| 1 | /* simple.c |
| 2 | |
| 3 | Simple libftdi usage example |
| 4 | |
| 5 | This program is distributed under the GPL, version 2 |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <stdlib.h> |
| 10 | #include <ftdi.h> |
| 11 | |
| 12 | int main(void) |
| 13 | { |
| 14 | int ret; |
| 15 | struct ftdi_context *ftdi; |
| 16 | struct ftdi_version_info version; |
| 17 | if ((ftdi = ftdi_new()) == 0) |
| 18 | { |
| 19 | fprintf(stderr, "ftdi_new failed\n"); |
| 20 | return EXIT_FAILURE; |
| 21 | } |
| 22 | |
| 23 | version = ftdi_get_library_version(); |
| 24 | printf("Initialized libftdi %s (major: %d, minor: %d, micro: %d, snapshot ver: %s)\n", |
| 25 | version.version_str, version.major, version.minor, version.micro, |
| 26 | version.snapshot_str); |
| 27 | |
| 28 | if ((ret = ftdi_usb_open(ftdi, 0x0403, 0x6001)) < 0) |
| 29 | { |
| 30 | fprintf(stderr, "unable to open ftdi device: %d (%s)\n", ret, ftdi_get_error_string(ftdi)); |
| 31 | ftdi_free(ftdi); |
| 32 | return EXIT_FAILURE; |
| 33 | } |
| 34 | |
| 35 | // Read out FTDIChip-ID of R type chips |
| 36 | if (ftdi->type == TYPE_R) |
| 37 | { |
| 38 | unsigned int chipid; |
| 39 | printf("ftdi_read_chipid: %d\n", ftdi_read_chipid(ftdi, &chipid)); |
| 40 | printf("FTDI chipid: %X\n", chipid); |
| 41 | } |
| 42 | |
| 43 | if ((ret = ftdi_usb_close(ftdi)) < 0) |
| 44 | { |
| 45 | fprintf(stderr, "unable to close ftdi device: %d (%s)\n", ret, ftdi_get_error_string(ftdi)); |
| 46 | ftdi_free(ftdi); |
| 47 | return EXIT_FAILURE; |
| 48 | } |
| 49 | |
| 50 | ftdi_free(ftdi); |
| 51 | |
| 52 | return EXIT_SUCCESS; |
| 53 | } |