add doxygen

Author: paul-szczepanek-arm

features/FEATURE_BLE/targets/TARGET_CORDIO_LL/stack_adaptation/fake_lhci_drv.h

@@ -21,8 +21,26 @@
 extern "C" {
 #endif
 
+/**
+ * Send bytes from host to controller.
+ *
+ * @param prot Protocol, must be CHCI_TR_PROT_BLE.
+ * @param type HCI_ACL_TYPE or HCI_CMD_TYPE.
+ * @param len Buffer length.
+ * @param pData Data to be sent.
+ * @return Number of bytes processed.
+ */
 uint16_t FakeChciTrRead(uint8_t prot, uint8_t type, uint16_t len, uint8_t *pData);
 
+/**
+ * Send bytes from controller to host.
+ *
+ * @param prot Protocol, must be CHCI_TR_PROT_BLE.
+ * @param type HCI_ACL_TYPE or HCI_EVT_TYPE.
+ * @param len Buffer length.
+ * @param pData Data to be sent.
+ * @return Number of bytes processed.
+ */
 uint16_t FakeChciTrWrite(uint8_t prot, uint8_t type, uint16_t len, uint8_t *pData);
 
 #ifdef __cplusplus