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

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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>
This commit is contained in:
Alan Stern 2006-01-23 17:17:21 -05:00 committed by Greg Kroah-Hartman
parent 0c7346229c
commit 630aa3cfd5
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/uhci-q.c
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@ -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;