+/*!
+ * @brief Get the menu language of the device with the given logical address
+ * @param iLogicalAddress The device to get the menu language for.
+ * @param language The requested menu language.
+ * @return True when fetched succesfully, false otherwise.
+ */
+#ifdef __cplusplus
+extern DECLSPEC int cec_get_device_menu_language(CEC::cec_logical_address iLogicalAddress, CEC::cec_menu_language *language);
+#else
+extern DECLSPEC int cec_get_device_menu_language(cec_logical_address iLogicalAddress, cec_menu_language *language);
+#endif
+
+/*!
+ * @brief Get the vendor ID of the device with the given logical address.
+ * @param iLogicalAddress The device to get the vendor id for.
+ * @return The vendor ID or 0 if it wasn't found.
+ */
+#ifdef __cplusplus
+extern DECLSPEC uint64_t cec_get_device_vendor_id(CEC::cec_logical_address iLogicalAddress);
+#else
+extern DECLSPEC uint64_t cec_get_device_vendor_id(cec_logical_address iLogicalAddress);
+#endif
+
+/*!
+ * @brief Get the power status of the device with the given logical address.
+ * @param iLogicalAddress The device to get the power status for.
+ * @return The power status or CEC_POWER_STATUS_UNKNOWN if it wasn't found.
+ */
+#ifdef __cplusplus
+extern DECLSPEC CEC::cec_power_status cec_get_device_power_status(CEC::cec_logical_address iLogicalAddress);
+#else
+extern DECLSPEC cec_power_status cec_get_device_power_status(cec_logical_address iLogicalAddress);
+#endif
+
+/*!
+ * @brief Sends a POLL message to a device.
+ * @param iAddress The device to send the message to.
+ * @return True if the POLL was acked, false otherwise.
+ */
+#ifdef __cplusplus
+extern DECLSPEC int cec_poll_device(CEC::cec_logical_address iLogicalAddress);
+#else
+extern DECLSPEC int cec_poll_device(cec_logical_address iLogicalAddress);
+#endif
+