Merge remote-tracking branch 'upstream/master' into hf_mf_sim

include/usb_cmd.h

@@ -34,6 +34,12 @@ typedef struct {
         uint32_t asDwords[USB_CMD_DATA_SIZE / 4];
     } d;
 } PACKED UsbCommand;
+
+#ifdef WITH_FPC_HOST
+// "Session" flag, to tell via which interface next msgs should be sent: USB or FPC USART
+extern bool reply_via_fpc;
+#endif
+
 // A struct used to send sample-configs over USB
 typedef struct {
     uint8_t decimation;