Message ID | 1459812014-28822-1-git-send-email-kamal@canonical.com |
---|---|
State | New |
Headers | show |
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 3a2960f..c28cb53 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4193,7 +4193,13 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, r = -EPROTO; break; } - if (r == 0) + /* + * Some devices time out if they are powered on + * when already connected. They need a second + * reset. But only on the first attempt, + * lest we get into a time out/reset loop + */ + if (r == 0 || (r == -ETIMEDOUT && j == 0)) break; } udev->descriptor.bMaxPacketSize0 =