From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Udo van den Heuvel <udovdh@xs4all.nl>,
Hans Verkuil <hverkuil@xs4all.nl>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans de Goede <hdegoede@redhat.com>,
USB list <linux-usb@vger.kernel.org>,
linux-media@vger.kernel.org
Subject: Re: 3.15.6 USB issue with pwc cam
Date: Thu, 14 Aug 2014 16:23:57 +0300 [thread overview]
Message-ID: <53ECB86D.6090102@linux.intel.com> (raw)
In-Reply-To: <53EA4177.7000406@xs4all.nl>
On 08/12/2014 07:31 PM, Udo van den Heuvel wrote:
> On 2014-08-12 18:27, Hans Verkuil wrote:
>> It was a bit confusing, but he has two problems: one pwc, one (the warning) for
>> uvc.
>
> Indeed.
> Do I need to provide additional info to help find the root cause(s)?
>
>
Could you help me take a look at the xhci side.
The error:
[53009.847233] xhci_hcd 0000:02:00.0: ERROR: unexpected command completion code 0x11.
Means we got a parameter error, one of the values the xhci driver sends to the controller
in the configure endpoint command is invalid.
This error is causing the "Not enough bandwidth" entries in the log as well, not
really a bandwidth error.
Can you add dynamic debugging, mount debugfs, and do:
echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control
Then plug in your usb, and send me the output.
It should print out the whole input context (all parameters) used in the configure endpoint command
-Mathias
next prev parent reply other threads:[~2014-08-14 13:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <53DCE329.4030106@xs4all.nl>
2014-08-03 19:59 ` 3.15.6 USB issue with pwc cam Nick Krause
2014-08-04 3:21 ` Nick Krause
2014-08-04 9:17 ` Laurent Pinchart
2014-08-07 14:49 ` Udo van den Heuvel
2014-08-12 15:07 ` Hans de Goede
2014-08-12 15:29 ` Udo van den Heuvel
2014-08-14 10:10 ` Hans de Goede
2014-08-12 15:38 ` Hans Verkuil
2014-08-12 16:21 ` Laurent Pinchart
2014-08-12 16:27 ` Hans Verkuil
2014-08-12 16:31 ` Udo van den Heuvel
2014-08-14 13:23 ` Mathias Nyman [this message]
2014-09-11 10:55 ` Udo van den Heuvel
2014-08-12 16:35 ` Laurent Pinchart
2014-08-12 16:46 ` Kimmo Taskinen
2014-08-12 17:23 ` Udo van den Heuvel
2014-08-08 3:42 ` 3.15.8 USB issue with uvc cam Udo van den Heuvel
2014-08-08 11:24 ` Udo van den Heuvel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53ECB86D.6090102@linux.intel.com \
--to=mathias.nyman@linux.intel.com \
--cc=hdegoede@redhat.com \
--cc=hverkuil@xs4all.nl \
--cc=laurent.pinchart@ideasonboard.com \
--cc=linux-media@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=udovdh@xs4all.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.