+ xpcu_init();
+
+ usbdev = getenv("XILINX_USB_DEV");
+ if (usbdev != NULL) {
+ int j;
+ char *devstr = NULL, *remainder;
+ char *devpos;
+
+ devpos = strdup(usbdev);
+ if (!devpos)
+ return -ENOMEM;
+
+ DPRINTF("XILINX_USB_DEV=%s\n", devpos);
+
+ for (j = 0; j < strlen(devpos) && devpos[j] != 0; j++) {
+ if (devpos[j] == ':') {
+ devpos[j] = 0;
+ devstr = &(devpos[j+1]);
+ }
+ }
+
+ if (devstr && strlen(devstr) > 0) {
+ busnum = strtol(devpos, &remainder, 10);
+ if (devpos == remainder) {
+ busnum = -1;
+ } else {
+ devnum = strtol(devstr, &remainder, 10);
+ if (devstr == remainder) {
+ busnum = -1;
+ devnum = -1;
+ } else {
+ fprintf(stderr,"Using XILINX platform cable USB at %03d:%03d\n",
+ busnum, devnum);
+ }
+ }
+ }
+ free(devpos);
+ }
+
+ xpcu_event = malloc(sizeof(struct xpcu_event_s));
+ if (!xpcu_event)
+ return -ENOMEM;
+
+ bzero(xpcu_event, sizeof(struct xpcu_event_s));
+ xpcu_event->xpcu = NULL;
+ xpcu_event->count = 0;
+ xpcu_event->interrupt_count = 0;
+ pthread_mutex_init(&xpcu_event->interrupt, NULL);
+
+ for (i = 0; i < e->dwNumMatchTables; i++) {
+
+ DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
+ e->matchTables[i].VendorId,
+ e->matchTables[i].ProductId,
+ e->matchTables[i].bDeviceClass,
+ e->matchTables[i].bDeviceSubClass,
+ e->matchTables[i].bInterfaceClass,
+ e->matchTables[i].bInterfaceSubClass,
+ e->matchTables[i].bInterfaceProtocol);
+
+ for (bus = busses; bus; bus = bus->next) {
+ struct usb_device *dev;
+
+ if ((devnum != -1) && (strtol(bus->dirname, NULL, 10) != busnum))
+ continue;
+
+ for (dev = bus->devices; dev; dev = dev->next) {
+ struct usb_device_descriptor *desc = &(dev->descriptor);
+
+ if((desc->idVendor == e->matchTables[i].VendorId) &&
+ (desc->idProduct == e->matchTables[i].ProductId) &&
+ (desc->bDeviceClass == e->matchTables[i].bDeviceClass) &&
+ (desc->bDeviceSubClass == e->matchTables[i].bDeviceSubClass) &&
+ ((devnum == -1) || (strtol(dev->filename, NULL, 10) == devnum)) ) {
+ int ac;
+ for (ac = 0; ac < desc->bNumConfigurations; ac++) {
+ struct usb_interface *interface = dev->config[ac].interface;
+ int ai;
+
+ for (ai = 0; ai < interface->num_altsetting; ai++) {
+
+ DPRINTF("intclass: %x, intsubclass: %x, intproto: %x\n",
+ interface->altsetting[i].bInterfaceClass,
+ interface->altsetting[i].bInterfaceSubClass,
+ interface->altsetting[i].bInterfaceProtocol);
+
+ if ((interface->altsetting[ai].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
+ (interface->altsetting[ai].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
+ int n = xpcu_event->count;
+
+ /* TODO: check interfaceClass! */
+ DPRINTF("found device with libusb\n");
+
+ xpcu = realloc(xpcu, sizeof(struct xpcu_s) * (++xpcu_event->count));
+ if (!xpcu) {
+ free(xpcu_event);
+ return -ENOMEM;
+ }
+
+ bzero(&(xpcu[n]), sizeof(struct xpcu_s));
+ xpcu[n].interface = -1;
+ xpcu[n].alternate = -1;
+ xpcu[n].dev = dev;
+ xpcu[n].card_type = e->dwCardType;
+
+ xpcu_event->xpcu = xpcu;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ e->handle = (unsigned long)xpcu_event;
+
+ return 0;