ERROR CameraSensor camera_sensor.cpp:127 No image format found

deva seetharam tagsense at yahoo.com
Fri Mar 15 18:05:37 CET 2024


 Thank you, Kieran!I made the change you suggested. 
Now, when I run libcamera-hello, I get the following error messages. Please advise how to resolve these errors.

radiostudio at imx:~ $ libcamera-hello 

[0:03:13.606988987] [1991]  INFO Camera camera_manager.cpp:284 libcamera v0.2.0+46-075b54d5

[0:03:13.628537890] [1997]  WARN CameraSensor camera_sensor.cpp:248 'xyz123 10-0036': Recommended V4L2 control 0x009a0922 not supported

[0:03:13.628620872] [1997]  WARN CameraSensor camera_sensor.cpp:315 'xyz123 10-0036': The sensor kernel driver needs to be fixed

[0:03:13.628650260] [1997]  WARN CameraSensor camera_sensor.cpp:317 'xyz123 10-0036': See Documentation/sensor_driver_requirements.rst in the libcamera sources for more information

[0:03:13.629229908] [1997]  WARN CameraSensorProperties camera_sensor_properties.cpp:274 No static properties available for 'xyz123'

[0:03:13.629268186] [1997]  WARN CameraSensorProperties camera_sensor_properties.cpp:276 Please consider updating the camera sensor properties database

[0:03:13.629299316] [1997]  WARN CameraSensor camera_sensor.cpp:463 'xyz123 10-0036': Failed to retrieve the camera location

[0:03:13.629328705] [1997]  WARN CameraSensor camera_sensor.cpp:485 'xyz123 10-0036': Rotation control not available, default to 0 degrees

[0:03:13.651220959] [1997] ERROR IPARPI ipa_base.cpp:124 Could not create camera helper for xyz123

[0:03:13.651336904] [1997] ERROR RPI pipeline_base.cpp:804 Failed to load a suitable IPA library

[0:03:13.651366644] [1997] ERROR RPI vc4.cpp:216 Failed to register camera xyz123 10-0036: -22

Made X/EGL preview window

ERROR: *** no cameras available ***


when I do a dmesg -T | grep -i xyz123, I get the following messages:[Fri Mar 15 21:45:33 2024] xyz123: loading out-of-tree module taints kernel.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_probe has been invoked to probe xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: allocated memory for xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_check_hwcfg has been invoked to check xyz123 hardware config.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: number of csi lanes: 2.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_power_on has been invoked to power xyz123 up.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_write_registers has been invoked with number of registers set to: 03[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 0103[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 3205[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 0100[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 3205[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_identify_module has been invoked to identify xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register has been invoked with address: 0x302A[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register prepared a I2C write message with: addr: 0x36, flags: 0x00, len: 0x02[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register prepared a I2C read message with: addr: 0x36, flags: 0x01, len: 0x01[Fri Mar 15 21:45:33 2024] xyz123 10-0036: chip id first byte matches: 4 == 4[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register has been invoked with address: 0x302B[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register prepared a I2C write message with: addr: 0x36, flags: 0x00, len: 0x02[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_read_register prepared a I2C read message with: addr: 0x36, flags: 0x01, len: 0x01[Fri Mar 15 21:45:33 2024] xyz123 10-0036: chip id second byte matches: 28 == 28[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_init_ctrls has been invoked to initialize controls of xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_init_ctrls succesfully initialized controls[Fri Mar 15 21:45:33 2024] xyz123 10-0036: default pixel rate of xyz123: 10804320.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: current link frequency of xyz123: 192000000.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: default vblank of xyz123: 8.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: default hblank of xyz123: 8.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: Default width specified in device tree: 720[Fri Mar 15 21:45:33 2024] xyz123 10-0036: Default height specified in device tree: 720[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has been invoked to set default format of xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set code to 12295.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set colorspace to 8.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set ycbcr_enc to 1.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set quantization to 1.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set xfer_func to 2.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set width to 720.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set height to 720.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has set field to 1.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_set_default_format has completed.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_probe has initialized media entity pads for xyz123 to 0 and 2.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_probe has registered the subdevice of xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_probe has completed probing xyz123.[Fri Mar 15 21:45:33 2024] xyz123 10-0036: xyz123_power_off has been invoked to power xyz123 down.[Fri Mar 15 21:45:35 2024] xyz123 10-0036: Consider updating driver xyz123 to match on endpoints[Fri Mar 15 21:45:38 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.[Fri Mar 15 21:45:38 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_enum_mbus_code is exiting.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 1.[Fri Mar 15 21:45:41 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.[Fri Mar 15 21:45:42 2024] xyz123 10-0036: __xyz123_get_pad_format has been invoked.[Fri Mar 15 21:45:42 2024] xyz123 10-0036: format is NOT V4L2_SUBDEV_FORMAT_TRY.



    On Friday, March 15, 2024 at 06:24:43 PM GMT+5:30, Kieran Bingham <kieran.bingham at ideasonboard.com> wrote:  
 
 Quoting deva seetharam (2024-03-15 12:31:14)
> Thank you once again, Dave!
> I have changed the code to use only the first (and only) entry in codes array as follows. However, as per dmesg, these functions are getting called repeatedly. When I run libcamera-hello or rpicam-hello, it prints one line ([0:41:31.852290414] [10447]  INFO Camera camera_manager.cpp:284 libcamera v0.2.0+46-075b54d5] and hangs. I don't know how to proceed. Please advise.
> 
> As you guessed, I read the codes drivers of image sensors such as imx219 to write this driver. 
> I read books such as the ones by Rubini and Madieu, and many web pages such as Video for Linux 2 API pages, etc. But, I could not get a clear picture of the structure of a V4L2 driver for an image sensor. 
> 
> Could you please recommend any relevant material? Thank you! 
> 
>  
> 
> static u32 oah0428_get_format_code(struct xyz123 *xyz123, u32 code)
> {
>     unsigned int i;
>     struct i2c_client *client = v4l2_get_subdevdata(&xyz123->sd);
> 
>     
> 
>     dev_dbg(&client->dev,
>             "%s has been invoked to get format code of xyz123.\n",
>             __func__);
> 
>     return codes[0];
> }
> 
> 
> static int xyz123_enum_mbus_code(struct v4l2_subdev *sd,
>                  struct v4l2_subdev_state *sd_state,
>                  struct v4l2_subdev_mbus_code_enum *code)
> {
>     struct xyz123 *xyz123 = to_xyz123(sd);
>     struct i2c_client *client = v4l2_get_subdevdata(&xyz123->sd);
> 
> 
>     dev_dbg(&client->dev, "%s has been invoked.\n", __func__);
>     mutex_lock(&xyz123->mutex);
>     code->code = xyz123_get_format_code(xyz123, codes[0]);
>     mutex_unlock(&xyz123->mutex);
> 
>     return 0;
> }
> 

If you always return success on these functions the enumeration becomes
an infinite loop. You have to check the index and return an error when
you have returned all your codes.
--
Kieran


> 
> 
> 
> 
> 
> On Wednesday, March 13, 2024 at 04:46:46 PM GMT+5:30, Dave Stevenson <dave.stevenson at raspberrypi.com> wrote: 
> 
> 
> 
> 
> 
> Hi Deva
> 
> On Wed, 13 Mar 2024 at 03:28, deva seetharam <tagsense at yahoo.com> wrote:
> >
> > Thank you, Dave and Laurent, for your inputs. I am not the decision maker about open sourcing. But, I talked to the client. They are saying they will open source the driver, if this sensor is released as a product. At this stage, it is just a skunk project to check the feasibility.
> > Here is the driver prototype source code for your review and advice: https://pastebin.com/nGkJsZP0.
> > Looking forward to your advice on fixing the issues. Thank you!
> 
> So it is as I hypothesised - you're not advertising the formats correctly.
> 
> static const u32 codes[] = {MEDIA_BUS_FMT_SBGGR10_1X10};
> ...
> static int xyz123_enum_mbus_code(struct v4l2_subdev *sd,
>                                 struct v4l2_subdev_state *sd_state,
>                                 struct v4l2_subdev_mbus_code_enum *code)
> {
> ...
>     if (code->index >= (ARRAY_SIZE(codes) / 4))
>     {
>         dev_err(&client->dev, "In %s, code-> index is too large: %d.\n",
>                 __func__, code->index);
>         return -EINVAL;
>     }
> 
> ARRAY_SIZE(codes) = 1, so ARRAY_SIZE(codes) / 4 = 0 (integer maths).
> 
> You've presumably copied from imx219 or similar which has an array in
> codes due to the Bayer order changing due to flips. You've removed
> bits of that, but not here.
> I'd confirm whether your sensor does change Bayer order or not with
> flips, and either reinstate it or totally remove it.
> 
> 
>   Dave
> 
> >
> >
> > On Monday, March 11, 2024 at 07:34:04 PM GMT+5:30, Dave Stevenson <dave.stevenson at raspberrypi.com> wrote:
> >
> >
> >
> >
> >
> > Hi Deva
> >
> > On Sat, 9 Mar 2024 at 11:00, deva seetharam <tagsense at yahoo.com> wrote:
> > >
> > > Greetings!!
> > >
> > > For a new image sensor (due to a restrictive NDA, cannot reveal the manufacturer or the part number), I have to create the device tree source file and the kernel driver. I have compiled and installed the device tree and kernel module. I see the kernel module is getting loaded and the overlay is getting accepted into device tree. However, when I run libcamera, I get the following error:
> > >
> > > [0:00:41.253567807] [1920] ERROR CameraSensor camera_sensor.cpp:127 'xyz123 10-0036': No image format found
> > > [0:00:41.253599677] [1920] ERROR RPI vc4.cpp:216 Failed to register camera xyz123 10-0036: -22
> >
> > Address 0x36 - that'll likely be Omnivision then.
> >
> > > Please suggest how this error can be fixed. Thank you!
> > >
> > > I am also including the dts file, (relevant portions of) lsmod and dmesg outputs.
> > >
> > >
> > > the device tree overlay file is as follows:
> > > <pre>
> > > /dts-v1/;
> > > /plugin/;
> > >
> > >
> > > #include <dt-bindings/gpio/gpio.h>
> > >
> > >
> > > / {
> > >    compatible = "brcm,bcm2835";
> > >
> > >
> > >    fragment at 0 {
> > >        target = <&i2c0if>;
> > >        __overlay__ {
> > >            status = "okay";
> > >        };
> > >    };
> > >
> > >
> > >    clk_frag: fragment at 1 {
> > >        target = <&cam1_clk>;
> > >        __overlay__ {
> > >            status = "okay";
> > >            clock-frequency = <24000000>;
> > >        };
> > >    };
> > >
> > >
> > >    i2c_frag: fragment at 100 {
> > >        target = <&i2c_csi_dsi>;
> > >        __overlay__ {
> > >            #address-cells = <1>;
> > >            #size-cells = <0>;
> > >            status = "okay";
> > >
> > >
> > >            xyz123: xyz123 at 36 {
> > >                compatible = "abc,xyz123";
> > >                reg = <0x36>;
> > >
> > >
> > >                clocks = <&cam1_clk>;
> > >                clock-names = "xclk";
> > >
> > >
> > >                port {
> > >                    cam_endpoint: endpoint {
> > >                        clock-lanes = <0>;
> > >                        data-lanes = <1 2>;
> > >                        clock-noncontinuous;
> > >                        link-frequencies = /bits/ 64 <192000000>;
> > >                    };
> > >                };
> > >            };
> > >        };
> > >    };
> > >
> > >
> > >    csi_frag: fragment at 101 {
> > >        target = <&csi1>;
> > >        csi: __overlay__ {
> > >            status = "okay";
> > >            brcm,media-controller;
> > >
> > >
> > >            port {
> > >                csi_ep: endpoint {
> > >                    remote-endpoint = <&cam_endpoint>;
> > >                    clock-lanes = <0>;
> > >                    data-lanes = <1 2>;
> > >                    clock-noncontinuous;
> > >                };
> > >            };
> > >        };
> > >    };
> > >
> > >
> > > };
> > >
> > >
> > > &xyz123 {
> > >    status = "okay";
> > >    default-width = <720>;
> > >    default-height = <720>;
> > > };
> > >
> > >
> > > &cam_endpoint {
> > >    remote-endpoint = <&csi_ep>;
> > > };
> > >
> > >
> > >
> > > the output of lsmod is as follows:
> > > <pre>
> > > xyz123                24576  1
> > > v4l2_fwnode            24576  2 xyz123,bcm2835_unicam
> > > v4l2_async            24576  3 v4l2_fwnode,xyz123,bcm2835_unicam
> > > videodev              278528  10 v4l2_async,bcm2835_codec,xyz123,videobuf2_v4l2,bcm2835_unicam,bcm2835_v4l2,videobuf2_common,rpivid_hevc,v4l2_mem2mem,bcm2835_isp
> > > mc                    61440  10 v4l2_async,videodev,bcm2835_codec,xyz123,videobuf2_v4l2,bcm2835_unicam,videobuf2_common,rpivid_hevc,v4l2_mem2mem,bcm2835_isp
> > >
> > > </pre>
> > >
> > > the output of dmesg is as follows:
> > > [Sat Mar  9 15:58:15 2024] xyz123: loading out-of-tree module taints kernel.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_probe has been invoked to probe xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: allocated memory for xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_check_hwcfg has been invoked to check xyz123 hardware config.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: number of csi lanes: 2.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_power_on has been invoked to power xyz123 up.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_write_registers has been invoked with number of registers set to: 03
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 0103
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 3205
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 0100
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_write_register has been invoked with address: 3205
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_identify_module has been invoked to identify xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register has been invoked with address: 0x302A
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register prepared a I2C write message with: addr: 0x36, flags: 0x00, len: 0x02
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register prepared a I2C read message with: addr: 0x36, flags: 0x01, len: 0x01
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: chip id first byte matches: 4 == 4
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register has been invoked with address: 0x302B
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register prepared a I2C write message with: addr: 0x36, flags: 0x00, len: 0x02
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_read_register prepared a I2C read message with: addr: 0x36, flags: 0x01, len: 0x01
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: chip id second byte matches: 28 == 28
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_init_ctrls has been invoked to initialize controls of xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_init_ctrls succesfully initialized controls
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: default pixel rate of xyz123: 10804320.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: current link frequency of xyz123: 192000000.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: default vblank of xyz123: 8.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: default hblank of xyz123: 8.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: Default width specified in device tree: 720
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: Default height specified in device tree: 720
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has been invoked to set default format of xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set code to 12295.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set colorspace to 8.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set ycbcr_enc to 1.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set quantization to 1.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set xfer_func to 2.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set width to 720.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set height to 720.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has set field to 1.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_set_default_format has completed.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_probe has initialized media entity pads for xyz123 to 0 and 2.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_probe has registered the subdevice of xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_probe has completed probing xyz123.
> > > [Sat Mar  9 15:58:15 2024] xyz123 10-0036: xyz123_power_off has been invoked to power xyz123 down.
> > > [Sat Mar  9 15:58:17 2024] xyz123 10-0036: Consider updating driver xyz123 to match on endpoints
> > > [Sat Mar  9 15:58:19 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.
> > > [Sat Mar  9 15:58:19 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.
> > > [Sat Mar  9 15:58:19 2024] xyz123 10-0036: h_flip: 0, v_flip: 0, code_index: 0 and 12295 of xyz123.
> > > [Sat Mar  9 15:58:22 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.
> > > [Sat Mar  9 15:58:22 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.
> > > [Sat Mar  9 15:58:22 2024] xyz123 10-0036: h_flip: 0, v_flip: 0, code_index: 0 and 12295 of xyz123.
> > > [Sat Mar  9 15:58:22 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:22 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> >
> > That looks like the likely issue if your limit is 0, so you're not
> > returning the supported formats via enum_mbus_code.
> >
> > Confirm what "v4l2-ctl -d /dev/v4l-subdev0  --list-subdev-mbus-codes
> > 0" returns. It should be along the lines of:
> >
> > pi at raspberrypi:~ $ v4l2-ctl -d /dev/v4l-subdev0  --list-subdev-mbus-codes 0
> > ioctl: VIDIOC_SUBDEV_ENUM_MBUS_CODE (pad=0)
> >    0x3007: MEDIA_BUS_FMT_SBGGR10_1X10
> >
> > Based on your code of 12295 (0x3007 aka MEDIA_BUS_FMT_SBGGR10_1X10)
> > from set_default_format, that should be returned for index 0, and
> > -EINVAL otherwise.
> >
> > As Laurent says, anything more will need reviewing of the driver source.
> >
> >  Dave
> >
> >
> > > [Sat Mar  9 15:58:24 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:24 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > > [Sat Mar  9 15:58:24 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:24 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > > [Sat Mar  9 15:58:32 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.
> > > [Sat Mar  9 15:58:32 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.
> > > [Sat Mar  9 15:58:32 2024] xyz123 10-0036: h_flip: 0, v_flip: 0, code_index: 0 and 12295 of xyz123.
> > > [Sat Mar  9 15:58:32 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:32 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > > [Sat Mar  9 15:58:33 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:33 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > > [Sat Mar  9 15:58:33 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:33 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > > [Sat Mar  9 15:58:51 2024] xyz123 10-0036: xyz123_open has been invoked to open xyz123.
> > > [Sat Mar  9 15:58:51 2024] xyz123 10-0036: xyz123_get_format_code has been invoked to get format code of xyz123.
> > > [Sat Mar  9 15:58:51 2024] xyz123 10-0036: h_flip: 0, v_flip: 0, code_index: 0 and 12295 of xyz123.
> > > [Sat Mar  9 15:58:51 2024] xyz123 10-0036: xyz123_enum_mbus_code has been invoked.
> > > [Sat Mar  9 15:58:51 2024] xyz123 10-0036: In xyz123_enum_mbus_code, code-> index has reached limit: 0.
> > >
> > >
> > >
  
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