I2S compile error

Author: pschatzmann

src/AudioI2S/I2SESP32.h

@@ -30,13 +30,13 @@ class I2SBase {
     }
 
     /// starts the DAC with the default config
-    void begin(RxTxMode mode = TX_MODE) {
-        begin(defaultConfig(mode));
+    bool begin(RxTxMode mode = TX_MODE) {
+        return begin(defaultConfig(mode));
     }
 
 
     /// starts the DAC 
-    void begin(I2SConfig cfg) {
+    bool begin(I2SConfig cfg) {
       LOGD(LOG_METHOD);
       switch(cfg.rx_tx_mode){
         case TX_MODE:
@@ -52,7 +52,7 @@ class I2SBase {
       }
       int txPin = cfg.rx_tx_mode == TX_MODE ? cfg.pin_data : I2S_PIN_NO_CHANGE;
       int rxPin = cfg.rx_tx_mode == RX_MODE ? cfg.pin_data : I2S_PIN_NO_CHANGE;
-      begin(cfg, txPin, rxPin);
+      return begin(cfg, txPin, rxPin);
     }
 
     /// we assume the data is already available in the buffer
@@ -108,7 +108,7 @@ class I2SBase {
     bool is_started = false;
 
     /// starts the DAC 
-    void begin(I2SConfig cfg, int txPin, int rxPin) {
+    bool begin(I2SConfig cfg, int txPin, int rxPin) {
       LOGD(LOG_METHOD);
       cfg.logInfo();
       this->cfg = cfg;
@@ -171,6 +171,7 @@ class I2SBase {
 
       is_started = true;
       LOGD("%s - %s", __func__, "started");
+      return true;
     }
 
     // update the cfg.i2s.channel_format based on the number of channels

src/AudioI2S/I2SSAMD.h

@@ -22,18 +22,23 @@ class I2SBase {
     }
 
     /// starts the DAC with the default config
-    void begin(RxTxMode mode = TX_MODE) {
-      begin(defaultConfig())
+    bool begin(RxTxMode mode = TX_MODE) {
+      return begin(defaultConfig())
     }
 
     /// starts the DAC 
-    void begin(I2SConfig cfg) {
+    bool begin(I2SConfig cfg) {
         I2S.begin(cfg.i2s_format, cfg.sample_rate, cfg.bits_per_sample, cfg.is_master);
         if (cfg.mode = TX_MODE){
             I2S.enableTransmitter();
         } else {
             I2S.enableReceiver();
         }
+        return true;
+    }
+
+    bool begin() {
+      return begin(cfg);
     }
 
     /// stops the I2C and unistalls the driver

src/AudioI2S/I2SStream.h

@@ -34,11 +34,11 @@ class I2S : public I2SBase {
       end();
     }
 
-    void begin(I2SConfig cfg) {
+    bool begin(I2SConfig cfg) {
       LOGD(LOG_METHOD);
       // define bits per sampe from data type
       cfg.bits_per_sample = sizeof(T) * 8;
-      I2SBase::begin(cfg);
+      return I2SBase::begin(cfg);
     }
 
     /// writes the data to the I2S interface
@@ -83,6 +83,10 @@ class I2SStream : public AudioStream {
             return i2s.defaultConfig(mode);
         }
 
+        bool begin() {
+            return i2s.begin();
+        }
+
         /// Starts the I2S interface
         void begin(I2SConfig cfg) {
             LOGD(LOG_METHOD);