and assistance with
this issue.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail: matt...@giassa.net
website: www.giassa.net
> Original Mess
', etc)?
Thank you.
On Fri, 15 Apr 2016, Matthew Giassa wrote:
> Good afternoon Alan,
>
> Attached is the requested usbmon output. I started the camera, had a lot
> of config read/write calls complete,
.
With this in mind, I'm still in favor of somehow disabling LPM. At this
point, I'm already contemplating custom kernel builds for customers.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com
application wishes
to take ownership of the interface.
I realize it's not ideal to have to claim/release so rapidly, but it's
not invoking undefined behavior.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin
Replying in-line:
> > You are correct: the software claims and releases certain interfaces
> > frequently.
>
> How frequently? The usbmon log you attached to the Bugzilla report
> shows it happening at intervals of approximately 20-40 ms (sometimes
> longer) -- and often with no messages sent
id metrics.
========
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail: matt...@giassa.net
website: www.giassa.net
> Original Message
> Subject: RE: [PATCH 1/1] usb: lpm: add boot flag to di
Hi Mathias,
Applying the patch you provided did not have any impact, and the issue
persists with it in place.
Thank you.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com
ls to the "streaming" interface are very slow (maybe one
frame per minute, if it doesn't seize up entirely).
============
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail
application. I have the bus/dev pair and a
libusb_device_handle to it. This would at least allow me to patch my
software in the meantime.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com
From: Greg KH <gre...@linuxfoundation.org>
> Date: Wed, April 13, 2016 3:11 pm
> To: Matthew Giassa <matt...@giassa.net>
> Cc: Mathias Nyman <mathias.ny...@linux.intel.com>,
> linux-usb@vger.kernel.org
>
>
> On Wed, Apr 13, 2016 at 02:37:35PM -0700, Matthew Giassa wr
means
of disabling LPM, ideally on a per-device basis.
> Original Message
> Subject: Re: [PATCH 1/1] usb: lpm: add boot flag to disable lpm
> From: Greg KH <gre...@linuxfoundation.org>
> Date: Wed, April 13, 2016 2:33 pm
> To: Matthew Giassa <matt...@giassa.
in U3V machine vision cameras.
Signed-off-by: Matthew Giassa <matt...@giassa.net>
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index df0e3b9..ab6eb62 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -118,6 +118,12 @@ static inline int is_roo
.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail: matt...@giassa.net
website: www.giassa.net
> Original Message
> Subject: RE: USB xHCI regression
and the bus/dev
number of the camera in use? I'm not very familiar with the core USB
API, and would just need to know how to do the set/reset logic to
prevent runtime suspend.
Thank you all for your time and assistance.
========
Matthew Giassa,
to the camera.
Thanks.
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail: matt...@giassa.net
website: www.giassa.net
> Original Message
> Subje
time and assistance.
========
Matthew Giassa, MASc, BASc, EIT
Security and Embedded Systems Specialist
linkedin: https://ca.linkedin.com/in/giassa
e-mail: matt...@giassa.net
website: www.giassa.net
V1G"+Y
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. Is there anything further I can do, save for a physical trace, to
further diagnose this issue?
Thank you.
Matthew Giassa
Forwarded Message
Subject: Re: [libusb] Potential xHCI regression upgrading kernel
3.19.0-60
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