
 
@@ -135,7 +140,6 @@ static void cfg_listener_task(void *arg){
             vTaskDelay(pdMS_TO_TICKS(50));
             continue;
         }
-        // ... rest unchanged ...
         trim(line);
         if (!in_cfg){
             if (strcmp(line, "CFG")==0){
@@ -163,5 +167,6 @@ static void cfg_listener_task(void *arg){
 
 void wifi_cfg_init(void){
     nvs_flash_init();
-    xTaskCreatePinnedToCore(cfg_listener_task, "cfg_listener", 6144, NULL, 5, NULL, tskNO_AFFINITY);
+    xTaskCreatePinnedToCore(cfg_listener_task, "cfg_listener",
+                            6144, NULL, 5, NULL, tskNO_AFFINITY);
 }