/* ep0 */
                dev_vdbg(&dev->pdev->dev, "%s-%s\n", ep->name, DIR_STRING(ep));
 
-       dev_vdbg(&dev->pdev->dev, "ep_dqh[%d] addr: 0x%08x\n",
-                       i, (u32)&(dev->ep_dqh[i]));
+       dev_vdbg(&dev->pdev->dev, "ep_dqh[%d] addr: 0x%p\n",
+                       i, &(dev->ep_dqh[i]));
 
        bit_mask = is_in(ep) ?
                (1 << (ep->ep_num + 16)) : (1 << (ep->ep_num));
 
        /* allocate device dQH memory */
        size = dev->ep_max * sizeof(struct langwell_dqh);
-       dev_vdbg(&dev->pdev->dev, "orig size = %d\n", size);
+       dev_vdbg(&dev->pdev->dev, "orig size = %zd\n", size);
        if (size < DQH_ALIGNMENT)
                size = DQH_ALIGNMENT;
        else if ((size % DQH_ALIGNMENT) != 0) {
                goto error;
        }
        dev->ep_dqh_size = size;
-       dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %d\n", dev->ep_dqh_size);
+       dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %zd\n", dev->ep_dqh_size);
 
        /* initialize ep0 status request structure */
        dev->status_req = kzalloc(sizeof(struct langwell_request), GFP_KERNEL);
 
        /* allocate device dQH memory */
        size = dev->ep_max * sizeof(struct langwell_dqh);
-       dev_vdbg(&dev->pdev->dev, "orig size = %d\n", size);
+       dev_vdbg(&dev->pdev->dev, "orig size = %zd\n", size);
        if (size < DQH_ALIGNMENT)
                size = DQH_ALIGNMENT;
        else if ((size % DQH_ALIGNMENT) != 0) {
                return -ENOMEM;
        }
        dev->ep_dqh_size = size;
-       dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %d\n", dev->ep_dqh_size);
+       dev_vdbg(&dev->pdev->dev, "ep_dqh_size = %zd\n", dev->ep_dqh_size);
 
        /* create dTD dma_pool resource */
        dev->dtd_pool = dma_pool_create("langwell_dtd",