interval = clamp_val(ep->desc.bInterval, 1, 16) - 1;
if (interval != ep->desc.bInterval - 1)
dev_warn(&udev->dev,
- "ep %#x - rounding interval to %d microframes\n",
+ "ep %#x - rounding interval to %d %sframes\n",
ep->desc.bEndpointAddress,
- 1 << interval);
+ 1 << interval,
+ udev->speed == USB_SPEED_FULL ? "" : "micro");
+
+ if (udev->speed == USB_SPEED_FULL) {
+ /*
+ * Full speed isoc endpoints specify interval in frames,
+ * not microframes. We are using microframes everywhere,
+ * so adjust accordingly.
+ */
+ interval += 3; /* 1 frame = 2^3 uframes */
+ }
return interval;
}
ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
/* dig out max burst from ep companion desc */
max_packet = ep->ss_ep_comp.bMaxBurst;
- if (!max_packet)
- xhci_warn(xhci, "WARN no SS endpoint bMaxBurst\n");
ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
break;
case USB_SPEED_HIGH: