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comparison cp2102/read_eeprom_main.c @ 53:d4d3531d342a

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cp2102-read-eeprom program written, compiles
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 11 Sep 2023 18:49:07 +0000
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children a378bf95c26c
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52:61cdcf2eb17b 53:d4d3531d342a
1 /*
2 * This program locates a CP2102 device via libusb, reads its internal
3 * 1024-byte EEPROM and emits (on stdout) an image of this EEPROM
4 * in the same Intel HEX format as used by cp210x-program-1.0,
5 * the Python-language tool from 2014.
6 */
7
8 #include <sys/types.h>
9 #include <string.h>
10 #include <strings.h>
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <unistd.h>
14 #include <usb.h>
15 #include "../libuwrap/find_dev.h"
16 #include "cp210x_defs.h"
17
18 u_char eeprom[SIZE_EEPROM];
19
20 main(argc, argv)
21 char **argv;
22 {
23 struct usb_device *dev;
24 usb_dev_handle *usbh;
25
26 if (argc != 2) {
27 fprintf(stderr, "usage: %s device-selector\n", argv[0]);
28 exit(1);
29 }
30 dev = find_usbdev_by_desc_string(argv[1]);
31 if (!dev) {
32 fprintf(stderr, "error: specified USB device not found\n");
33 exit(1);
34 }
35 usbh = usb_open(dev);
36 if (!usbh) {
37 fprintf(stderr, "error: usb_open() failed\n");
38 exit(1);
39 }
40 read_eeprom(usbh);
41 usb_close(usbh);
42 intel_hex_out(eeprom, stdout);
43 exit(0);
44 }