release/src/router/libusb/examples/testlibusb.c

   1 /*
   2  * testlibusb.c
   3  *
   4  *  Test suite program
   5  */
   6
   7 #include <stdio.h>
   8 #include <string.h>
   9 #include <usb.h>
  10
  11 int verbose = 0;
  12
  13 void print_endpoint(struct usb_endpoint_descriptor *endpoint)
  14 {
  15   printf("      bEndpointAddress: %02xh\n", endpoint->bEndpointAddress);
  16   printf("      bmAttributes:     %02xh\n", endpoint->bmAttributes);
  17   printf("      wMaxPacketSize:   %d\n", endpoint->wMaxPacketSize);
  18   printf("      bInterval:        %d\n", endpoint->bInterval);
  19   printf("      bRefresh:         %d\n", endpoint->bRefresh);
  20   printf("      bSynchAddress:    %d\n", endpoint->bSynchAddress);
  21 }
  22
  23 void print_altsetting(struct usb_interface_descriptor *interface)
  24 {
  25   int i;
  26
  27   printf("    bInterfaceNumber:   %d\n", interface->bInterfaceNumber);
  28   printf("    bAlternateSetting:  %d\n", interface->bAlternateSetting);
  29   printf("    bNumEndpoints:      %d\n", interface->bNumEndpoints);
  30   printf("    bInterfaceClass:    %d\n", interface->bInterfaceClass);
  31   printf("    bInterfaceSubClass: %d\n", interface->bInterfaceSubClass);
  32   printf("    bInterfaceProtocol: %d\n", interface->bInterfaceProtocol);
  33   printf("    iInterface:         %d\n", interface->iInterface);
  34
  35   for (i = 0; i < interface->bNumEndpoints; i++)
  36     print_endpoint(&interface->endpoint[i]);
  37 }
  38
  39 void print_interface(struct usb_interface *interface)
  40 {
  41   int i;
  42
  43   for (i = 0; i < interface->num_altsetting; i++)
  44     print_altsetting(&interface->altsetting[i]);
  45 }
  46
  47 void print_configuration(struct usb_config_descriptor *config)
  48 {
  49   int i;
  50
  51   printf("  wTotalLength:         %d\n", config->wTotalLength);
  52   printf("  bNumInterfaces:       %d\n", config->bNumInterfaces);
  53   printf("  bConfigurationValue:  %d\n", config->bConfigurationValue);
  54   printf("  iConfiguration:       %d\n", config->iConfiguration);
  55   printf("  bmAttributes:         %02xh\n", config->bmAttributes);
  56   printf("  MaxPower:             %d\n", config->MaxPower);
  57
  58   for (i = 0; i < config->bNumInterfaces; i++)
  59     print_interface(&config->interface[i]);
  60 }
  61
  62 int print_device(struct usb_device *dev, int level)
  63 {
  64   usb_dev_handle *udev;
  65   char description[256];
  66   char string[256];
  67   int ret, i;
  68
  69   udev = usb_open(dev);
  70   if (udev) {
  71     if (dev->descriptor.iManufacturer) {
  72       ret = usb_get_string_simple(udev, dev->descriptor.iManufacturer, string, sizeof(string));
  73       if (ret > 0)
  74         snprintf(description, sizeof(description), "%s - ", string);
  75       else
  76         snprintf(description, sizeof(description), "%04X - ",
  77                  dev->descriptor.idVendor);
  78     } else
  79       snprintf(description, sizeof(description), "%04X - ",
  80                dev->descriptor.idVendor);
  81
  82     if (dev->descriptor.iProduct) {
  83       ret = usb_get_string_simple(udev, dev->descriptor.iProduct, string, sizeof(string));
  84       if (ret > 0)
  85         snprintf(description + strlen(description), sizeof(description) -
  86                  strlen(description), "%s", string);
  87       else
  88         snprintf(description + strlen(description), sizeof(description) -
  89                  strlen(description), "%04X", dev->descriptor.idProduct);
  90     } else
  91       snprintf(description + strlen(description), sizeof(description) -
  92                strlen(description), "%04X", dev->descriptor.idProduct);
  93
  94   } else
  95     snprintf(description, sizeof(description), "%04X - %04X",
  96              dev->descriptor.idVendor, dev->descriptor.idProduct);
  97
  98   printf("%.*sDev #%d: %s\n", level * 2, "                    ", dev->devnum,
  99          description);
 100
 101   if (udev && verbose) {
 102     if (dev->descriptor.iSerialNumber) {
 103       ret = usb_get_string_simple(udev, dev->descriptor.iSerialNumber, string, sizeof(string));
 104       if (ret > 0)
 105         printf("%.*s  - Serial Number: %s\n", level * 2,
 106                "                    ", string);
 107     }
 108   }
 109
 110   if (udev)
 111     usb_close(udev);
 112
 113   if (verbose) {
 114     if (!dev->config) {
 115       printf("  Couldn't retrieve descriptors\n");
 116       return 0;
 117     }
 118
 119     for (i = 0; i < dev->descriptor.bNumConfigurations; i++)
 120       print_configuration(&dev->config[i]);
 121   } else {
 122     for (i = 0; i < dev->num_children; i++)
 123       print_device(dev->children[i], level + 1);
 124   }
 125
 126   return 0;
 127 }
 128
 129 int main(int argc, char *argv[])
 130 {
 131   struct usb_bus *bus;
 132
 133   if (argc > 1 && !strcmp(argv[1], "-v"))
 134     verbose = 1;
 135
 136   usb_init();
 137
 138   usb_find_busses();
 139   usb_find_devices();
 140
 141   for (bus = usb_busses; bus; bus = bus->next) {
 142     if (bus->root_dev && !verbose)
 143       print_device(bus->root_dev, 0);
 144     else {
 145       struct usb_device *dev;
 146
 147       for (dev = bus->devices; dev; dev = dev->next)
 148         print_device(dev, 0);
 149     }
 150   }
 151
 152   return 0;
 153 }
 154