CRC optional, replaced by magic on USB

client/comms.h

@@ -44,6 +44,11 @@ typedef struct {
     bool block_after_ACK; // if true, block after receiving an ACK package
 } communication_arg_t;
 
+// Flags to tell where to add CRC on sent replies
+extern bool send_with_crc_on_usb;
+extern bool send_with_crc_on_fpc;
+// "Session" flag, to tell via which interface next msgs are sent: USB or FPC USART
+extern bool send_via_fpc;
 
 void SetOffline(bool value);
 bool IsOffline(void);