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Date:      Fri, 17 May 2013 18:15:40 +0200
From:      =?ISO-8859-2?Q?Jo=BEe_Zobec?= <jozze.zepl@gmail.com>
To:        Adrian Chadd <adrian@freebsd.org>, freebsd-usb@freebsd.org
Subject:   Re: revision higher than 250508 breaks webcam support
Message-ID:  <CAHy-F6SUNPdii82jt2Dmw-dgOqDP9tFMHmdpADfDO8qdU9s9oA@mail.gmail.com>
In-Reply-To: <CAJ-VmokNx1UFc3j2TH=2we24hVNFLt98sNjRwKtKJuK_R38TUw@mail.gmail.com>
References:  <mailman.53.1368705602.5105.freebsd-stable@freebsd.org> <DUB121-W37A8B49900048A70D6265D82AC0@phx.gbl> <CAJ-Vmok1D1vNFpNuHsK=m-AMzOL%2BXQgmn9zfOmt13WynGDHVGA@mail.gmail.com> <20130517040331.GA73930@icarus.home.lan> <CAHy-F6TPh=FekomtgzWVDRpFn0pNQtPxtr743%2BXE_Fpo2LcFcw@mail.gmail.com> <CAHy-F6RYChqVHXwDfTOTQeoWBQdtG0iVBj386FD2prArna7wBw@mail.gmail.com> <CAJ-VmokNx1UFc3j2TH=2we24hVNFLt98sNjRwKtKJuK_R38TUw@mail.gmail.com>

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Thank you for the help! I really find this community warm and friendly.

I filed the PR. There is another symptom, which I forgot to mention
earlier. My camera's microphone is usually added to /dev as

/dev/dsp6.0

but in this case, it isn't because it's reconnecting in an infinite loop
(it tries to connect, gives error, disconnects and so on).


2013/5/17 Adrian Chadd <adrian@freebsd.org>

> 'ola!
>
> Cool, you've nailed it down to a specific revision.
>
> Can you create a PR (www.freebsd.org/send-pr.html) with all of this
> information?
>
> Hans/USB folk - here's an interesting problem. The original email is belo=
w.
>
> =3D=3D=3D
>
> Sorry, for waiting this long to post this problem, I thought it would
> be dealt with this week, but since it wasn't better to report it now.
> I hope this is the right mailing list for this particular problem.
>
> I am running FreeBSD 9.1-STABLE and using Logitech Webcam C525. I it's
> not listed amongst the supported hardware, but it was working
> perfectly until the updates that came this Sunday, 2013-05-12.
>
> The problem I'm getting is this:
>
> I keep getting this error message from the kernel, if I'm using
> 9.1-STABLE r250707
>
> ...
> pcm6: detached
> ugen7.2: <vendor 0x046d> at asbus7
> uaudio0: <vendor 0x046d HD Webcam C525, class 239/2, rev 2.00/0.10,
> addr 2> on usbus7
> uaudio0: No playback.
> uaudio0: Record: 48000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
> uaudio0: Record: 32000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
> uaudio0: Record: 24000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
> uaudio0: Record: 16000 Hz, 1 ch, 16-bit S-LE PCM format, 2x8ms buffer.
> uaudio: No MIDI squencer.
> pcm6: <USB audio> on uaudio0
> uaudio0: No HID volume keys found.
> ugen7.2: <vendor 0x046d> at usbus7 (disconnected)
> uaudio0: at uhub7, port4, addr 2 (disconnected)
> pcm6: detached
> ...
>
> This message is displayed periodically "ad infinitum" or at least
> until I unplug the webcam. It stays this way, even if I use the
> GENERIC kernel. In a "healthy" case, revision 250508, kernel message
> upon plugging the webcam, is
>
> ...
> ugen7.2: <vendor 0x046d> at usbus7
> uaudio0: <vendor 0x046d HD Webcam C525, class 239/2, rev 2.00/1.00,
> addr2> on usbus7
> uaudio: No playback.
> uaudio: Record: 48000 Hz, 1 ch, 16 bit S-LE PCM format, 2x8ms buffer.
> uaudio: No MIDI sequencer.
> pcm6: <USB audio> on uaudio0
> uaudio0: No HID volume keys found.
>
> And there it stops, and the webcam works in Skype.
>
> =3D=3D=3D
>
>
> adrian
>
> On 17 May 2013 04:14, Jo=BEe Zobec <jozze.zepl@gmail.com> wrote:
> > OK, I compiled and tried different revisions
> > r250559 -- OK
> > r250560 -- OK
> > r250561 -- error
> >
> > Upon updating from r250560 to r250561, svn give me
> >
> > ...
> > U       /usr/src/sys/dev/sound/usb/uaudio.c
> >  U      /usr/src/sys/dev
> >  U      /usr/src/sys
> > ...
> >
> > I tried
> >
> > # svn diff -r 250560:250561 /usr/src | less
> >
> > to see if I could localize the problem even further, but there are a lo=
t
> of
> > changes so I don't know where it could go wrong, since I'm not the one
> who
> > wrote it.
> >
> > I am looking forward to your fast reply,
> >
> > Jo=BEe
>



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