}
if (ep & USB_DIR_IN) {
+ bool q_was_empty;
+
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) {
DPRINTF("received int packet while not started ep %02X\n", ep);
free(data);
return;
}
- if (QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq)) {
- usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f), 0);
- }
+ q_was_empty = QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq);
/* bufp_alloc also adds the packet to the ep queue */
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep, data);
+
+ if (q_was_empty) {
+ usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f), 0);
+ }
} else {
/*
* We report output interrupt packets as completed directly upon