[PATCH] USB: UHCI: No FSBR until device is configured

Some USB devices don't enumerate well with FSBR turned on.  This patch
keeps devices on the low-speed part of the schedule (which doesn't use
FSBR) until they have been fully configured.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index b607600..7823980 100644 (file)
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -672,9 +672,9 @@ static int uhci_submit_control(struct uhci_hcd *uhci, struct urb *urb, struct ur
        /* Low-speed transfers get a different queue, and won't hog the bus.
         * Also, some devices enumerate better without FSBR; the easiest way
         * to do that is to put URBs on the low-speed queue while the device
-        * is in the DEFAULT state. */
+        * isn't in the CONFIGURED state. */
        if (urb->dev->speed == USB_SPEED_LOW ||
-                       urb->dev->state == USB_STATE_DEFAULT)
+                       urb->dev->state != USB_STATE_CONFIGURED)
                skelqh = uhci->skel_ls_control_qh;
        else {
                skelqh = uhci->skel_fs_control_qh;