[docs] fixing typos in comments/docs (#3120)

examples/platforms/openthread-system.h

@@ -45,7 +45,7 @@ extern "C" {
  * This function performs all platform-specific initialization of OpenThread's drivers.
  *
  * @note This function is not called by the OpenThread library. Instead, the system/RTOS should call this function
- *       when initialization of OpenThread's drivers is most approriate.
+ *       when initialization of OpenThread's drivers is most appropriate.
  *
  * @param[in]  argc  Number of arguments in @p argv.
  * @param[in]  argv  Argument vector.

examples/platforms/utils/flash.h

@@ -71,7 +71,7 @@ uint32_t utilsFlashGetSize(void);
  *
  * @retval OT_ERROR_NONE           Erase flash operation is started.
  * @retval OT_ERROR_FAILED         Erase flash operation is not started.
- * @retval OT_ERROR_INVALID_ARGS    aAddress is out of range of flash or not aligend.
+ * @retval OT_ERROR_INVALID_ARGS    aAddress is out of range of flash or not aligned.
  */
 otError utilsFlashErasePage(uint32_t aAddress);
 

include/openthread/platform/radio.h

@@ -629,7 +629,7 @@ int8_t otPlatRadioGetReceiveSensitivity(otInstance *aInstance);
  *       via @p aFrame, but should not read/write any state within OpenThread.
  *
  * @param[in]  aInstance   The OpenThread instance structure.
- * @param[in]  aFrame      The radio frame which neeeds to process transmit security.
+ * @param[in]  aFrame      The radio frame which needs to process transmit security.
  *
  */
 extern void otPlatRadioFrameUpdated(otInstance *aInstance, otRadioFrame *aFrame);

src/core/api/instance_api.cpp

@@ -156,7 +156,7 @@ const char *otGetVersionString(void)
  * intended to be used to specify compiler directives to indicate
  * what linker section the platform version string should be stored.
  *
- * This is useful for specifying an exact locaiton of where the version
+ * This is useful for specifying an exact location of where the version
  * string will be located so that it can be easily retrieved from the
  * raw firmware image.
  *

src/core/openthread-core-default-config.h

@@ -1758,7 +1758,7 @@
  * to support following features:
  *    1. Time synchronization service feature (i.e., OPENTHREAD_CONFIG_ENABLE_TIME_SYNC is set).
  *
- * @note If it's enabled, plaforms must support interrupt context and concurrent access AES.
+ * @note If it's enabled, platform must support interrupt context and concurrent access AES.
  *
  */
 #ifndef OPENTHREAD_CONFIG_HEADER_IE_SUPPORT

src/ncp/spinel.h

@@ -1612,7 +1612,7 @@ typedef enum {
      *   `D`: Log metadata (optional).
      *
      * Any data after the log string is considered metadata and is OPTIONAL.
-     * Pretense of `SPINEL_CAP_OPENTHREAD_LOG_METADATA` capability
+     * Presence of `SPINEL_CAP_OPENTHREAD_LOG_METADATA` capability
      * indicates that OpenThread log metadata format is used as defined
      * below:
      *

src/posix/platform/flash.h

@@ -71,7 +71,7 @@ uint32_t utilsFlashGetSize(void);
  *
  * @retval OT_ERROR_NONE           Erase flash operation is started.
  * @retval OT_ERROR_FAILED         Erase flash operation is not started.
- * @retval OT_ERROR_INVALID_ARGS    aAddress is out of range of flash or not aligend.
+ * @retval OT_ERROR_INVALID_ARGS    aAddress is out of range of flash or not aligned.
  */
 otError utilsFlashErasePage(uint32_t aAddress);
 

src/posix/platform/openthread-system.h

@@ -45,7 +45,7 @@ extern "C" {
  * This function performs all platform-specific initialization of OpenThread's drivers.
  *
  * @note This function is not called by the OpenThread library. Instead, the system/RTOS should call this function
- *       when initialization of OpenThread's drivers is most approriate.
+ *       when initialization of OpenThread's drivers is most appropriate.
  *
  * @param[in]  argc  Number of arguments in @p argv.
  * @param[in]  argv  Argument vector.

src/posix/platform/radio_spinel.hpp

@@ -312,7 +312,7 @@ public:
     otError Transmit(otRadioFrame &aFrame);
 
     /**
-     * This method swithes the radio state from Sleep to Receive.
+     * This method switches the radio state from Sleep to Receive.
      *
      * @param[in]  aChannel   The channel to use for receiving.
      *
@@ -434,7 +434,7 @@ public:
 private:
     enum
     {
-        kMaxSpinelFrame = 2048, ///< Max size in bytes for transfering spinel frames.
+        kMaxSpinelFrame = 2048, ///< Max size in bytes for transferring spinel frames.
         kMaxWaitTime    = 2000, ///< Max time to wait for response in milliseconds.
     };
 
@@ -555,7 +555,7 @@ private:
     spinel_tid_t      mWaitingTid;      ///< The transaction id of current transaction.
     spinel_prop_key_t mWaitingKey;      ///< The property key of current transaction.
     const char *      mPropertyFormat;  ///< The spinel property format of current transaction.
-    va_list           mPropertyArgs;    ///< The arguments pack or unpack spinel property of current transcation.
+    va_list           mPropertyArgs;    ///< The arguments pack or unpack spinel property of current transaction.
     uint32_t          mExpectedCommand; ///< Expected response command of current transaction.
     otError           mError;           ///< The result of current transaction.