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comparison fteeprom/fteeprom-erase.c @ 21:af801ab43a33

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fteeprom-erase: convert to new local libs
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 08 Sep 2023 23:47:50 +0000
parents 11b8a30333b3
children 2746b160afb7
comparison
equal deleted inserted replaced
20:43b8e88dae02 21:af801ab43a33
1 /*
2 * This program connects to an FTDI chip via libusb and commands that FTDI
3 * chip to erase its EEPROM in one fell swoop. This operation is known
4 * to work on FT2232C/D chips with 5V-powered EEPROMs, but is NOT appropriate
5 * for FT232R. This operation is also not recommended for external EEPROMs
6 * powered with 3.3V, as typically used with FT2232H.
7 *
8 * The present version has been converted to use our local libraries
9 * (libftmini and libuwrap) instead of libftdi - thus the external dependency
10 * is only libusb.
11 */
12
1 #include <sys/types.h> 13 #include <sys/types.h>
2 #include <stdio.h> 14 #include <stdio.h>
3 #include <stdlib.h> 15 #include <stdlib.h>
4 #include <unistd.h> 16 #include <unistd.h>
5 #include <ftdi.h> 17 #include <usb.h>
18 #include "../libuwrap/find_dev.h"
19 #include "../libuwrap/open_close.h"
20 #include "../libftmini/eeprom_func.h"
6 21
7 main(argc, argv) 22 main(argc, argv)
8 char **argv; 23 char **argv;
9 { 24 {
10 struct ftdi_context ftdi; 25 struct usb_device *dev;
26 usb_dev_handle *usbh;
11 27
12 if (argc != 2) { 28 if (argc != 2) {
13 fprintf(stderr, "usage: %s device-selector\n"); 29 fprintf(stderr, "usage: %s device-selector\n");
14 exit(1); 30 exit(1);
15 } 31 }
16 ftdi_init(&ftdi); 32 dev = find_usbdev_by_desc_string(argv[1]);
17 if (ftdi_usb_open_string(&ftdi, argv[1]) < 0) { 33 if (!dev) {
18 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str); 34 fprintf(stderr, "error: specified USB device not found\n");
19 exit(1); 35 exit(1);
20 } 36 }
21 if (ftdi_erase_eeprom(&ftdi) < 0) { 37 usbh = usbwrap_open_dev(dev, 1);
22 fprintf(stderr, "EEPROM write error: %s\n", ftdi.error_str); 38 ftmini_erase_eeprom(usbh);
23 exit(1); 39 usbwrap_close_dev(usbh);
24 }
25 ftdi_usb_close(&ftdi);
26 exit(0); 40 exit(0);
27 } 41 }