On Sat, May 24, 2014 at 07:13:12AM -0700, Dan Williams wrote:
Good Afternoon,
> Let me see if I can achieve this with a debugfs interface so that
> 'noxhci_port_switch' does not become a permanent ABI per Greg's
> concern.
I wonder if there is another non-ABI option? Couldn't the ports
be uncond
On Tue, May 20, 2014 at 03:40:16PM -0700, Dan Williams wrote:
Dear Dan,
> Sorry, I don't think it is fair to users to force them to re-compile
> their kernel to get their device to work. Granted, I'm new to USB
> development, but the rate of reports of endpoint devices that mess up
> and require
On Mon, Feb 24, 2014 at 11:37:35AM -0800, Dan Williams wrote:
> Add a command line switch for disabling ehci port switchover. Useful
> for working around / debugging xhci incompatibilities where ehci
> operation is available.
Lovely and thank you for creating the patch. I will try to find time
to
On Tue, Jan 07, 2014 at 10:32:08AM -0500, Alan Stern wrote:
> > I think in my case quirk_usb_handoff_xhci is called during boot that
> > will switch the ports to the XHCI.
>
> That's what I said. Early PCI processing occurs during boot.
Sure, I was referring to "run only when the computer is tu
On Tue, Jan 07, 2014 at 12:19:58AM -0800, Dan Williams wrote:
> Hi Holger,
>
> Is there another thread somewhere that details the issues this device
> has with xhci?
The initial report from 2012 is here[1]. I asked again[2] in May 2013
and now in December[3]. From time to time I have issues with
On Mon, Jan 06, 2014 at 04:44:51PM -0500, Alan Stern wrote:
> Finally, blacklisting xhci-hcd won't solve the problem at hand, because
> the ports get switched from EHCI to xHCI during early PCI processing,
> before xhci-hcd is loaded. The only check is for whether
> CONFIG_USB_XHCI_HCD is enabled
From: Holger Hans Peter Freyther
xhci_hcd does not work with the Canon Lide scanners and has issues
with the suspend/resume handling. My Acer Aspire S5 notebook only
exposes USB3.0 ports and the distribution kernels generally have
xhci_hcd enabled and I don't have any USB3.0 hardware eithe
On Fri, Dec 20, 2013 at 03:41:36PM -0800, Sarah Sharp wrote:
> The first one fixes an issue where userspace tries to reset a USB
> endpoint when it's not actually halted:
>
> http://marc.info/?l=linux-usb&m=138116117104619&w=2
> Try applying them to the latest kernel and see if they fix your i
On Tue, May 28, 2013 at 07:40:57PM +0200, Holger Hans Peter Freyther wrote:
Good Evening,
> Is there a timeline when you think this could be fixed?
I tried with 3.10.x and 3.12.5 and the symptoms remain the same. The first
time it is working, the second time the scanning does not start.
On Mon, Oct 22, 2012 at 10:01:04AM -0700, Sarah Sharp wrote:
Good Evening,
> > Maybe Sarah can give you some pointers on where to look next.
>
> I've asked for a physical bus trace from one of our QA folks with the
> same scanner. I think that will shed some light on whether this is a
> host-si
On Mon, Oct 22, 2012 at 10:01:04AM -0700, Sarah Sharp wrote:
Dear Sarah,
> > Maybe Sarah can give you some pointers on where to look next.
>
> I've asked for a physical bus trace from one of our QA folks with the
> same scanner. I think that will shed some light on whether this is a
> host-side
On Mon, Oct 22, 2012 at 11:52:16AM -0400, Alan Stern wrote:
> On Sun, 21 Oct 2012, Holger Hans Peter Freyther wrote:
Dear Alan,
thanks for having a look.
> Did you connect the scanner to the computer with a USB-2 cable or a
> USB-3 cable? Not that it's supposed to matter...
I
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