Update pushRx documentation

Author: h2zero

src/NimBLEStream.cpp

@@ -493,7 +493,8 @@ size_t NimBLEStream::pushRx(const uint8_t* data, size_t len) {
 
     size_t freeSize = m_rxBuf->freeSize();
     if (len > freeSize) {
-        const RxOverflowAction action = m_rxOverflowCallback ? m_rxOverflowCallback(data, len, m_rxOverflowUserArg) : DROP_NEW_DATA;
+        const RxOverflowAction action = m_rxOverflowCallback ? m_rxOverflowCallback(data, len, m_rxOverflowUserArg)
+                                                             : DROP_NEW_DATA;
         if (action != DROP_OLDER_DATA) {
             NIMBLE_LOGE(LOG_TAG, "RX buffer overflow, dropping current data");
             return 0;
@@ -527,12 +528,13 @@ size_t NimBLEStream::pushRx(const uint8_t* data, size_t len) {
  * @param txBufSize Size of the TX buffer.
  * @param rxBufSize Size of the RX buffer.
  * @return true if initialization was successful, false otherwise.
- * @details The provided characteristic must have the NOTIFY property set for write operations
- * to work and the WRITE or WRITE_NR property set for read operations to work.
- * The stream will manage setting its own callbacks on the characteristic, but will save and call
- * any existing user callbacks if they were set.
- * The RX buffer will only be created if the characteristic has WRITE or WRITE_NR properties.
- * The TX buffer will only be created if the characteristic has NOTIFY properties.
+ * @details The provided characteristic must have the NOTIFY property set to allow the server
+ * to send data (TX) to the client, and the WRITE or WRITE_NR property set to allow the server
+ * to receive data (RX) from the client.
+ * The RX buffer will only be created if the characteristic has WRITE or WRITE_NR properties
+ * (i.e. can receive data from the client).
+ * The TX buffer will only be created if the characteristic has NOTIFY properties
+ * (i.e. can send data to the client).
  */
 bool NimBLEStreamServer::begin(NimBLECharacteristic* pChr, uint32_t txBufSize, uint32_t rxBufSize) {
     if (!NimBLEDevice::isInitialized()) {