On Wed, Oct 02, 2013 at 10:22:52AM -0400, Alan Stern wrote:
> On Tue, 1 Oct 2013, Sarah Sharp wrote:
>
> > > When you say a new API, what do you mean? New functions in usbcore
> > > to be used by usb device drivers?
> >
> > Yes. You would export the function
On Wed, Oct 02, 2013 at 12:16:04AM +0300, Xenia Ragiadakou wrote:
> On 10/01/2013 11:45 PM, Sarah Sharp wrote:
> >Sure. I would actually suggest you first finish up the patch to issue a
> >configure endpoint if userspace wants to clear a halt, but the endpoint
> >isn't
but the endpoint
isn't actually halted. Did your most current patch work? I can't
remember what the status was.
Sarah Sharp
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est you run perf and
see where the bottle necks in the xHCI interrupt handler are.
I suspect that part of it is that the interrupt handler reads the xHCI
status register. That PCI register read is pretty costly, and it's not
necessary since 99% of the time the host controller is going to report
On Tue, Aug 09, 2011 at 09:52:44AM +0200, Hans de Goede wrote:
> Hi,
>
> On 08/08/2011 07:58 PM, Sarah Sharp wrote:
> >On Fri, Aug 05, 2011 at 09:45:56AM +0200, Hans de Goede wrote:
> >>Hi,
> >>
> >>On 08/05/2011 12:56 AM, Greg KH wrote:
> >&
On Mon, Aug 08, 2011 at 01:23:56PM -0500, Theodore Kilgore wrote:
>
>
> On Mon, 8 Aug 2011, Sarah Sharp wrote:
>
> > On Fri, Aug 05, 2011 at 09:45:56AM +0200, Hans de Goede wrote:
> > > Hi,
> > >
> > > On 08/05/2011 12:56 AM, Greg KH wrote:
&g
u, and any of
the Intel folks who did the Moorestown USB 2.0 LPM), I think it will be
more useful to have that discussion on-list or at another conference.
Sarah Sharp
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odic transfers).
But if Alan is fine with giving users a way to shoot themselves in the
foot, and it's disabled by default, then I don't particularly mind this
patch.
Sarah Sharp
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On Fri, Jun 17, 2011 at 07:01:10PM +0200, Laurent Pinchart wrote:
> Hi Sarah,
>
> On Friday 17 June 2011 18:46:20 Sarah Sharp wrote:
> > On Fri, Jun 17, 2011 at 10:18:39AM +0200, Laurent Pinchart wrote:
> > > On Thursday 16 June 2011 22:20:22 Alan Stern wrote:
> >
On Fri, Jun 17, 2011 at 10:18:39AM +0200, Laurent Pinchart wrote:
> On Thursday 16 June 2011 22:20:22 Alan Stern wrote:
> > On Thu, 16 Jun 2011, Sarah Sharp wrote:
> > > On Thu, Jun 16, 2011 at 03:39:11PM -0400, Alan Stern wrote:
> > > > That's appropri
he individual frame status be set to -EPROTO, correct? That's what
Alex was told to do when an isochronous TD had a completion code of
"Incompatible Device Error".
Sarah Sharp
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On Thu, Jun 16, 2011 at 01:39:43PM -0400, Alan Stern wrote:
> On Thu, 16 Jun 2011, Sarah Sharp wrote:
>
> > > > > Alan, does that seem correct?
> > >
> > > The description of the behavior of ehci-hcd and uhci-hcd is correct.
> > > ohci-hcd behave
On Thu, Jun 16, 2011 at 10:35:49AM -0400, Alan Stern wrote:
> On Thu, 16 Jun 2011, Laurent Pinchart wrote:
> > On Thursday 16 June 2011 04:59:57 Sarah Sharp wrote:
> > > On Wed, Jun 15, 2011 at 06:39:57PM -0700, Sarah Sharp wrote:
> > > > I've grepped through dri
On Wed, Jun 15, 2011 at 06:39:57PM -0700, Sarah Sharp wrote:
> When I plug in a webcam under an xHCI host controller in 3.0-rc3+
> (basically top of Greg's usb-linus branch) with xHCI debugging turned
> on, the host controller occasionally cannot keep up with the isochronous
>
tus and frame status to when the xHCI host
controller skips over transfers? -EREMOTEIO?
Or does it need to set the URB's status to zero, but only set the
individual frame status to -EXDEV?
Sarah Sharp
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On Thu, Jun 09, 2011 at 08:18:05PM -0700, Greg KH wrote:
> On Thu, Jun 09, 2011 at 05:21:03PM -0700, Sarah Sharp wrote:
> > Topic 1
> > ---
> >
> > The KVM folks suggested that it would be good to get USB and
> > virtualization developers together to talk abo
interval in frames, not microframes. There
needs to be some way for the drivers to communicate their bandwidth
needs to the USB core. We've known about this issue for a while, and I
think it's time to get everyone in the same room and hash out an API.
(I will send out an API proposal late
On Mon, May 10, 2010 at 07:39:37PM +0200, Jean-Francois Moine wrote:
> On Mon, 10 May 2010 13:25:00 -0300
> Mauro Carvalho Chehab wrote:
>
> > Sarah Sharp wrote:
> > > On Sat, May 08, 2010 at 03:45:41PM -0700, Mauro Carvalho Chehab
> > > wrote:
> > >>
ers to request a specific polling rate and frame list length for an
endpoint. However, I expect that the call would have to be either
before or part of the call to usb_set_interface(), because of how the
xHCI hardware tracks endpoints. So even if we had the ideal interface,
the drivers would still need cod
interface setting.
Signed-off-by: Sarah Sharp
Tested-by: Andiry Xu
---
drivers/media/video/gspca/gspca.c | 10 ++
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/media/video/gspca/gspca.c
b/drivers/media/video/gspca/gspca.c
index 222af47..6de3117 100644
--- a
looks a bit hackish; can with experience with that driver look it
over? Can anyone tell me where to look for the usb_set_interface() in
uvcvideo?
Sarah Sharp
8<--
>From 0e6bc81b178364ee9771c64a06ab006588c73ae6 Mon Sep 17 00:00:00 2001
From: Sarah Sharp
Date: Mon,
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