ver_info = UVC_QUIRK_PROBE_MINMAX },
>
> I'm not sure if he has already reported this or not.
Please check if the webcam works without this patch. I got a report a week ago
saying that the unpatched SVN version of the Linux UVC driver work
processing), I suggest to choose a target
audience before starting the implementation. Needs will vary between image
processing developers and video display developers.
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Laurent Pinchart
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s/3055&cl=us,en)
are supposed to be fixed, but I still haven't been able to test yet.
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n't done/stable yet. It still needs development.
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t
indicate a problem during descriptor parsing. Could you send me the output of
lsusb -v for your device ? Make sure to use usbutils 0.72 or newer, otherwise
lsusb won't print anything useful.
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On Sunday 19 August 2007, Mickael Drean wrote:
> 2007/8/19, Laurent Pinchart <[EMAIL PROTECTED]>:
> > Hi Mickaël,
> >
> > On Sunday 19 August 2007, Mickael Drean wrote:
> > > Well,
> > >
> > > I can do nothing with luvcview... it is a complete
//answers.launchpad.net/ubuntu/+question/12072
Sorry again for the mistake.
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out issues.
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aise the driver trace level to get more information in
the kernel log.
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might need the latest SVN build of Kopete.
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for others. It's a
decent webcam, except that there's no way to know in advance if it will work
with a given computer.
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> didn't react.
> What do you need to solve the problem?
The kernel log after resume. Did you suspend to ram or to disk ? Can you try
both ?
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https:
en responsible for creating device nodes.
You should first check if the driver has properly detected the webcam. Check
the kernel log (using the dmesg command) for information printed by the UVC
driver.
Best regards,
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On Sunday 26 August 2007, Felix Möller wrote:
> Laurent Pinchart schrieb:
> > Hello everybody.
> >
> > I received no answers to my recent call for testers for the
> > suspend/resume patch. This either means nobody tried it, or it worked
> > flawlessly for everybody
much more complex. You'll have to
come up with a userspace image processing algorithm to compute focus values
from the video. I have no experience with that.
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On Tuesday 28 August 2007 11:32, Dr. techn. Alexander K. Seewald wrote:
> On Tue, Aug 28, 2007 at 01:14:51AM +0200, Laurent Pinchart wrote:
> > There are two things to implement in Linux to get something similar. The
> > first one is to implement manual focus into the driver. Th
default format and/or frame are not
> valid. uvcvideo: <3>uvcvideo: Failed to initialize the device (-22).
> usb 3-1.3: USB disconnect, address 5
> usb 3-1.4: new full speed USB device using uhci_hcd and address 6
> usb 3-1.4: not running at top speed; connect to a high speed
e list of supported devices.
>
> Unfortunately I cannot use the webcam in Ekiga (2.0.9), although it
> lists it correctly in the Video Devices configuration section. Maybe
> somebody encountered the same problem?
>
> Anyway, thanks for your great work on this pro
gt; bTriggerSupport 1
> bTriggerUsage 0
> bControlSize1
>
>
> Signed-off-by: Brandon Philips <[EMAIL PROTECTED]>
Acked-by: Laurent Pinchar
ught the driver/webcam supports only MJPEG and YUYV.
All the UVC webcams I know about support MJPEG and YUYV only. Wengophone might
have a low-level MJPEG/YUV to RGB565 filter somewhere that makes the
application think the webcam streams RGB565 data. In any case, you shouldn't
worry about
AF is implemented in software in the Windows driver,
and that's out of scope for the Linux driver. Experimenting with a software
AF algorithm in userspace would be a nice project if one of you has some
image processing background :-)
Best regards,
Lauren
ly
implements pan/tilt using private controls, and you thus need applications
written specifically for the driver you are using.
For the Linux UVC driver, luvcview should be able to control pan and tilt.
Best regards,
Laurent Pinchart
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Hi everybody,
I'll take a short break from the internet for a week. I should hopefully come
back on Tuesday 11th with batteries fully charged to answer all your e-mails
(and probably with a nice suntan as well but you won't be able to see that).
See you all in a week.
Lauren
on level) or in the camera itself
(it might have a control to rotate the image). The output of lsusb -v might
help me to see if an image rotation control is available.
> Thanx for your work and your help
You're welcome.
Best regards,
Laurent Pinchart
__
his capability...
How do you mean ? The latest Linux UVC driver supports controlling the focus
manually.
> 2) This explains why the camera makes almost no noise during focus change
> and why it returns to infinite focus after losing power.
Best regard
e intimate could see if this can be added in a
> nice way. But I think increasing the timeouts shouldn't hurt (you could
> still add a dummy GET_CUR after the set_interface with an increased
> timeout, if you don't want to change the timeout globally), and i
> believe the set_in
Hi,
On Monday 10 September 2007, Sunatomo Masuda wrote:
> Hello
> I've tested and check the woring of uvcvideo.ko module
> Would you put this device to your supported devives list?
Thanks for the report. The device 0c45:62c0 is already in the supported
devices list.
Best reg
ory
relationship between the index and selector. To access an extension unit
control, you will need to get the control selector from the vendor.
Hope this helps.
Best regards,
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Hi Guillaume,
your post was too big for the list so I removed to
On Wednesday 05 September 2007, Guillaume Desmottes wrote:
> Le mercredi 25 avril 2007 à 00:05 +0200, Guillaume Desmottes a écrit :
> > Le mardi 24 avril 2007 à 20:37 +0200, Laurent Pinchart a écrit :
> > > You
Hi Felix,
On Wednesday 12 September 2007, Felix Domke wrote:
> Laurent Pinchart wrote:
> >> i've spent some time on the Microsoft Xbox Live Vision cam (it's pretty
> >> cheap, USB 2.0, nearly uvc 1.0 compliant, has a pretty good image
> >> quality, manu
Hi Guillaume,
On Thursday 13 September 2007, Guillaume Desmottes wrote:
> Le mercredi 12 septembre 2007 à 23:48 +0200, Laurent Pinchart a écrit :
> > Hi Guillaume,
> >
> > your post was too big for the list so I removed to
> >
> > On Wednesday 05 Septembe
ck out the sources from SVN and compile them).
For testing purpose, you can use luvcview.
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hould work if you use the latest version (you might
have to check them out from SVN). Other applications might work too.
If you have trouble with step 2, I'm afraid there's not much I can do :-)
Best regards,
Laurent Pinchart
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On Thursday 13 September 2007, Dr. techn. Alexander K. Seewald wrote:
> On Wed, Sep 12, 2007 at 10:59:39PM +0200, Laurent Pinchart wrote:
> > > 1) It should be possible to drive the focus system quite fast. Not
> > > sure why the current driver does not seem to ut
rface() call
fixes the problem.
Best regards,
Laurent Pinchart
Index: uvc_video.c
===
--- uvc_video.c (revision 122)
+++ uvc_video.c (working copy)
@@ -883,6 +883,13 @@
return -EINVAL;
}
+ /* Alternate setting 0 should be the de
recent SVN snapshot. You might be able to find more information on the
Kopete/KDE development website. Please note that proper V4L2 support in
Kopete is quite experimental, and it might or might not work for you.
Best regards,
Laurent Pinchart
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roblem then. Most webcams (at least the ones listed on the
website) use a CMOS sensor. You won't get sharp pictures under low light
condition. Depending on your needs, you might want to go for a CCD sensor
instead. Those will be found in more
dow manager is available
> video /dev/video0
> Unable to set format: 22.
> Init v4L2 failed !! exit fatal
luvcview defaults to MJPEG. Your camera supports YUV only. Try
luvcview -f yuv
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ter starting Ekiga ?
> Thanks for bringing the driver to the community,
My pleasure :-)
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y I know of to synchronise two (or more) cameras. UVC
doesn't provide a mean to start streaming at a given time. Even if it did,
differences in clock frequency between the two webcams would result in a slow
drift.
Best regards,
Laurent Pinchart
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nks. I applied the patch. I'll now look into the timeout issue.
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, and load it manually after plugging the webcam.
This is not a pretty workaround as it requires manual operations every time
you plug the camera, but it should work.
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On Sunday 23 September 2007, Juan Luis Baptiste wrote:
> On Thursday 20 September 2007 14:52:02 Laurent Pinchart wrote:
> > Sonix webcams work, as do the latest Logitech ones (Quickcam Pro 9000 and
> > Quickcam Pro for Notebook 2007 (PID 0990 and 0991).
>
> Include Quickc
On Monday 24 September 2007, Juan Luis Baptiste wrote:
> On Sunday 23 September 2007 04:35:40 Laurent Pinchart wrote:
> > > Include Quickcam fusion to the list !!
> >
> > No, that one has the hardware bug.
>
> Well, I have been using it for a couple of weeks witho
st users" and "some issues" is difficult to
define. I added a "Status" column to the supported devices list. The device
is either supported (green check mark) or supported with some issues the user
should be aware of (warning sign with footnote links).
Please let me
nd
> get another model?
Your webcam doesn't follow the UVC standard, so it isn't (and won't be)
supported by the Linux UVC driver.
Have a look at the SPCA5xx driver. Looking at
http://mxhaard.free.fr/spca5xx.html it should support your webcam.
Best regards,
Laure
Hi Alexandre,
On Tuesday 25 September 2007, Alexandre DENIS wrote:
> On Saturday 22 September 2007, Laurent Pinchart wrote:
> > Kernel 2.6.22 includes bug fixes in the usbaudio driver that can
> > trigger another firmware bug in the webcam. Fortunately this one
> > seems
On Tuesday 25 September 2007, Alexandre DENIS wrote:
> On Saturday 22 September 2007, Laurent Pinchart wrote:
> > Kernel 2.6.22 includes bug fixes in the usbaudio driver that can
> > trigger another firmware bug in the webcam. Fortunately this one
> > seems to have a worka
lease post the output of
lsusb -v -d 0474:0238
using usbutils 0.72 or newer ? I'll then see if there's anything I can do.
> Thanks for this driver developement!
You're welcome.
Best regards,
Laurent Pinchart
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on, or does it have a capture loop inside ?
If the application doesn't exit between captures, make sure it properly unmaps
the buffers with munmap() before you call VIDIOC_REQBUFS.
If the application exits between captures, make it has really fini
Hi Jörg,
On Tuesday 25 September 2007, Jörg Hermsdorf wrote:
> Hi all,
>
> does the uvcvideo module export some controls that can be set via the sysfs
> filesystem? I'm looking for a way to toggle the status LED on and off. Or
> is this directly controlled my the hardware?
>
> My cam is the Logite
Hi Carles,
On Tuesday 25 September 2007, Carles Pina i Estany wrote:
> Hi Laurent,
>
> On Sep/22/2007, Laurent Pinchart wrote:
>
> sorry to take some days to answer, I have been out of usual computing
> for some days :-)
>
> > On Friday 21 September 2007, Carles Pina
email about ffmpeg aborting due to incomplete v4l2 frames) and
> Wengophone is not fault-tolerant enough to catch this.
Good point. I'll see what I can do.
Regards,
Laurent Pinchart
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t
those erroneous/incomplete frames is to look at the frame size. This can be
done for uncompressed formats, but will obviously be useless for compressed
format.
The driver currently handles complete and incomplete frames the same way. I
can add a driver option to make it drop incomplete frames,
Hi Martin,
On Friday 28 September 2007, Martin Rubli wrote:
> Jörg, Laurent,
>
> On Thu, 27 Sep 2007 04:45:20 +0800, Laurent Pinchart
>
> <[EMAIL PROTECTED]> wrote:
> >> does the uvcvideo module export some controls that can be set via the
> >> sysfs file
majotity of the recent webcams are based on
> isochronous transfer. If the UVC driver supports bulk transfer, is there
> any webcam I can use with it using bulk transfer?
The only cameras I know of that support bulk transfers are the Fujifilm
FinePix, Pico iMage and Bodelin Proscope HR.
Bes
On Wednesday 26 September 2007, Carles Pina i Estany wrote:
> Hello again,
>
> On Sep/26/2007, Laurent Pinchart wrote:
> > > > > I have a Logitech Quickcam Pro for Notebooks, that seems that is
> > > > > well supported.
> > > > >
> > &
nly so it
won't work. I think aMsn supports V4L2. Ekiga does.
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Hi Martin,
On Friday 28 September 2007, Martin Rubli wrote:
> On Tue, 25 Sep 2007 04:26:28 +0800, Laurent Pinchart
>
> <[EMAIL PROTECTED]> wrote:
> > Hi Tom,
> >
> > On Monday 24 September 2007, Tom St wrote:
> >> Hello Listmembers, Hello Laurent,
> &g
nd of firmware bug
not triggered by Windows. The Windows driver might send an optional command
to the webcam when stopping the stream, and failing to send that command
might trigger a bug.
Would you be able to get a USB trace when the webcam is plugged in a Windows
box ?
Best regards,
Lauren
ength parameter. What are their values ?
>
> webcam: exit
> -> uvc_vm_close() ... vma_use_count = 1->0
>
> My system is:
> CPU ARM9
> Kernel 2.6.22
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Hi Guillaume,
On Sunday 30 September 2007, Guillaume Desmottes wrote:
> Le samedi 22 septembre 2007 à 00:29 +0200, Laurent Pinchart a écrit :
> > The webcam audio interface must be initialised before the video
> > interface. Linux will by default initialise the video interface fi
On Wednesday 03 October 2007, Carles Pina i Estany wrote:
> Hi! (specially to Laurent)
>
> Sorry to not answer my last email, I don't have it here :-)
>
> On Sep/30/2007, Guillaume Desmottes wrote:
> > Le samedi 22 septembre 2007 à 00:29 +0200, Laurent Pinchart a écri
struct uvc_control *ctrl;
> __u32 i;
>
> webcam re-works.
> Best regards,
Thanks a lot for the patch (and the oops report in your previous mail).
There were a few more identical uninitialised pointers issues so I committed a
slightly different fix. Could you please test the
name:Backlight Compensation type:1 min:0
> max:1step:1 def:0 now:0
> index:134217729 name:Power Line Frequency type:3 min:0
> max:2step:1 def:1 now:1
> Menu items:
> index:0 name:Disabled
> index:1 name:50 Hz
> index
obably won't be before this weekend.
Best regards,
Laurent Pinchart
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so now everything matches :-)
>
> What do you use to have videocalls with uvcvideo? beside ekiga, maybe
> amsn?
I heard that aMsn (you might need the SVN version again) works too.
Best regards,
Laurent Pinchart
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r or something.
The Linux UVC driver implements the V4L2 API. There is a V4L2 driver
development guide, but no such document for the application side as far as I
know. The V4L mailing list ([EMAIL PROTECTED]) might be more
helpful.
Best regards,
Laurent Pinchart
___
On Saturday 29 September 2007, Lars Täuber wrote:
> Hi Laurent,
>
> On Sat, 29 Sep 2007 00:02:09 +0200 Laurent Pinchart
<[EMAIL PROTECTED]> wrote:
> > That's a new one. I havent seen that webcam before. It might be based on
> > a new chipset.
>
> actually i
> revisions.
I can't apply the patch as-is. It must be ported to the SVN head first, and
some hardcoded assumptions must be removed. If someone wants to do the job,
and if we can find a way to integrate the patch without disturbing too much
the driver (other UVC devices must stil
he development process?
Please send the output of
lsusb -d 04f2:b015 -v
(with usbutils 0.72 or newer).
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dynctl api allows this additional functionality to be exported via
> the sysfs filesystem, too? Or would this require an additional sub-module
> e.g. uvcvideo-logitech.ko which exports this (and only this) additional
> functionality via sysfs?
No sysfs exports exists yet. What exactly do y
ast should be) underway. The idea is to integrate it with udev and
react to hotplug events. Once done, the V4L2 controls should be magically
back.
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,
> if I would like to control the LED at the moment, I would need to write
> my own code, correct? There's no way to access ioctls directly from
> within a shell? So having sysfs hooks for certain settings and controls
> would be very nice.
An alternative for now would be to use
ough extension units. This requires
dynctrl support in the driver and a userspace tool to add the required
controls. Implementation is underway. I'll keep the list informed as soon as
the first version becomes available.
> Attached file is result of lsusb -v.
Thanks.
Best regards,
Laurent
viable long-term solution though, as next firmware versions
won't work out of the box. On the other hand, newer firmwares might be even
less UVC compatible...
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; ./luvcview
>
> i get this report/messages:
>
> luvcview version 0.2.1
> Video driver: x11
> A window manager is available
> video /dev/video0
> Unable to set format: 5.
> Init v4L2 failed !! exit fatal
>
> what is wrong? what can i do?
Please post the kerne
and try again, it should then work.
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have a Ubuntu package or an
old version lying around.
> how can i uninstall it?
If you don't tell me how it got there in the first place I won't be able to
help.
> where can i get the newest driver?
You already checked it out from SVN.
Best regards,
Laurent Pinchart
_
gt; parts as time passed. And cause allocation failure.
>
> Does someone have any idea ?
For high-bandwidth isochronous streaming the driver allocates URB buffers that
can grow to 120kB. If this puts too much pressure on your system memory, try
t
Hi Hirofumi,
On Saturday 13 October 2007, Hirofumi Momose wrote:
> Hello Laurent,
>
> On Fri, 12 Oct 2007 01:09:07 +0200
>
> Laurent Pinchart <[EMAIL PROTECTED]> wrote:
> > Looks like it :-/ The problems you report on this mailing list have all
> > been interes
gt; >
> > 5. Install the driver. As root, run 'make install' in the sources
> > directory.
> >
> > 6. Load the driver. Depending on your system configuration this can be
> > done automatically when you plug your webcam in. If not, you can load the
>
B stack. It usually indicates faulty devices or
cables. What webcams do your complaining users use ?
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= xmap->v4l2_type;
> + map->data_type = xmap->data_type;
>
> ret = uvc_ctrl_add_mapping(map);
> if (ret < 0)
Thanks. Applied.
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Laurent Pinchart
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plementation issue and I'll try to get rid of it.
> Thanks,
>
> Brandon
>
> P.S. Is there a Logitech XU spec sheet somewhere? It would be nice to
> have information on the controls on my device.
There is no public document. I'll see if I can get them to release
ence on packets processing). Fixing the problem would mean
reworking to Linux USB stack completely and making it slower. Even if that's
something we wanted, it wouldn't be a simple task.
Best regards,
Laurent Pinchart
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eo_usercopy
> Oct 14 19:20:55 shashank-laptop kernel: [28659.98] uvcvideo: Unknown
> symbol video_device_release
Have you enabled V4L2 support in your kernel ?
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On Monday 15 October 2007, Sam Albuquerque wrote:
> On 14/10/2007, Laurent Pinchart <[EMAIL PROTECTED]> wrote:
> > Hi Sam,
> >
> > On Sunday 14 October 2007, Sam Albuquerque wrote:
> > > Hi,
> > >
> > > I am using an Acer Aspire 5103WLMi Lapt
gt; ioctl querycontrol error 22
> Camera gain level is -1
> Saving image to: snap.jpg
>
>
> I get the snap, but there are these errors about the camera settings.
>
> How can I fix it?
What does uvcvideo report in dmesg ?
Best regards,
Laurent Pinchart
_
Hi,
On Tuesday 16 October 2007 11:30, Claudio Montemaggiore - FAST S.p.A. wrote:
> - Original Message -
> From: "Laurent Pinchart" <[EMAIL PROTECTED]>
> To:
> Cc: "Claudio Montemaggiore - FAST S.p.A."
> <[EMAIL PROTECTED]>
> Sent: Mond
ated kernel log and
insmod/modprobe output message.
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ed new interface driver uvcvideo
> [ 938.420531] USB Video Class driver (v0.1.0)
>
>
> Is it impossible to use this in Linux env??
Please post the output of 'lsusb -d 22b8:6006 -v' (with usbutils 0.72 or
newer).
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> Any clues?
Please try the attached patch. I'll commit it if it fixes your problem.
Thanks for the detailed report.
Best regards,
Laurent Pinchart
Index: uvc_driver.c
===
--- uvc_driver.c (revision 132)
+++ uvc_driver
though.
Manual focus works but currently requires a userspace utility to setup
vendor-specific controls. The utility will be available soon.
Best regards,
Laurent Pinchart
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Hi Michael,
On Tuesday 16 October 2007, Michael E. Kromer wrote:
> On Tue, 2007-10-16 at 20:57 +0200, Laurent Pinchart wrote:
> > On Tuesday 16 October 2007, Michael E. Kromer wrote:
> > > Hi all,
> > >
> > > I've just received a
On Wednesday 17 October 2007 05:52, Brandon Philips wrote:
> On 00:00 Wed 17 Oct 2007, Richard Atterer wrote:
> > On Tue, Oct 16, 2007 at 08:59:08PM +0200, Laurent Pinchart wrote:
> > > Autofocus will never be implemented in the driver but it might be
> > > implem
e
> > > usb 2-1: USB disconnect, address 6
> > > usb 2-1: new full speed USB device using isp116x-hcd and address 7
> > > uvcvideo: Found UVC 1.00 device USB Web Camera (04cb:0172)
> > > usb 2-1: USB disconnect, address 7
> >
> > [snip]
> >
>
aven't been answered positively.
Best Regards,
Laurent Pinchart
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Hi Tharindu,
On Wednesday 17 October 2007, Tharindu Rukshan Bamunuarachchi wrote:
> Dear Laurent/All,
>
> Thank you very much for quick reply.
>
> Pls find attachment.
Thanks. Please try the attached patch.
Best regards,
Laurent Pinchart
In
ol to gather device supported controls.
luvcview prints supported controls when run with -l. There might be other
tools as well.
> How can I disable any unsupported control
How do you mean ?
> Seems to be I am at the edge ....
Best regards,
Laurent Pinchart
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