--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cp2102/file_rw_test.c	Mon Sep 11 19:45:56 2023 +0000
@@ -0,0 +1,22 @@
+/*
+ * This little program is a unit test for our Intel HEX reading function.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "cp210x_defs.h"
+
+u_char eeprom[SIZE_EEPROM];
+
+main(argc, argv)
+	char **argv;
+{
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s ihex-file\n", argv[0]);
+		exit(1);
+	}
+	read_intel_hex(argv[1]);
+	intel_hex_out(eeprom, stdout);
+	exit(0);
+}