diff --git a/src/jtag3.h b/src/jtag3.h
index c130cb27..18e81023 100644
--- a/src/jtag3.h
+++ b/src/jtag3.h
@@ -24,44 +24,37 @@
 extern "C" {
 #endif
 
-int  jtag3_open_common(PROGRAMMER *pgm, const char *port, int mode_switch);
-int  jtag3_send(const PROGRAMMER *pgm, unsigned char *data, size_t len);
-int  jtag3_recv(const PROGRAMMER *pgm, unsigned char **msg);
-void jtag3_close(PROGRAMMER * pgm);
-int  jtag3_getsync(const PROGRAMMER *pgm, int mode);
-int  jtag3_getparm(const PROGRAMMER *pgm, unsigned char scope,
-                   unsigned char section, unsigned char parm,
-                   unsigned char *value, unsigned char length);
-int jtag3_setparm(const PROGRAMMER *pgm, unsigned char scope,
-                  unsigned char section, unsigned char parm,
-                  unsigned char *value, unsigned char length);
-int jtag3_command(const PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
-                  unsigned char **resp, const char *descr);
-void jtag3_display(const PROGRAMMER *pgm, const char *p);
-void jtag3_print_parms1(const PROGRAMMER *pgm, const char *p, FILE *fp);
-int jtag3_set_vtarget(const PROGRAMMER *pgm, double voltage);
-int jtag3_get_vtarget(const PROGRAMMER *pgm, double *voltage);
-extern const char jtag3_desc[];
-extern const char jtag3_dw_desc[];
-extern const char jtag3_pdi_desc[];
-extern const char jtag3_updi_desc[];
-extern const char jtag3_tpi_desc[];
-void jtag3_initpgm(PROGRAMMER *pgm);
-void jtag3_dw_initpgm(PROGRAMMER *pgm);
-void jtag3_pdi_initpgm(PROGRAMMER *pgm);
-void jtag3_updi_initpgm(PROGRAMMER *pgm);
-void jtag3_tpi_initpgm(PROGRAMMER *pgm);
+  int jtag3_open_common(PROGRAMMER *pgm, const char *port, int mode_switch);
+  int jtag3_send(const PROGRAMMER *pgm, unsigned char *data, size_t len);
+  int jtag3_recv(const PROGRAMMER *pgm, unsigned char **msg);
+  void jtag3_close(PROGRAMMER *pgm);
+  int jtag3_getsync(const PROGRAMMER *pgm, int mode);
+  int jtag3_getparm(const PROGRAMMER *pgm, unsigned char scope,
+    unsigned char section, unsigned char parm, unsigned char *value, unsigned char length);
+  int jtag3_setparm(const PROGRAMMER *pgm, unsigned char scope,
+    unsigned char section, unsigned char parm, unsigned char *value, unsigned char length);
+  int jtag3_command(const PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen,
+    unsigned char **resp, const char *descr);
+  void jtag3_display(const PROGRAMMER *pgm, const char *p);
+  void jtag3_print_parms1(const PROGRAMMER *pgm, const char *p, FILE *fp);
+  int jtag3_set_vtarget(const PROGRAMMER *pgm, double voltage);
+  int jtag3_get_vtarget(const PROGRAMMER *pgm, double *voltage);
+  extern const char jtag3_desc[];
+  extern const char jtag3_dw_desc[];
+  extern const char jtag3_pdi_desc[];
+  extern const char jtag3_updi_desc[];
+  extern const char jtag3_tpi_desc[];
+  void jtag3_initpgm(PROGRAMMER *pgm);
+  void jtag3_dw_initpgm(PROGRAMMER *pgm);
+  void jtag3_pdi_initpgm(PROGRAMMER *pgm);
+  void jtag3_updi_initpgm(PROGRAMMER *pgm);
+  void jtag3_tpi_initpgm(PROGRAMMER *pgm);
 
-/*
- * These functions are referenced from stk500v2.c for JTAGICE3 in
- * one of the STK500v2 modi.
- */
-void jtag3_setup(PROGRAMMER * pgm);
-void jtag3_teardown(PROGRAMMER * pgm);
+  // These functions are referenced from stk500v2.c for JTAGICE3 in one of the STK500v2 modi
+  void jtag3_setup(PROGRAMMER *pgm);
+  void jtag3_teardown(PROGRAMMER *pgm);
 
 #ifdef __cplusplus
 }
 #endif
-
 #endif
-