usb-host: enable pipelineing for bulk endpoints.

We really don't want to wait for packets finish before submitting the
next, we want keep the data flow running.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

usb-linux.c

diff --git a/usb-linux.c b/usb-linux.c
index 050ea7a..90919c2 100644
--- a/usb-linux.c
+++ b/usb-linux.c
@@ -1192,6 +1192,9 @@
                    USB_ENDPOINT_XFER_INVALID);
             usb_ep_set_type(&s->dev, pid, ep, type);
             usb_ep_set_ifnum(&s->dev, pid, ep, interface);
+            if (type == USB_ENDPOINT_XFER_BULK) {
+                usb_ep_set_pipeline(&s->dev, pid, ep, true);
+            }
 
             epd = get_endp(s, pid, ep);
             epd->halted = 0;