Prepare RFID compilation in firmware mode

[librfid] / include / librfid / rfid_protocol_tcl.h

diff --git a/include/librfid/rfid_protocol_tcl.h b/include/librfid/rfid_protocol_tcl.h
index 180c008..2ee1c27 100644 (file)
--- a/include/librfid/rfid_protocol_tcl.h
+++ b/include/librfid/rfid_protocol_tcl.h
@@ -36,7 +36,8 @@ struct tcl_handle {
        unsigned int toggle;    /* send toggle with next frame */
 
        unsigned int ats_len;
-       unsigned char ats[0];
+       unsigned char ats[256]; /* ATS cannot be bigger than FSD-2 bytes,
+                                  according to ISO 14443-4 5.2.2 */
 };
 
 enum tcl_handle_flags {
@@ -63,7 +64,7 @@ enum tcl_pcd_state {
        TCL_STATE_DESELECTED,           /* card deselected or HLTA'd */
 };
 
-struct rfid_protocol rfid_protocol_tcl;
+extern const struct rfid_protocol rfid_protocol_tcl;
 
 #endif /* __LIBRFID__ */