--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cp2102/patch_ee_file.c	Thu Sep 28 01:37:43 2023 +0000
@@ -0,0 +1,35 @@
+/*
+ * This program reads a CP2102 EEPROM image from an Intel HEX file,
+ * applies patches to it from a patch specification file, and writes out
+ * a new Intel HEX image.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "cp210x_defs.h"
+
+u_char eeprom[SIZE_EEPROM];
+
+main(argc, argv)
+	char **argv;
+{
+	FILE *outf;
+
+	if (argc != 4) {
+		fprintf(stderr,
+			"usage: %s input-hex-file patch-spec output-hex-file\n",
+			argv[0]);
+		exit(1);
+	}
+	read_intel_hex(argv[1]);
+	apply_eeprom_patch_file(argv[2]);
+	outf = fopen(argv[3], "w");
+	if (!outf) {
+		perror(argv[3]);
+		exit(1);
+	}
+	intel_hex_out(eeprom, outf);
+	fclose(outf);
+	exit(0);
+}