FreeCalypso > hg > fc-usbser-tools
view fteeprom/fteeprom-read.c @ 16:1d76deae1e74
fteeprom-read: convert to new local libs
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 07 Sep 2023 08:56:57 +0000 |
parents | 11b8a30333b3 |
children | bb1d0956b0a8 |
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/* * This program connects to an FTDI chip via libusb and reads out its EEPROM. * The present version has been converted to use our local libraries * (libftmini and libuwrap) instead of libftdi - thus the external dependency * is only libusb. */ #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 "../libuwrap/open_close.h" #include "../libftmini/eeprom_func.h" char *device_selector; unsigned eeprom_size = 64; process_cmdline(argc, argv) char **argv; { int c; extern int optind; while ((c = getopt(argc, argv, "bB")) != EOF) { switch (c) { case 'b': eeprom_size = 128; continue; case 'B': eeprom_size = 256; continue; default: /* error msg already printed */ exit(1); } } if (argc != optind + 1) { fprintf(stderr, "usage: %s [options] device-selector\n", argv[0]); exit(1); } device_selector = argv[optind]; } main(argc, argv) char **argv; { struct usb_device *dev; usb_dev_handle *usbh; u_short word; unsigned n, col; process_cmdline(argc, argv); dev = find_usbdev_by_desc_string(device_selector); if (!dev) { fprintf(stderr, "error: specified USB device not found\n"); exit(1); } usbh = usbwrap_open_dev(dev, 1); for (n = 0; n < eeprom_size; n++) { word = ftmini_read_eeprom_loc(usbh, n); col = n & 7; if (col == 0) printf("%02X:", n * 2); printf(" %04X", word); if (col == 7) putchar('\n'); } usbwrap_close_dev(usbh); exit(0); }