URB_TRANSFER_BUFFER_SIZE
room += URB_TRANSFER_BUFFER_SIZE;
urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
chars += URB_TRANSFER_BUFFER_SIZE;
urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
room += URB_TRANSFER_BUFFER_SIZE;
room = (room == 0) ? 0 : room - URB_TRANSFER_BUFFER_SIZE + 1;
urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);