-void cli_hexdump(void* data, uint16_t length);
-void echo_ctrl(char* s);
+void cli_hexdump_byte(uint8_t byte);
+void cli_hexdump(const void *data, size_t length);
+void cli_hexdump_rev(const void *data, size_t length);
+void cli_hexdump2(const void *data, size_t length);
+void cli_hexdump_block(const void *data, size_t length, uint8_t indent, uint8_t width);
+
+void echo_ctrl(char *s);