[libcamera-devel] How to activate AGC control in libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.

Mon Feb 15 12:10:37 CET 2021

Hello Nomura-san

Yes, I've been looking at the imx327 recently.

The latest Linux distributions for Raspberry Pi include a driver for
imx290, and the same one appears to work for imx327. There is also a
dtoverlay, in my /boot/config.txt I use:

dtoverlay=imx290,clock-frequency=74250000

Libcamera needs a CamHelper for the camera to work with the Pi and I
have one ready to submit, only it's waiting on some other patches that
are currently under review. But it shouldn't be too long.

I also have a tuning file, however, the module that I have here is of
the "NoIR" variety, so no sensible colour tuning is really possible.
I'll submit it with the CamHelper. I believe they're Innomaker
modules. Is this what you have or do you have something else?

Best regards
David

On Mon, 15 Feb 2021 at 06:10, <tetsuya.nomura at soho-enterprise.com> wrote:
>
> Dear Dave-san and Jacopo-san
>
> May I ask you a favor for handling IMX327 image sensor on qcam?
>
> Recently I have developed the camera module of IMX327.
>
> It would be great if you could give me the advice how to connect this sensor
> to RaspberryPi
> because I noticed you talked about the IMX327 overlay issue as below.
>
> > > I guess I ought to update the other couple of sensor overlays we
> > > have (imx327, imx290, ov9281, and ov7251) with rotation and
> > > orientation, although those don't currently have libcamera tunings.
> > > Several of them are mono too, which I don't believe has had much
> > > consideration so far....
>
> I'm expecting you have done the image tuning of this sensor to see the
> excellent image.
> And I'd like to know how to make the lens shading correction table in .json
> file
> to adjust the parameter for each lens.
>
> I really appreciate your kind help in advance.
>
> Best Regards,
>
> NOMURA
>
> ==== = = = = = = = = = = = = = = = = = = = =
> 双峰エンタープライズ株式会社　野村 哲哉
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> ジェントビル2F
> URL: https://soho-enterprise.com
> Email: tetsuya.nomura at soho-enterprise.com
> Phone: 090-1839-1135
> = = ==== = = = = = = = = = = = = = = = = = =
>
> -----Original Message-----
> From: Dave Stevenson <dave.stevenson at raspberrypi.com>
> Sent: Tuesday, November 24, 2020 6:27 PM
> To: Jacopo Mondi <jacopo at jmondi.org>
> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>; libcamera devel
> <libcamera-devel at lists.libcamera.org>; tetsuya.nomura at soho-enterprise.com
> Subject: Re: [libcamera-devel] How to activate AGC control in libcamera, or
> set the GAIN/EXPOSURE parameter by v4l2 command.
>
> Hi Jacopo
>
> On Tue, 24 Nov 2020 at 08:16, Jacopo Mondi <jacopo at jmondi.org> wrote:
> >
> > Hi Dave,
> >
> > On Mon, Nov 23, 2020 at 03:06:06PM +0000, Dave Stevenson wrote:
> > > Hi Laurent
> > >
> > > On Mon, 23 Nov 2020 at 10:22, Laurent Pinchart
> > > <laurent.pinchart at ideasonboard.com> wrote:
> > > >
> > > > Hi Kieran,
> > > >
> > > > On Mon, Nov 23, 2020 at 09:35:39AM +0000, Kieran Bingham wrote:
> > > > > On 23/11/2020 07:33, David Plowman wrote:
> > > > > > Hi again
> > > > > >
> > > > > > Good to hear that things are building again. As regards the
> > > > > > transform, I inserted the following:
> > > > > >
> > > > > >     config_->transform = Transform::HVFlip;
> > > > > >
> > > > > > at line 426 in the file libcamera/src/qcam/main_window.cpp,
> > > > > > just before the call to config_->validate(). This seemed to
> > > > > > rotate the image successfully. You could use
> > > > > > Transform::Identity, Transform::HFlip or Transform::VFlip instead.
> Good luck!
> > > > >
> > > > > I'm also currently working on a configuration file for
> > > > > libcamera, which would allow per-sensor specific properties to be
> set.
> > > > >
> > > > > So I hope in the nearish future we'll be able to set this in a
> > > > > config file in (perhaps /etc/libcamera/camera_sensor.json for
> > > > > instance) to handle 'per-device' type properties which can not be
> set in device tree.
> > > > >
> > > > > We expect properties like camera location / rotation to be
> > > > > specified by firmware/device-tree/acpi in the correct case - but
> > > > > that won't really be appropriate for this RPi case, where the
> > > > > camera can be positioned quite arbitrarily and isn't fixed ;-)
> > > >
> > > > Indeed :-) However, when making a product based on an RPi
> > > > platform, the camera location and rotation may be fixed. In that
> > > > case I'd like those properties to come from the device tree. We'll
> > > > have to figure out how to get the information out to system
> > > > integrators, to avoid them specifying those properties in
> configuration files then.
> > >
> > > I'll agree, it should come from device tree, either by the
> > > integrator creating their own custom dtoverlay (or possibly complete
> > > DT if based on the Compute Module), or by adding it as a parameter to
> the overlay.
> > >
> > > Looking at it I see that you submitted patches to the ov5647,
> > > imx219, and imx477 overlays to add a rotation parameter. That
> > > probably ought to be extended to add the orientation parameter.
> > > Slightly annoyingly it'll need to be set with the enum values of
> > > 0=front, 1=back, 2=external, but I don't see a way around that.
> > > Actually are there defines for use within DT at all? The equivalent
> > > of GPIO_ACTIVE_HIGH?
> >
> > This didn't make it yet:
> > https://patchwork.linuxtv.org/project/linux-media/patch/20200509090456
> > .3496481-14-jacopo at jmondi.org/
>
> Ah, right. I only looked at our downstream trees. I thought it had already
> been merged into mainline.
>
> > > I guess I ought to update the other couple of sensor overlays we
> > > have (imx327, imx290, ov9281, and ov7251) with rotation and
> > > orientation, although those don't currently have libcamera tunings.
> > > Several of them are mono too, which I don't believe has had much
> > > consideration so far....
> > >
> > >   Dave
> > >
> > > > > > On Mon, 23 Nov 2020 at 02:06, <tetsuya.nomura at soho-enterprise.com>
> wrote:
> > > > > >>
> > > > > >> Dear David-san
> > > > > >>
> > > > > >> Thanks to your instruction, now I can see the image.
> > > > > >> I'll do the long run test soon.
> > > > > >>
> > > > > >> Before that, I'd like to try to Vflip/Hflip function.
> > > > > >> I checked the transform.h and understood it can execute the v, h,
> v&h flip.
> > > > > >> However, I don't know how to apply the configuration when running
> the qcam.
> > > > > >> (I have no idea how to set the parameters, whether I need to
> > > > > >> modify the file and rebuild the qcam, Build option, or I can
> > > > > >> set the parameter as the command option.)
> > > > > >>
> > > > > >>> As regards the image orientation, the CameraConfiguration class
> has a field named "transform" which you can set before
> validating/configuring it, for example:
> > > > > >>> cameraConfig.transform = Transform::VFlip;
> > > > > >>
> > > > > >> It would be great if you could tell us more precise instruction.
> > > > > >>
> > > > > >> And talking about the video configuration, I'd like to change the
> image height and width.
> > > > > >> I'm trying the command like below to get 16:9 aspect image, "qcam
> -s height=1080 width=1920"
> > > > > >> But I only see the 4:3 full FoV image.
> > > > > >> I'd like to know more detailed instruction to use many of the
> video capture options you have prepared.
> > > > > >>
> > > > > >> And I'm really looking forward to evaluating your new camera
> applications below.
> > > > > >> It is what many of the raspi user are waiting for.
> > > > > >>> libcamera-based versions of our raspistill/raspivid
> > > > > >>> applications
> > > > > >>
> > > > > >> I appreciate you always give me the great help.
> > > > > >>
> > > > > >> Best Regards,
> > > > > >>
> > > > > >> NOMURA
> > > > > >> -----Original Message-----
> > > > > >> From: David Plowman <david.plowman at raspberrypi.com>
> > > > > >> Sent: Monday, November 23, 2020 12:11 AM
> > > > > >> To: tetsuya.nomura at soho-enterprise.com
> > > > > >> Cc: Naushir Patuck <naush at raspberrypi.com>; libcamera devel
> > > > > >> <libcamera-devel at lists.libcamera.org>
> > > > > >> Subject: Re: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>
> > > > > >> Hello Nomura-san
> > > > > >>
> > > > > >> Yes, I have had some similar errors in recent weeks, I'm not too
> sure why. There seems to be a new Python package required ("ply") and
> sometimes I've found myself having to delete the build directory under
> libcamera entirely and start over. Anyway, I've double-checked that the
> following instructions work, starting from a clean Raspberry Pi OS
> installation.
> > > > > >>
> > > > > >> First update the Pi's software as usual:
> > > > > >>
> > > > > >> sudo apt update
> > > > > >> sudo apt upgrade
> > > > > >> sudo rpi-update
> > > > > >>
> > > > > >> and then reboot it. Next install all the prerequisites for
> libcamera:
> > > > > >>
> > > > > >> sudo apt install libboost-dev sudo apt install
> > > > > >> libgnutls28-dev openssl libtiff5-dev sudo apt install meson
> > > > > >> sudo apt install qtbase5-dev libqt5core5a libqt5gui5
> > > > > >> libqt5widgets5 sudo pip3 install pyyaml ply
> > > > > >>
> > > > > >> Note the new "ply" Python package. Finally download and build
> libcamera:
> > > > > >>
> > > > > >> git clone git://linuxtv.org/libcamera.git cd libcamera meson
> > > > > >> build ninja -C build
> > > > > >>
> > > > > >> That all seemed to work for me. You may have read that we're
> (very soon, I hope!) introducing libcamera-based versions of our
> raspistill/raspivid applications and once those are available I'll be doing
> an update to all our related documentation.
> > > > > >>
> > > > > >> Best regards
> > > > > >> David
> > > > > >>
> > > > > >> On Sun, 22 Nov 2020 at 08:39,
> <tetsuya.nomura at soho-enterprise.com> wrote:
> > > > > >>>
> > > > > >>> Dear David-san.
> > > > > >>>
> > > > > >>> I retried the updating according to the instruction shown below
> URL.
> > > > > >>> https://www.raspberrypi.org/documentation/linux/software/lib
> > > > > >>> camera/REA
> > > > > >>> DME.md
> > > > > >>>
> > > > > >>> And when executing "meson build", the error occurred as attached
> log-file.
> > > > > >>>
> > > > > >>> We tried to recover the missing files but not succeeded in.
> > > > > >>> (I did under clean-installed environment but failed.)
> > > > > >>>
> > > > > >>> It would be great if you help us the problem above.
> > > > > >>>
> > > > > >>> Thank you very much for your help in advance.
> > > > > >>>
> > > > > >>> Best Regards,
> > > > > >>>
> > > > > >>> NOMURA
> > > > > >>>
> > > > > >>> ================================
> > > > > >>>   Tetsuya NOMURA
> > > > > >>> ================================  Soho Enterprise Ltd.
> > > > > >>>  4-11-26 Gent BLDG 2F, Asahi-cho, Atsugi-shi,  Kanagawa,
> > > > > >>> Japan
> > > > > >>> 243-0014
> > > > > >>>  URL: https://soho-enterprise.com
> > > > > >>>  Mail: tetsuya.nomura at soho-enterprise.com
> > > > > >>>  Phone: +81-90-1839-1135
> > > > > >>> ================================
> > > > > >>>
> > > > > >>> -----Original Message-----
> > > > > >>> From: David Plowman <david.plowman at raspberrypi.com>
> > > > > >>> Sent: Friday, November 20, 2020 6:48 PM
> > > > > >>> To: tetsuya.nomura at soho-enterprise.com
> > > > > >>> Cc: Naushir Patuck <naush at raspberrypi.com>; libcamera devel
> > > > > >>> <libcamera-devel at lists.libcamera.org>
> > > > > >>> Subject: Re: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>
> > > > > >>> Dear Nomura-san
> > > > > >>>
> > > > > >>> Thanks for your message. Obviously if the build problems persist
> please post details of the error and we'll try to help.
> > > > > >>>
> > > > > >>> As regards the image orientation, the CameraConfiguration class
> has a field named "transform" which you can set before
> validating/configuring it, for example:
> > > > > >>>
> > > > > >>> cameraConfig.transform = Transform::VFlip;
> > > > > >>>
> > > > > >>> Please refer to libcamera/include/libcamera/transform.h for all
> the possible values, but note that the Pi implementation does not support
> transforms that involve a transpose operation (so only Identity, HFlip,
> VFlip and HVFlip are allowed).
> > > > > >>>
> > > > > >>> I don't believe qcam has any way to set this from the command
> line, so you'd have to edit source code. At Raspberry Pi we're still
> intending to release libcamera-based versions of raspistill/raspicam which
> will have command line options to configure the transform, hopefully this
> won't be too much longer now!
> > > > > >>>
> > > > > >>> Best regards
> > > > > >>> David
> > > > > >>>
> > > > > >>> On Fri, 20 Nov 2020 at 07:04,
> <tetsuya.nomura at soho-enterprise.com> wrote:
> > > > > >>>>
> > > > > >>>> Dear David-san
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> We have tried rpi-update.
> > > > > >>>>
> > > > > >>>> We had the build error then.
> > > > > >>>>
> > > > > >>>> Do you have any idea for this problem?
> > > > > >>>>
> > > > > >>>> Anyway we’ll try clean install.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> By the way, we’d like to change the image orientation.
> > > > > >>>>
> > > > > >>>> I think v4l2 command support vertical/horizontal flip by
> changing the register of 0x172[1:0] .
> > > > > >>>>
> > > > > >>>> How can we apply this function when using qcam?
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> I appreciate your kind advice in advance.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Best Regards,
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> NOMURA
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> From: tetsuya.nomura at soho-enterprise.com
> > > > > >>>> <tetsuya.nomura at soho-enterprise.com>
> > > > > >>>> Sent: Sunday, November 8, 2020 8:55 AM
> > > > > >>>> To: 'David Plowman' <david.plowman at raspberrypi.com>
> > > > > >>>> Cc: 'Naushir Patuck' <naush at raspberrypi.com>; 'libcamera devel'
> > > > > >>>> <libcamera-devel at lists.libcamera.org>
> > > > > >>>> Subject: RE: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Dear David-san
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Thank you for the notification of fixing memory leak issue.
> > > > > >>>>
> > > > > >>>> I’ll try it soon.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Best Regards,
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> NOMURA
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> From: David Plowman <david.plowman at raspberrypi.com>
> > > > > >>>> Sent: Saturday, November 7, 2020 12:23 AM
> > > > > >>>> To: tetsuya.nomura at soho-enterprise.com
> > > > > >>>> Cc: Naushir Patuck <naush at raspberrypi.com>; libcamera devel
> > > > > >>>> <libcamera-devel at lists.libcamera.org>
> > > > > >>>> Subject: Re: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Hi everyone
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> This is just to let you know that doing "sudo rpi-update"
> should now update your kernel with a fix for this memory leak.
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> Best regards
> > > > > >>>>
> > > > > >>>> David
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>> On Sat, 10 Oct 2020 at 10:16, David Plowman
> <david.plowman at raspberrypi.com> wrote:
> > > > > >>>>
> > > > > >>>> Hello Nomura-san
> > > > > >>>>
> > > > > >>>> Thanks for sending that log. At least it seems to be
> > > > > >>>> showing the same thing that Naush saw, so hopefully there is
> only a single problem.
> > > > > >>>>
> > > > > >>>> You had previously mentioned the following two git commits:
> > > > > >>>>
> > > > > >>>> libcamera: c3548a333f86d31213ca9f2ccc3faf743b246743
> > > > > >>>> rpi-update: f794477c7c48061a720d6b9331d27f8d0300009c
> > > > > >>>>
> > > > > >>>> Can you perhaps confirm whether this version of the
> > > > > >>>> software, with the above commits at the top of the tree,
> > > > > >>>> did show the memory problem or did not show it?
> > > > > >>>>
> > > > > >>>> Best regards
> > > > > >>>> David
> > > > > >>>>
> > > > > >>>> On Sat, 10 Oct 2020 at 02:16,
> <tetsuya.nomura at soho-enterprise.com> wrote:
> > > > > >>>>>
> > > > > >>>>> Dear David-san and Naush-san
> > > > > >>>>>
> > > > > >>>>> We have another dmesg log as attached.
> > > > > >>>>>
> > > > > >>>>> Best Regards,
> > > > > >>>>>
> > > > > >>>>> NOMURA
> > > > > >>>>> -----Original Message-----
> > > > > >>>>> From: tetsuya.nomura at soho-enterprise.com
> > > > > >>>>> <tetsuya.nomura at soho-enterprise.com>
> > > > > >>>>> Sent: Saturday, October 10, 2020 8:20 AM
> > > > > >>>>> To: 'Naushir Patuck' <naush at raspberrypi.com>; 'David Plowman'
> > > > > >>>>> <david.plowman at raspberrypi.com>
> > > > > >>>>> Cc: 'libcamera-devel at lists.libcamera.org'
> > > > > >>>>> <libcamera-devel at lists.libcamera.org>
> > > > > >>>>> Subject: RE: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>>
> > > > > >>>>> Dear David-san and Naush-san
> > > > > >>>>>
> > > > > >>>>> And after login again and run the qcam, it stopped after a few
> minutes and see the login window.
> > > > > >>>>> But this time I could not login.(no dmseg was got after
> > > > > >>>>> this
> > > > > >>>>> symptom)
> > > > > >>>>>
> > > > > >>>>> While second trial of qcam the response speed for the click
> became very slow.
> > > > > >>>>> Image display speed kept 30.0fps.
> > > > > >>>>>
> > > > > >>>>> For an additional report.
> > > > > >>>>>
> > > > > >>>>> Best Regards,
> > > > > >>>>>
> > > > > >>>>> NOMURA
> > > > > >>>>> -----Original Message-----
> > > > > >>>>> From: tetsuya.nomura at soho-enterprise.com
> > > > > >>>>> <tetsuya.nomura at soho-enterprise.com>
> > > > > >>>>> Sent: Saturday, October 10, 2020 8:08 AM
> > > > > >>>>> To: 'Naushir Patuck' <naush at raspberrypi.com>; 'David Plowman'
> > > > > >>>>> <david.plowman at raspberrypi.com>
> > > > > >>>>> Cc: 'libcamera-devel at lists.libcamera.org'
> > > > > >>>>> <libcamera-devel at lists.libcamera.org>
> > > > > >>>>> Subject: RE: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>>
> > > > > >>>>> Dear David-san Naush-san
> > > > > >>>>>
> > > > > >>>>> I got reproduce the symptom and got the dmseg as attached.
> > > > > >>>>>
> > > > > >>>>> It would be great if it will be your help to solve the issue.
> > > > > >>>>>
> > > > > >>>>> Best Regards,
> > > > > >>>>>
> > > > > >>>>> NOMURA
> > > > > >>>>>
> > > > > >>>>> -----Original Message-----
> > > > > >>>>> From: Naushir Patuck <naush at raspberrypi.com>
> > > > > >>>>> Sent: Thursday, October 8, 2020 5:19 PM
> > > > > >>>>> To: tetsuya.nomura at soho-enterprise.com
> > > > > >>>>> Cc: David Plowman <david.plowman at raspberrypi.com>;
> > > > > >>>>> libcamera-devel at lists.libcamera.org
> > > > > >>>>> Subject: Re: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>>
> > > > > >>>>> Hi all,
> > > > > >>>>>
> > > > > >>>>> I did try a long running test, and interestingly, mine did
> also fail at around the 15hour mark (approx 1540000 frames).  My qcam
> process (running under gdb) was just terminated at that point.  However, no
> reboot occurred.  Looking at the dmesg logs, it seems that the Out of Memory
> killer terminated the task.  This suggests that there is maybe a memory leak
> lurking somewhere in either libcamera core or the Raspberry Pi ipa/pipeline
> handler.
> > > > > >>>>>
> > > > > >>>>> Nomura-san, could you send us the output of dmesg when you run
> into this failure again, just to check if we are seeing the same thing?
> > > > > >>>>>
> > > > > >>>>> Thanks,
> > > > > >>>>> Naush
> > > > > >>>>>
> > > > > >>>>> On Thu, 8 Oct 2020 at 07:48,
> <tetsuya.nomura at soho-enterprise.com> wrote:
> > > > > >>>>>>
> > > > > >>>>>> Dear David-san
> > > > > >>>>>>
> > > > > >>>>>> We took a log to catch when (how long time after application
> start) reboot occurs.
> > > > > >>>>>> The logs says around 1100minuite, maybe the raspi got
> rebooted, no other log.
> > > > > >>>>>>
> > > > > >>>>>> And the older version and the combination, this phenomena
> never happened.
> > > > > >>>>>>
> > > > > >>>>>> libcamera: c3548a333f86d31213ca9f2ccc3faf743b246743
> > > > > >>>>>> rpi-update: f794477c7c48061a720d6b9331d27f8d0300009c
> > > > > >>>>>> (We are using the latest one for both.)
> > > > > >>>>>>
> > > > > >>>>>> Best Regards,
> > > > > >>>>>>
> > > > > >>>>>> NOMURA
> > > > > >>>>>> -----Original Message-----
> > > > > >>>>>> From: David Plowman <david.plowman at raspberrypi.com>
> > > > > >>>>>> Sent: Wednesday, October 7, 2020 7:37 PM
> > > > > >>>>>> To: tetsuya.nomura at soho-enterprise.com
> > > > > >>>>>> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>;
> > > > > >>>>>> Kieran Bingham <kieran.bingham at ideasonboard.com>;
> > > > > >>>>>> libcamera-devel at lists.libcamera.org
> > > > > >>>>>> Subject: Re: [libcamera-devel] How to activate AGC control in
> libcamera, or set the GAIN/EXPOSURE parameter by v4l2 command.
> > > > > >>>>>>
> > > > > >>>>>> Hello Nomura-san
> > > > > >>>>>>
> > > > > >>>>>> Thanks for your message.
> > > > > >>>>>>
> > > > > >>>>>> So we're not aware of any problems like the one you report
> but we'll see if we can reproduce it - obviously it will take a little
> while. Do you believe the Pi crashed completely and rebooted? If so, might
> we be able to get any system logs that could give us a clue as to what
> happened?
> > > > > >>>>>>
> > > > > >>>>>> Thanks and best regards
> > > > > >>>>>> David
> > > >
> > > > --
> > > > Regards,
> > > >
> > > > Laurent Pinchart
> > > > _______________________________________________
> > > > libcamera-devel mailing list
> > > > libcamera-devel at lists.libcamera.org
> > > > https://lists.libcamera.org/listinfo/libcamera-devel
> > > _______________________________________________
> > > libcamera-devel mailing list
> > > libcamera-devel at lists.libcamera.org
> > > https://lists.libcamera.org/listinfo/libcamera-devel
>
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