Wang Xinglu
High level Bluetooth Low Energy API and radio abstraction layer
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BLE_API
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Bluetooth Low Energy
Diff: ble/GattCharacteristic.h
- Revision:
- 1163:7a1cfb9ae86e
- Parent:
- 1132:6362b7c2fdff
- Child:
- 1179:4ab722f8dca0
diff -r 2cb412b35d95 -r 7a1cfb9ae86e ble/GattCharacteristic.h
--- a/ble/GattCharacteristic.h Wed Apr 06 19:14:50 2016 +0100
+++ b/ble/GattCharacteristic.h Wed Apr 06 19:14:51 2016 +0100
@@ -99,15 +99,13 @@
UUID_RSC_MEASUREMENT_CHAR = 0x2A53
};
- /**************************************************************************/
- /*!
- \brief Standard GATT characteristic presentation format unit types.
- These unit types are used to describe what the raw numeric
- data in a characteristic actually represents.
-
- \note See https://developer.bluetooth.org/gatt/units/Pages/default.aspx
- */
- /**************************************************************************/
+ /**
+ * @brief Standard GATT characteristic presentation format unit types.
+ * These unit types are used to describe what the raw numeric
+ * data in a characteristic actually represents.
+ *
+ * @note See https://developer.bluetooth.org/gatt/units/Pages/default.aspx
+ */
enum {
BLE_GATT_UNIT_NONE = 0x2700, /**< No specified unit type. */
BLE_GATT_UNIT_LENGTH_METRE = 0x2701, /**< Length, metre. */
@@ -220,14 +218,13 @@
BLE_GATT_UNIT_IRRADIANCE_WATT_PER_SQUARE_METRE = 0x27B6 /**< */
};
- /**************************************************************************/
- /*!
- \brief Standard GATT number types.
-
- \note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.2
- \note See http://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
- */
- /**************************************************************************/
+ /**
+ * @brief Standard GATT number types.
+ *
+ * @note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.2.
+ *
+ * @note See http://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
+ */
enum {
BLE_GATT_FORMAT_RFU = 0x00, /**< Reserved for future use. */
BLE_GATT_FORMAT_BOOLEAN = 0x01, /**< Boolean. */
@@ -259,14 +256,12 @@
BLE_GATT_FORMAT_STRUCT = 0x1B /**< Opaque Structure. */
};
- /**************************************************************************/
/*!
- \brief Standard GATT characteristic properties.
-
- \note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.1.1
- and Section 3.3.3.1 for Extended Properties
- */
- /**************************************************************************/
+ * @brief Standard GATT characteristic properties.
+ *
+ * @note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.1.1
+ * and Section 3.3.3.1 for Extended Properties.
+ */
enum Properties_t {
BLE_GATT_CHAR_PROPERTIES_NONE = 0x00,
BLE_GATT_CHAR_PROPERTIES_BROADCAST = 0x01, /**< Permits broadcasts of the characteristic value using the Server Characteristic Configuration descriptor. */
@@ -279,51 +274,50 @@
BLE_GATT_CHAR_PROPERTIES_EXTENDED_PROPERTIES = 0x80 /**< Additional characteristic properties are defined in the Characteristic Extended Properties descriptor */
};
- /**************************************************************************/
- /*!
- \brief GATT presentation format wrapper
-
- \note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5
- \note See https://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
- */
- /**************************************************************************/
+ /**
+ * @brief GATT presentation format wrapper.
+ *
+ * @note See Bluetooth Specification 4.0 (Vol. 3), Part G, Section 3.3.3.5.
+ *
+ * @note See https://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.characteristic_presentation_format.xml
+ */
struct PresentationFormat_t {
- uint8_t gatt_format; /**< Format of the value; see @ref ble_gatt_format_t. */
+ uint8_t gatt_format; /**< Format of the value. */
int8_t exponent; /**< Exponent for integer data types. Example: if Exponent = -3 and the char value is 3892, the actual value is 3.892 */
- uint16_t gatt_unit; /**< UUID from Bluetooth Assigned Numbers; see @ref ble_gatt_unit_t. */
- uint8_t gatt_namespace; /**< Namespace from Bluetooth Assigned Numbers, normally '1'; see @ref BLE_GATT_CPF_NAMESPACES. */
- uint16_t gatt_nsdesc; /**< Namespace description from Bluetooth Assigned Numbers, normally '0'; see @ref BLE_GATT_CPF_NAMESPACES. */
+ uint16_t gatt_unit; /**< UUID from Bluetooth Assigned Numbers. */
+ uint8_t gatt_namespace; /**< Namespace from Bluetooth Assigned Numbers, normally '1'. */
+ uint16_t gatt_nsdesc; /**< Namespace description from Bluetooth Assigned Numbers, normally '0'. */
};
/**
- * @brief Creates a new GattCharacteristic using the specified 16-bit
- * UUID, value length, and properties.
- *
- * @note The UUID value must be unique in the service and is normally >1.
+ * @brief Creates a new GattCharacteristic using the specified 16-bit
+ * UUID, value length, and properties.
*
- * @param[in] uuid
- * The UUID to use for this characteristic.
- * @param[in] valuePtr
- * The memory holding the initial value. The value is copied
- * into the stack when the enclosing service is added, and
- * is thereafter maintained internally by the stack.
- * @param[in] len
- * The length in bytes of this characteristic's value.
- * @param[in] maxLen
- * The max length in bytes of this characteristic's value.
- * @param[in] hasVariableLen
- * Whether the attribute's value length changes over time.
- * @param[in] props
- * The 8-bit field containing the characteristic's properties.
- * @param[in] descriptors
- * A pointer to an array of descriptors to be included within
- * this characteristic. The memory for the descriptor array is
- * owned by the caller, and should remain valid at least until
- * the enclosing service is added to the GATT table.
- * @param[in] numDescriptors
- * The number of descriptors in the previous array.
+ * @param[in] uuid
+ * The UUID to use for this characteristic.
+ * @param[in] valuePtr
+ * The memory holding the initial value. The value is copied
+ * into the stack when the enclosing service is added, and
+ * is thereafter maintained internally by the stack.
+ * @param[in] len
+ * The length in bytes of this characteristic's value.
+ * @param[in] maxLen
+ * The max length in bytes of this characteristic's value.
+ * @param[in] props
+ * The 8-bit field containing the characteristic's properties.
+ * @param[in] descriptors
+ * A pointer to an array of descriptors to be included within
+ * this characteristic. The memory for the descriptor array is
+ * owned by the caller, and should remain valid at least until
+ * the enclosing service is added to the GATT table.
+ * @param[in] numDescriptors
+ * The number of descriptors in the previous array.
+ * @param[in] hasVariableLen
+ * Whether the attribute's value length changes over time.
*
- * @NOTE: If valuePtr == NULL, length == 0, and properties == READ
+ * @note The UUID value must be unique in the service and is normally >1.
+ *
+ * @note If valuePtr == NULL, length == 0, and properties == READ
* for the value attribute of a characteristic, then that particular
* characteristic may be considered optional and dropped while
* instantiating the service with the underlying BLE stack.
@@ -350,9 +344,12 @@
public:
/**
- * Set up the minimum security (mode and level) requirements for access to the characteristic's value attribute.
+ * Set up the minimum security (mode and level) requirements for access to
+ * the characteristic's value attribute.
*
- * @param securityMode Can be one of encryption or signing, with or without protection for man in the middle attacks (MITM).
+ * @param[in] securityMode
+ * Can be one of encryption or signing, with or without
+ * protection for man in the middle attacks (MITM).
*/
void requireSecurity(SecurityManager::SecurityMode_t securityMode) {
_requiredSecurity = securityMode;
@@ -360,21 +357,61 @@
public:
/**
- * Authorization.
+ * Set up callback that will be triggered before the GATT Client is allowed
+ * to write this characteristic. The handler will determine the
+ * authorization reply for the write.
+ *
+ * @param[in] callback
+ * Event handler being registered.
*/
void setWriteAuthorizationCallback(void (*callback)(GattWriteAuthCallbackParams *)) {
writeAuthorizationCallback.attach(callback);
enabledWriteAuthorization = true;
}
+
+ /**
+ * Same as GattCharacrteristic::setWriteAuthorizationCallback(), but allows
+ * the possibility to add an object reference and member function as
+ * handler for connection event callbacks.
+ *
+ * @param[in] object
+ * Pointer to the object of a class defining the member callback
+ * function (@p member).
+ * @param[in] member
+ * The member callback (within the context of an object) to be
+ * invoked.
+ */
template <typename T>
void setWriteAuthorizationCallback(T *object, void (T::*member)(GattWriteAuthCallbackParams *)) {
writeAuthorizationCallback.attach(object, member);
enabledWriteAuthorization = true;
}
+
+ /**
+ * Set up callback that will be triggered before the GATT Client is allowed
+ * to read this characteristic. The handler will determine the
+ * authorizaion reply for the read.
+ *
+ * @param[in] callback
+ * Event handler being registered.
+ */
void setReadAuthorizationCallback(void (*callback)(GattReadAuthCallbackParams *)) {
readAuthorizationCallback.attach(callback);
enabledReadAuthorization = true;
}
+
+ /**
+ * Same as GattCharacrteristic::setReadAuthorizationCallback(), but allows
+ * the possibility to add an object reference and member function as
+ * handler for connection event callbacks.
+ *
+ * @param[in] object
+ * Pointer to the object of a class defining the member callback
+ * function (@p member).
+ * @param[in] member
+ * The member callback (within the context of an object) to be
+ * invoked.
+ */
template <typename T>
void setReadAuthorizationCallback(T *object, void (T::*member)(GattReadAuthCallbackParams *)) {
readAuthorizationCallback.attach(object, member);
@@ -382,10 +419,16 @@
}
/**
- * Helper function meant to be called from the guts of the BLE stack to
- * determine the authorization reply for a write request.
- * @param params To capture the context of the write-auth request. Also contains an out-parameter for reply.
- * @return true if the write is authorized to proceed.
+ * Helper that calls the registered handler to determine the authorization
+ * reply for a write request. This function is meant to be called from the
+ * BLE stack specific implementation.
+ *
+ * @param[in] params
+ * To capture the context of the write-auth request. Also
+ * contains an out-parameter for reply.
+ *
+ * @return A GattAuthCallbackReply_t value indicating whether authorization
+ * is granted.
*/
GattAuthCallbackReply_t authorizeWrite(GattWriteAuthCallbackParams *params) {
if (!isWriteAuthorizationEnabled()) {
@@ -398,20 +441,24 @@
}
/**
- * Helper function meant to be called from the guts of the BLE stack to
- * determine the authorization reply for a read request.
- * @param params To capture the context of the read-auth request.
+ * Helper that calls the registered handler to determine the authorization
+ * reply for a read request. This function is meant to be called from the
+ * BLE stack specific implementation.
*
- * @NOTE: To authorize or deny the read the params->authorizationReply field
+ * @param[in] params
+ * To capture the context of the read-auth request.
+ *
+ * @return A GattAuthCallbackReply_t value indicating whether authorization
+ * is granted.
+ *
+ * @note To authorize or deny the read the params->authorizationReply field
* should be set to true (authorize) or false (deny).
*
- * If the read is approved and params->data is unchanged (NULL),
+ * @note If the read is approved and params->data is unchanged (NULL),
* the current characteristic value will be used.
*
- * If the read is approved, a new value can be provided by setting
+ * @note If the read is approved, a new value can be provided by setting
* the params->data pointer and params->len fields.
- *
- * @return true if the read is authorized to proceed.
*/
GattAuthCallbackReply_t authorizeRead(GattReadAuthCallbackParams *params) {
if (!isReadAuthorizationEnabled()) {
@@ -423,17 +470,96 @@
return params->authorizationReply;
}
- /* accessors */
public:
- GattAttribute& getValueAttribute() {return _valueAttribute; }
- const GattAttribute& getValueAttribute() const {return _valueAttribute; }
- GattAttribute::Handle_t getValueHandle(void) const {return getValueAttribute().getHandle();}
- uint8_t getProperties(void) const {return _properties; }
- SecurityManager::SecurityMode_t getRequiredSecurity() const {return _requiredSecurity; }
- uint8_t getDescriptorCount(void) const {return _descriptorCount; }
- bool isReadAuthorizationEnabled() const {return enabledReadAuthorization; }
- bool isWriteAuthorizationEnabled() const {return enabledWriteAuthorization; }
+ /**
+ * Get the characteristic's value attribute.
+ *
+ * @return A reference to the characteristic's value attribute.
+ */
+ GattAttribute& getValueAttribute() {
+ return _valueAttribute;
+ }
+
+ /**
+ * A const alternative to GattCharacteristic::getValueAttribute().
+ *
+ * @return A const reference to the characteristic's value attribute.
+ */
+ const GattAttribute& getValueAttribute() const {
+ return _valueAttribute;
+ }
+
+ /**
+ * Get the characteristic's value attribute handle in the ATT table.
+ *
+ * @return The value attribute handle.
+ *
+ * @note The attribute handle is typically assigned by the underlying BLE
+ * stack.
+ */
+ GattAttribute::Handle_t getValueHandle(void) const {
+ return getValueAttribute().getHandle();
+ }
+
+ /**
+ * Get the characteristic's propertied. Refer to
+ * GattCharacteristic::Properties_t.
+ *
+ * @return The characteristic's properties.
+ */
+ uint8_t getProperties(void) const {
+ return _properties;
+ }
+ /**
+ * Get the characteristic's required security.
+ *
+ * @return The characteristic's required security.
+ */
+ SecurityManager::SecurityMode_t getRequiredSecurity() const {
+ return _requiredSecurity;
+ }
+
+ /**
+ * Get the total number of descriptors within this characteristic.
+ *
+ * @return The total number of descriptors.
+ */
+ uint8_t getDescriptorCount(void) const {
+ return _descriptorCount;
+ }
+
+ /**
+ * Check whether read authorization is enabled i.e. check whether a
+ * read authorization callback was previously registered. Refer to
+ * GattCharacteristic::setReadAuthorizationCallback().
+ *
+ * @return true if read authorization is enabled, false otherwise.
+ */
+ bool isReadAuthorizationEnabled() const {
+ return enabledReadAuthorization;
+ }
+
+ /**
+ * Check whether write authorization is enabled i.e. check whether a
+ * write authorization callback was previously registered. Refer to
+ * GattCharacteristic::setReadAuthorizationCallback().
+ *
+ * @return true if write authorization is enabled, false otherwise.
+ */
+ bool isWriteAuthorizationEnabled() const {
+ return enabledWriteAuthorization;
+ }
+
+ /**
+ * Get this characteristic's descriptor at a specific index.
+ *
+ * @param[in] index
+ * The descriptor's index.
+ *
+ * @return A pointer the requested descriptor if @p index contains a valid
+ * descriptor, or NULL otherwise.
+ */
GattAttribute *getDescriptor(uint8_t index) {
if (index >= _descriptorCount) {
return NULL;
@@ -443,15 +569,45 @@
}
private:
+ /**
+ * Attribute that contains the actual value of this characteristic.
+ */
GattAttribute _valueAttribute;
+ /**
+ * The characteristic's properties. Refer to
+ * GattCharacteristic::Properties_t.
+ */
uint8_t _properties;
+ /**
+ * The characteristic's required security.
+ */
SecurityManager::SecurityMode_t _requiredSecurity;
+ /**
+ * The characteristic's descriptor attributes.
+ */
GattAttribute **_descriptors;
+ /**
+ * The number of descriptors in this characteristic.
+ */
uint8_t _descriptorCount;
+ /**
+ * Whether read authorization is enabled i.e. whether there is a registered
+ * callback to determine read authorization reply.
+ */
bool enabledReadAuthorization;
+ /**
+ * Whether write authorization is enabled i.e. whether there is a registered
+ * callback to determine write authorization reply.
+ */
bool enabledWriteAuthorization;
+ /**
+ * The registered callback handler for read authorization reply.
+ */
FunctionPointerWithContext<GattReadAuthCallbackParams *> readAuthorizationCallback;
+ /**
+ * The registered callback handler for write authorization reply.
+ */
FunctionPointerWithContext<GattWriteAuthCallbackParams *> writeAuthorizationCallback;
private:
@@ -460,9 +616,33 @@
GattCharacteristic& operator=(const GattCharacteristic &);
};
+/**
+ * Helper class to construct a read-only GattCharacteristic.
+ */
template <typename T>
class ReadOnlyGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a ReadOnlyGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to the characterisitic's initial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of ReadOnlyGattCharacteristic have a fixed length
+ * attribute value that equals sizeof(T). For a variable length
+ * alternative use GattCharacteristic directly.
+ */
ReadOnlyGattCharacteristic<T>(const UUID &uuid,
T *valuePtr,
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -474,9 +654,33 @@
}
};
+/**
+ * Helper class to construct a write-only GattCharacteristic.
+ */
template <typename T>
class WriteOnlyGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a WriteOnlyGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to the characterisitic's initial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of WriteOnlyGattCharacteristic have variable length
+ * attribute value with maximum size equal to sizeof(T). For a fixed length
+ * alternative use GattCharacteristic directly.
+ */
WriteOnlyGattCharacteristic<T>(const UUID &uuid,
T *valuePtr,
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -488,9 +692,34 @@
}
};
+/**
+ * Helper class to construct a readable and writable GattCharacteristic.
+ */
template <typename T>
class ReadWriteGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a ReadWriteGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to the characterisitic's initial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE |
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of ReadWriteGattCharacteristic have variable length
+ * attribute value with maximum size equal to sizeof(T). For a fixed length
+ * alternative use GattCharacteristic directly.
+ */
ReadWriteGattCharacteristic<T>(const UUID &uuid,
T *valuePtr,
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -502,9 +731,35 @@
}
};
+/**
+ * Helper class to construct a write-only GattCharacteristic with an array
+ * value.
+ */
template <typename T, unsigned NUM_ELEMENTS>
class WriteOnlyArrayGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a WriteOnlyGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to an array of length NUM_ELEMENTS containing the
+ * characteristic's intitial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of WriteOnlyGattCharacteristic have variable length
+ * attribute value with maximum size equal to sizeof(T) * NUM_ELEMENTS.
+ * For a fixed length alternative use GattCharacteristic directly.
+ */
WriteOnlyArrayGattCharacteristic<T, NUM_ELEMENTS>(const UUID &uuid,
T valuePtr[NUM_ELEMENTS],
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -516,9 +771,35 @@
}
};
+/**
+ * Helper class to construct a read-only GattCharacteristic with an array
+ * value.
+ */
template <typename T, unsigned NUM_ELEMENTS>
class ReadOnlyArrayGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a ReadOnlyGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to an array of length NUM_ELEMENTS containing the
+ * characteristic's intitial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of ReadOnlyGattCharacteristic have fixed length
+ * attribute value that equals sizeof(T) * NUM_ELEMENTS.
+ * For a variable length alternative use GattCharacteristic directly.
+ */
ReadOnlyArrayGattCharacteristic<T, NUM_ELEMENTS>(const UUID &uuid,
T valuePtr[NUM_ELEMENTS],
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -530,9 +811,36 @@
}
};
+/**
+ * Helper class to construct a readable and writable GattCharacteristic with an array
+ * value.
+ */
template <typename T, unsigned NUM_ELEMENTS>
class ReadWriteArrayGattCharacteristic : public GattCharacteristic {
public:
+ /**
+ * Construct a ReadWriteGattCharacteristic.
+ *
+ * @param[in] uuid
+ * The characteristic's UUID.
+ * @param[in] valuePtr
+ * Pointer to an array of length NUM_ELEMENTS containing the
+ * characteristic's intitial value.
+ * @param[in] additionalProperties
+ * Additional characterisitic properties. By default, the
+ * properties are set to
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_WRITE |
+ * Properties_t::BLE_GATT_CHAR_PROPERTIES_READ.
+ * @param[in] descriptors
+ * An array of pointers to descriptors to be added to the new
+ * characteristic.
+ * @param[in] numDescriptors
+ * The total number of descriptors in @p descriptors.
+ *
+ * @note Instances of ReadWriteGattCharacteristic have variable length
+ * attribute value with maximum size equal to sizeof(T) * NUM_ELEMENTS.
+ * For a fixed length alternative use GattCharacteristic directly.
+ */
ReadWriteArrayGattCharacteristic<T, NUM_ELEMENTS>(const UUID &uuid,
T valuePtr[NUM_ELEMENTS],
uint8_t additionalProperties = BLE_GATT_CHAR_PROPERTIES_NONE,
@@ -544,4 +852,4 @@
}
};
-#endif // ifndef __GATT_CHARACTERISTIC_H__
\ No newline at end of file
+#endif /* ifndef __GATT_CHARACTERISTIC_H__ */
\ No newline at end of file