--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cp2102/read_eeprom_main.c	Mon Sep 11 18:49:07 2023 +0000
@@ -0,0 +1,44 @@
+/*
+ * This program locates a CP2102 device via libusb, reads its internal
+ * 1024-byte EEPROM and emits (on stdout) an image of this EEPROM
+ * in the same Intel HEX format as used by cp210x-program-1.0,
+ * the Python-language tool from 2014.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+#include <strings.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <usb.h>
+#include "../libuwrap/find_dev.h"
+#include "cp210x_defs.h"
+
+u_char eeprom[SIZE_EEPROM];
+
+main(argc, argv)
+	char **argv;
+{
+	struct usb_device *dev;
+	usb_dev_handle *usbh;
+
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s device-selector\n", argv[0]);
+		exit(1);
+	}
+	dev = find_usbdev_by_desc_string(argv[1]);
+	if (!dev) {
+		fprintf(stderr, "error: specified USB device not found\n");
+		exit(1);
+	}
+	usbh = usb_open(dev);
+	if (!usbh) {
+		fprintf(stderr, "error: usb_open() failed\n");
+		exit(1);
+	}
+	read_eeprom(usbh);
+	usb_close(usbh);
+	intel_hex_out(eeprom, stdout);
+	exit(0);
+}