From: Francesco Lavra <francescolavra@interfree.it>
To: Jean-Francois Moine <moinejf@free.fr>
Cc: Linux media <linux-media@vger.kernel.org>
Subject: Re: Adding support for Benq DC E300 camera
Date: Sun, 13 Dec 2009 10:47:15 +0100 [thread overview]
Message-ID: <1260697635.23354.31.camel@localhost> (raw)
In-Reply-To: <20091213094806.239b3b9d@tele>
[-- Attachment #1: Type: text/plain, Size: 1820 bytes --]
On Sun, 2009-12-13 at 09:48 +0100, Jean-Francois Moine wrote:
> On Sat, 12 Dec 2009 20:41:24 +0100
> Francesco Lavra <francescolavra@interfree.it> wrote:
> > I'm trying to get my Benq DC E300 camera to work under Linux.
> > It has an Atmel AT76C113 chip. I don't know how many Linux users would
> > benefit from a driver supporting this camera (and possibly other
> > models, too), so my question is: if/when such a driver will be
> > written, is there someone willing to review it and finally get it
> > merged? If the answer is yes, I will try to write something working.
> >
> > This camera USB interface has 10 alternate settings, and altsetting 5
> > is used to stream data; it uses two isochronous endpoints to transfer
> > an AVI-formatted video stream (320x240) to the USB host.
> > It would be great if someone could give me some information to make
> > writing the driver easier: so far, I have only USB sniffer capture
> > logs from the Windows driver.
>
> Hi Francesco,
>
> gspca already handles some cameras and some Benq webcams. From a USB
> snoop, it may be easy to write a new gspca subdriver.
>
> I join the tcl script I use to extract the important information from
> raw snoop traces. May you send me the result with your logs? Then, I
> could see if an existing subdriver could be used or if a new one has to
> be created.
Hi Jean-Francois, thanks for your interest.
In attachment my log from a video streaming session. As you can see, it
uses altsetting 5 for streaming, while all altsettings from 0 to 9 have
the same isoc endpoints. I have already tried to write a gspca subdriver
for it, but the main gspca driver sets altsetting to 9 for streaming,
which is not appropriate for this device.
But of course I may be missing something, so your help would be very
much appreciated.
Francesco
[-- Attachment #2: dc_e300.log --]
[-- Type: text/x-log, Size: 19138 bytes --]
<GET 06 0100 0000 12 01 10 01 00 00 00 08 a5 04 35 30 00 00 00 00
< 00 01
<GET 06 0200 0000 09 02 ef 00 01 01 00 c0 32 09 04 00 00 02 0a ff
< 00 00 07 05 83 01 40 00 01 07 05 82 01 40 00 01
< 09 04 00 01 02 0a ff 00 00 07 05 83 01 40 00 01
< 07 05 82 01 40 00 01 09 04 00 02 02 0a ff 00 00
<GET 06 0200 0000 09 02 ef 00 01 01 00 c0 32 09 04 00 00 02 0a ff
< 00 00 07 05 83 01 40 00 01 07 05 82 01 40 00 01
< 09 04 00 01 02 0a ff 00 00 07 05 83 01 40 00 01
< 07 05 82 01 40 00 01 09 04 00 02 02 0a ff 00 00
< 07 05 83 01 40 00 01 07 05 82 01 40 00 01 09 04
< 00 03 02 0a ff 00 00 07 05 83 01 40 00 01 07 05
< 82 01 40 00 01 09 04 00 04 02 0a ff 00 00 07 05
< 83 01 40 00 01 07 05 82 01 40 00 01 09 04 00 05
< 02 0a ff 00 00 07 05 83 01 40 00 01 07 05 82 01
< 40 00 01 09 04 00 06 02 0a ff 00 00 07 05 83 01
< 40 00 01 07 05 82 01 40 00 01 09 04 00 07 02 0a
< ff 00 00 07 05 83 01 40 00 01 07 05 82 01 40 00
< 01 09 04 00 08 02 0a ff 00 00 07 05 83 01 40 00
< 01 07 05 82 01 40 00 01 09 04 00 09 02 0a ff 00
< 00 07 05 83 01 40 00 01 07 05 82 01 00 00 01
<GET 03 0000 0001 0c 00
<GET 03 0000 0003 3c 00
<GET 03 0000 0004 3c 00
<GET 03 0000 0005 3c 00
<GET 03 0000 0006 3c 00
<GET 03 0000 0007 3c 00
== +14112 ms
== [14200 ms]
SET 02 0003 0002
intf 00 alt 05
== +45 ms
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== +4 ms
1004 isoc
<isoc [32] l:512
<isoc [32] l:576
<isoc [32] l:0
<isoc [32] l:0
4 isoc
SET 02 003c 0003
SET 02 003c 0004
SET 02 003c 0005
SET 02 003c 0006
SET 02 003c 0007
intf 00 alt 09
== +15 ms
SET 02 0003 0002
intf 00 alt 05
== +453 ms
== [23029 ms]
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +4 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +20 ms
360 isoc
<isoc [32] l:1536
<isoc [32] l:1600
<isoc [32] l:0
<isoc [32] l:0
4 isoc
== [26691 ms]
SET 02 003c 0003
SET 02 003c 0004
SET 02 003c 0005
SET 02 003c 0006
SET 02 003c 0007
intf 00 alt 09
== +127 ms
SET 02 0003 0002
intf 00 alt 05
== +21 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
<isoc [32] l:2048
<isoc [32] l:2048
== +3 ms
== +4 ms
284 isoc
<isoc [32] l:512
<isoc [32] l:576
<isoc [32] l:0
3 isoc
<isoc [32] l:0
1 isoc
SET 02 003c 0003
SET 02 003c 0004
SET 02 003c 0005
SET 02 003c 0006
SET 02 003c 0007
intf 00 alt 09
prev parent reply other threads:[~2009-12-13 9:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-12 19:41 Adding support for Benq DC E300 camera Francesco Lavra
2009-12-13 8:48 ` Jean-Francois Moine
2009-12-13 9:47 ` Francesco Lavra [this message]
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