From: Larry Finger <Larry.Finger@lwfinger.net>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-usb@vger.kernel.org
Subject: Re: Regression in kernel 3.8-rc1 bisected to commit adfa79d: I now get many "unable to enumerate USB device" messages
Date: Wed, 26 Dec 2012 13:12:39 -0600 [thread overview]
Message-ID: <50DB4C27.8040007@lwfinger.net> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1212261139060.15906-100000@netrider.rowland.org>
On 12/26/2012 10:45 AM, Alan Stern wrote:
>
> I see. Do you happen to have CONFIG_USB_EHCI_HCD=y and
> CONFIG_USB_EHCI_PCI=m in your .config? If you do, try changing
> EHCI_PCI to y.
One additional data point: When the EHCI and HCD parameters are set to y rather
than m as in the list that follows, the enumerate messages do not occur.
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
Larry
next prev parent reply other threads:[~2012-12-26 19:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-25 3:16 Larry Finger
2012-12-25 16:26 ` Alan Stern
2012-12-25 18:06 ` Larry Finger
2012-12-26 16:45 ` Alan Stern
2012-12-26 17:44 ` Larry Finger
2012-12-26 19:12 ` Larry Finger [this message]
2012-12-27 3:56 ` Alan Stern
2012-12-27 15:46 ` Larry Finger
2012-12-27 23:18 ` Alan Stern
2012-12-27 23:40 ` Larry Finger
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