/* * testlibusb.c * *  Test suite program */#include <stdio.h>#include <string.h>#include <usb.h>int verbose = 0;void print_endpoint(struct usb_endpoint_descriptor *endpoint){  printf("      bEndpointAddress: %02xh\n", endpoint->bEndpointAddress);  printf("      bmAttributes:     %02xh\n", endpoint->bmAttributes);  printf("      wMaxPacketSize:   %d\n", endpoint->wMaxPacketSize);  printf("      bInterval:        %d\n", endpoint->bInterval);  printf("      bRefresh:         %d\n", endpoint->bRefresh);  printf("      bSynchAddress:    %d\n", endpoint->bSynchAddress);}void print_altsetting(struct usb_interface_descriptor *interface){  int i;  printf("    bInterfaceNumber:   %d\n", interface->bInterfaceNumber);  printf("    bAlternateSetting:  %d\n", interface->bAlternateSetting);  printf("    bNumEndpoints:      %d\n", interface->bNumEndpoints);  printf("    bInterfaceClass:    %d\n", interface->bInterfaceClass);  printf("    bInterfaceSubClass: %d\n", interface->bInterfaceSubClass);  printf("    bInterfaceProtocol: %d\n", interface->bInterfaceProtocol);  printf("    iInterface:         %d\n", interface->iInterface);  for (i = 0; i < interface->bNumEndpoints; i++)    print_endpoint(&interface->endpoint[i]);}void print_interface(struct usb_interface *interface){  int i;  for (i = 0; i < interface->num_altsetting; i++)    print_altsetting(&interface->altsetting[i]);}void print_configuration(struct usb_config_descriptor *config){  int i;  printf("  wTotalLength:         %d\n", config->wTotalLength);  printf("  bNumInterfaces:       %d\n", config->bNumInterfaces);  printf("  bConfigurationValue:  %d\n", config->bConfigurationValue);  printf("  iConfiguration:       %d\n", config->iConfiguration);  printf("  bmAttributes:         %02xh\n", config->bmAttributes);  printf("  MaxPower:             %d\n", config->MaxPower);  for (i = 0; i < config->bNumInterfaces; i++)    print_interface(&config->interface[i]);}int print_device(struct usb_device *dev, int level){  usb_dev_handle *udev;  char description[256];  char string[256];  int ret, i;  udev = usb_open(dev);  if (udev) {    if (dev->descriptor.iManufacturer) {      ret = usb_get_string_simple(udev, dev->descriptor.iManufacturer, string,                                  sizeof(string));      if (ret > 0)        snprintf(description, sizeof(description), "%s - ", string);      else        snprintf(description, sizeof(description), "%04X - ",                 dev->descriptor.idVendor);    } else      snprintf(description, sizeof(description), "%04X - ",               dev->descriptor.idVendor);    if (dev->descriptor.iProduct) {      ret = usb_get_string_simple(udev, dev->descriptor.iProduct, string,                                   sizeof(string));      if (ret > 0)        snprintf(description + strlen(description), sizeof(description) -                 strlen(description), "%s", string);      else        snprintf(description + strlen(description), sizeof(description) -                 strlen(description), "%04X", dev->descriptor.idProduct);    } else      snprintf(description + strlen(description), sizeof(description) -               strlen(description), "%04X", dev->descriptor.idProduct);  } else    snprintf(description, sizeof(description), "%04X - %04X",             dev->descriptor.idVendor, dev->descriptor.idProduct);  printf("%.*sDev #%d: %s\n", level * 2, "                    ", dev->devnum,         description);  if (udev && verbose) {    if (dev->descriptor.iSerialNumber) {      ret = usb_get_string_simple(udev, dev->descriptor.iSerialNumber, string,                                  sizeof(string));      if (ret > 0)        printf("%.*s  - Serial Number: %s\n", level * 2,               "                    ", string);    }  }  if (udev)    usb_close(udev);  if (verbose) {    if (!dev->config) {      printf("  Couldn't retrieve descriptors\n");      return 0;    }    for (i = 0; i < dev->descriptor.bNumConfigurations; i++)      print_configuration(&dev->config[i]);  } else {    for (i = 0; i < dev->num_children; i++)      print_device(dev->children[i], level + 1);  }  return 0;}int main(int argc, char *argv[]){  struct usb_bus *bus;  if (argc > 1 && !strcmp(argv[1], "-v"))    verbose = 1;  usb_init();  usb_set_debug(0);  usb_find_busses();  usb_find_devices();  for (bus = usb_get_busses(); bus; bus = bus->next) {    if (bus->root_dev && !verbose)      print_device(bus->root_dev, 0);    else {      struct usb_device *dev;      for (dev = bus->devices; dev; dev = dev->next)        print_device(dev, 0);    }  }  return 0;}