-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);