* issued if the host is currently allowing remote wakeup events from the device (i.e.,
* the \ref USB_RemoteWakeupEnabled flag is set). When the NO_DEVICE_REMOTE_WAKEUP compile
* time option is used, this macro is unavailable.
+ * \n
+ *
+ * \note The USB clock must be running for this function to operate. If the stack is initialized with
+ * the \ref USB_OPT_MANUAL_PLL option enabled, the user must ensure that the PLL is running
+ * before attempting to call this function.
*
* \see \ref Group_Descriptors for more information on the RMWAKEUP feature and device descriptors.
*/