Fixed improper _

drivers/0x09_dht11/0x09_dht11.c

@@ -53,7 +53,7 @@
  * on failure prints a wiring-check message. Waits 2 s before returning
  * to respect the DHT11 minimum polling interval.
  */
-static void _print_reading(void) {
+static void print_reading(void) {
     float humidity = 0.0f;
     float temperature = 0.0f;
     if (dht11_read(&humidity, &temperature))
@@ -68,5 +68,5 @@ int main(void) {
     dht11_init(DHT11_GPIO);
     printf("DHT11 driver initialized on GPIO %d\r\n", DHT11_GPIO);
     while (true)
-        _print_reading();
+        print_reading();
 }

drivers/0x09_dht11/dht11.c

@@ -40,7 +40,7 @@ static uint dht_pin;
  * Drives the pin LOW for 18 ms then HIGH for 40 us before switching
  * the pin to input mode to listen for the sensor response.
  */
-static void _send_start_signal(void) {
+static void send_start_signal(void) {
     gpio_set_dir(dht_pin, GPIO_OUT);
     gpio_put(dht_pin, 0);
     sleep_ms(18);
@@ -58,7 +58,7 @@ static void _send_start_signal(void) {
  * @param level Logic level to wait through (0 or 1)
  * @return bool true once the level changed, false on timeout
  */
-static bool _wait_for_level(int level) {
+static bool wait_for_level(int level) {
     uint32_t timeout = 10000;
     while (gpio_get(dht_pin) == level)
         if (--timeout == 0) return false;
@@ -73,10 +73,10 @@ static bool _wait_for_level(int level) {
  *
  * @return bool true if the full response was received, false on timeout
  */
-static bool _wait_response(void) {
-    if (!_wait_for_level(1)) return false;
-    if (!_wait_for_level(0)) return false;
-    if (!_wait_for_level(1)) return false;
+static bool wait_response(void) {
+    if (!wait_for_level(1)) return false;
+    if (!wait_for_level(0)) return false;
+    if (!wait_for_level(1)) return false;
     return true;
 }
 
@@ -90,10 +90,10 @@ static bool _wait_response(void) {
  * @param i    Bit index (0-39)
  * @return bool true on success, false on timeout
  */
-static bool _read_bit(uint8_t *data, int i) {
-    if (!_wait_for_level(0)) return false;
+static bool read_bit(uint8_t *data, int i) {
+    if (!wait_for_level(0)) return false;
     uint32_t start = time_us_32();
-    if (!_wait_for_level(1)) return false;
+    if (!wait_for_level(1)) return false;
     uint32_t duration = time_us_32() - start;
     data[i / 8] <<= 1;
     if (duration > 40) data[i / 8] |= 1;
@@ -108,7 +108,7 @@ static bool _read_bit(uint8_t *data, int i) {
  */
 static bool _read_40_bits(uint8_t *data) {
     for (int i = 0; i < 40; i++)
-        if (!_read_bit(data, i)) return false;
+        if (!read_bit(data, i)) return false;
     return true;
 }
 
@@ -118,7 +118,7 @@ static bool _read_40_bits(uint8_t *data) {
  * @param data 5-byte received data (bytes 0-3 plus checksum in byte 4)
  * @return bool true if the checksum matches, false otherwise
  */
-static bool _validate_checksum(const uint8_t *data) {
+static bool validate_checksum(const uint8_t *data) {
     return data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF);
 }
 
@@ -130,10 +130,10 @@ void dht11_init(uint8_t pin) {
 
 bool dht11_read(float *humidity, float *temperature) {
     uint8_t data[5] = {0};
-    _send_start_signal();
-    if (!_wait_response()) return false;
+    send_start_signal();
+    if (!wait_response()) return false;
     if (!_read_40_bits(data)) return false;
-    if (!_validate_checksum(data)) return false;
+    if (!validate_checksum(data)) return false;
     *humidity = data[0] + data[1] * 0.1f;
     *temperature = data[2] + data[3] * 0.1f;
     return true;