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comparison lcdtest/main.c @ 23:2127e6fdeab2

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lcdtest: simplify USB device selection by serial string
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 14 Apr 2018 06:32:41 +0000
parents e9df47110181
children
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22:e9df47110181 23:2127e6fdeab2
2 #include <stdio.h> 2 #include <stdio.h>
3 #include <stdlib.h> 3 #include <stdlib.h>
4 #include <unistd.h> 4 #include <unistd.h>
5 #include <ftdi.h> 5 #include <ftdi.h>
6 6
7 char *device_selector = "i:0x0403:0x7157"; 7 char *device_serial;
8 struct ftdi_context ftdi; 8 struct ftdi_context ftdi;
9 9
10 process_cmdline(argc, argv) 10 process_cmdline(argc, argv)
11 char **argv; 11 char **argv;
12 { 12 {
14 extern char *optarg; 14 extern char *optarg;
15 15
16 while ((c = getopt(argc, argv, "d:")) != EOF) { 16 while ((c = getopt(argc, argv, "d:")) != EOF) {
17 switch (c) { 17 switch (c) {
18 case 'd': 18 case 'd':
19 device_selector = optarg; 19 device_serial = optarg;
20 continue; 20 continue;
21 default: 21 default:
22 /* error msg already printed */ 22 /* error msg already printed */
23 exit(1); 23 exit(1);
24 } 24 }
43 { 43 {
44 char command[512]; 44 char command[512];
45 45
46 process_cmdline(argc, argv); 46 process_cmdline(argc, argv);
47 ftdi_init(&ftdi); 47 ftdi_init(&ftdi);
48 if (ftdi_usb_open_string(&ftdi, device_selector) < 0) { 48 if (ftdi_usb_open_desc(&ftdi, 0x0403, 0x7157, 0, device_serial) < 0) {
49 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str); 49 fprintf(stderr, "FTDI USB open failed: %s\n", ftdi.error_str);
50 exit(1); 50 exit(1);
51 } 51 }
52 if (ftdi_set_bitmode(&ftdi, 0, BITMODE_MCU) < 0) { 52 if (ftdi_set_bitmode(&ftdi, 0, BITMODE_MCU) < 0) {
53 fprintf(stderr, "unable to enter MCU mode: %s\n", 53 fprintf(stderr, "unable to enter MCU mode: %s\n",