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comparison cp2102/read_partno.c @ 98:1cacc1ae56f0

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cp2102 tools: convert to -d option for non-default device
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 28 Sep 2023 04:45:13 +0000
parents 8d35346f1d46
children
comparison
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97:8d35346f1d46 98:1cacc1ae56f0
13 #include <usb.h> 13 #include <usb.h>
14 #include "../libuwrap/find_dev.h" 14 #include "../libuwrap/find_dev.h"
15 #include "cp210x_defs.h" 15 #include "cp210x_defs.h"
16 16
17 extern struct usb_device *find_cp2102_device(); 17 extern struct usb_device *find_cp2102_device();
18 char *device_selector;
19
20 process_cmdline(argc, argv)
21 char **argv;
22 {
23 int c;
24 extern int optind;
25 extern char *optarg;
26
27 while ((c = getopt(argc, argv, "d:")) != EOF) {
28 switch (c) {
29 case 'd':
30 device_selector = optarg;
31 continue;
32 default:
33 usage:
34 fprintf(stderr, "usage: %s [-d device-selector]\n",
35 argv[0]);
36 exit(1);
37 }
38 }
39 if (argc != optind)
40 goto usage;
41 }
18 42
19 main(argc, argv) 43 main(argc, argv)
20 char **argv; 44 char **argv;
21 { 45 {
22 struct usb_device *dev; 46 struct usb_device *dev;
23 usb_dev_handle *usbh; 47 usb_dev_handle *usbh;
24 u_char partno; 48 u_char partno;
25 int rc; 49 int rc;
26 50
27 if (argc != 2) { 51 process_cmdline(argc, argv);
28 fprintf(stderr, "usage: %s device-selector\n", argv[0]); 52 dev = find_cp2102_device(device_selector);
29 exit(1);
30 }
31 dev = find_cp2102_device(argv[1]);
32 usbh = usb_open(dev); 53 usbh = usb_open(dev);
33 if (!usbh) { 54 if (!usbh) {
34 fprintf(stderr, "error: usb_open() failed\n"); 55 fprintf(stderr, "error: usb_open() failed\n");
35 exit(1); 56 exit(1);
36 } 57 }