@alex_ai

~ $ gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1920, height=1080,framerate=30/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory.
Additional debug info:
../sys/v4l2/gstv4l2src.c(976): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
Buffer pool activation failed
Execution ended after 0:00:00.003958838
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
Setting pipeline to NULL ...
Additional debug info:
../libs/gst/base/gstbasesrc.c(3132): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason not-negotiated (-4)
Freeing pipeline ...

@veye_xumm
I got the title wrong - I meant Picamera2. I need to start working in Opencv first.

~ $ rpicam-hello
[3:42:19.883111801] [3703]  INFO Camera camera_manager.cpp:330 libcamera v0.5.2+99-bfd68f78
[3:42:19.894406703] [3706]  INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:13:50)
[3:42:19.895982049] [3706]  WARN CameraSensorProperties camera_sensor_properties.cpp:499 No static properties available for 'mvcam'
[3:42:19.896044820] [3706]  WARN CameraSensorProperties camera_sensor_properties.cpp:501 Please consider updating the camera sensor properties database
[3:42:19.899758099] [3706] ERROR IPAProxy ipa_proxy.cpp:185 Configuration file 'mvcam_mono.json' not found for IPA module 'rpi/pisp'
[3:42:19.899815776] [3706] ERROR IPARPI ipa_base.cpp:152 Could not create camera helper for mvcam
[3:42:19.899835354] [3706] ERROR RPI pipeline_base.cpp:814 Failed to load a suitable IPA library
[3:42:19.899850764] [3706] ERROR RPI pisp.cpp:947 Failed to register camera mvcam 10-003b: -22
Made X/EGL preview window
ERROR: *** no cameras available ***

@alex_ai

command not found(((

~ $ v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1920, height=1080,framerate=30/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
bash: v4l2src: command not found

@alex_ai
error:

Setting pipeline to PAUSED ...
[0:20:26.080213248] [4028]  INFO Camera camera_manager.cpp:330 libcamera v0.5.2+99-bfd68f78
[0:20:26.088722626] [4031]  INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:13:50)
[0:20:26.094319101] [4031]  WARN CameraSensorProperties camera_sensor_properties.cpp:499 No static properties available for 'mvcam'
[0:20:26.094351897] [4031]  WARN CameraSensorProperties camera_sensor_properties.cpp:501 Please consider updating the camera sensor properties database
[0:20:26.100093147] [4031] ERROR IPAProxy ipa_proxy.cpp:185 Configuration file 'mvcam_mono.json' not found for IPA module 'rpi/pisp'
[0:20:26.100144183] [4031] ERROR IPARPI ipa_base.cpp:152 Could not create camera helper for mvcam
[0:20:26.100157665] [4031] ERROR RPI pipeline_base.cpp:814 Failed to load a suitable IPA library
[0:20:26.100168201] [4031] ERROR RPI pisp.cpp:947 Failed to register camera mvcam 10-003b: -22
ERROR: from element /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0: Could not find a camera named '/base/axi/pcie@120000/rp1/i2c@88000/veyemvcam@3b'.
Additional debug info:
../src/gstreamer/gstlibcamerasrc.cpp(489): gst_libcamera_src_open (): /GstPipeline:pipeline0/GstLibcameraSrc:libcamerasrc0:
libcamera::CameraMananger::get() returned nullptr
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

maybe this is the problem?

~ $ v4l2-ctl --list-devices
pispbe (platform:1000880000.pisp_be):
	/dev/video20
	/dev/video21
	/dev/video22
	/dev/video23
	/dev/video24
	/dev/video25
	/dev/video26
	/dev/video27
	/dev/video28
	/dev/video29
	/dev/video30
	/dev/video31
	/dev/video32
	/dev/video33
	/dev/video34
	/dev/video35
	/dev/media2
	/dev/media3

rp1-cfe (platform:1f00110000.csi):
	/dev/video0
	/dev/video1
	/dev/video2
	/dev/video3
	/dev/video4
	/dev/video5
	/dev/video6
	/dev/video7
	/dev/media0

rp1-cfe (platform:1f00128000.csi):
	/dev/media1

rpi-hevc-dec (platform:rpi-hevc-dec):
	/dev/video19
	/dev/media4

~ $ rpicam-hello
[0:30:49.476854480] [4953]  INFO Camera camera_manager.cpp:330 libcamera v0.5.2+99-bfd68f78
[0:30:49.484323268] [4956]  INFO RPI pisp.cpp:720 libpisp version v1.2.1 981977ff21f3 29-04-2025 (14:13:50)
[0:30:49.485435690] [4956]  WARN CameraSensorProperties camera_sensor_properties.cpp:499 No static properties available for 'mvcam'
[0:30:49.485459578] [4956]  WARN CameraSensorProperties camera_sensor_properties.cpp:501 Please consider updating the camera sensor properties database
[0:30:49.487403667] [4956] ERROR IPAProxy ipa_proxy.cpp:185 Configuration file 'mvcam_mono.json' not found for IPA module 'rpi/pisp'
[0:30:49.487445315] [4956] ERROR IPARPI ipa_base.cpp:152 Could not create camera helper for mvcam
[0:30:49.487458888] [4956] ERROR RPI pipeline_base.cpp:814 Failed to load a suitable IPA library
[0:30:49.487468962] [4956] ERROR RPI pisp.cpp:947 Failed to register camera mvcam 10-003b: -22
Made X/EGL preview window
ERROR: *** no cameras available ***

~ $ gst-inspect-1.0 | grep libcamerasrc
libcamera:  libcamerasrc: libcamera Source

The camera works fine in veye_viewer v1.1.4

When starting the sample opencv

mport cv2
import argparse
import subprocess

def main():
    # Set up command-line argument parser
    parser = argparse.ArgumentParser(description='Real-time display of GREY image from /dev/video0')
    parser.add_argument('--width', type=int, default=640, help='image width (default: 640)')
    parser.add_argument('--height', type=int, default=480, help='image height (default: 480)')
    parser.add_argument('--fps', type=int, default=30, help='frame rate (default: 30)')
    parser.add_argument('--ctldev', type=str, default='/dev/video0', help='For rpi5 only,subdevice for param setting')
    args = parser.parse_args()
    
    v4l2_cmd = f"v4l2-ctl -d {args.ctldev} --set-ctrl roi_x=0"
    subprocess.run(v4l2_cmd, shell=True)
    v4l2_cmd = f"v4l2-ctl -d {args.ctldev} --set-ctrl roi_y=0"
    subprocess.run(v4l2_cmd, shell=True)
    v4l2_cmd = f"v4l2-ctl -d '/dev/video0' --set-fmt-video=width={args.width},height={args.height}"
    subprocess.run(v4l2_cmd, shell=True)
    
    v4l2_cmd = f"v4l2-ctl -d {args.ctldev} --set-ctrl frame_rate={args.fps}"
    subprocess.run(v4l2_cmd, shell=True)
    
    # Open the /dev/video0 device
    cap = cv2.VideoCapture('/dev/video0')
    if not cap.isOpened():
        print("Failed to open video device")
        return

    # Set the image size
    cap.set(cv2.CAP_PROP_FRAME_WIDTH, args.width)
    cap.set(cv2.CAP_PROP_FRAME_HEIGHT, args.height)

    # Loop over frames and display them
    while True:
        # Read a frame
        ret, frame = cap.read()

        # Check if reading was successful
        if not ret:
            print("Failed to read frame")
            break

        # Display the frame
        cv2.imshow('VEYE MV camera GREY image preview', frame)

        # Exit if 'q' key is pressed
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

    # Release resources
    cap.release()
    cv2.destroyAllWindows()

if __name__ == '__main__':
    main()

it returns an error

[ WARN:0@0.135] global ./modules/videoio/src/cap_gstreamer.cpp (2401) handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module source reported: Could not read from resource.
[ WARN:0@0.136] global ./modules/videoio/src/cap_gstreamer.cpp (1356) open OpenCV | GStreamer warning: unable to start pipeline
[ WARN:0@0.136] global ./modules/videoio/src/cap_gstreamer.cpp (862) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
Failed to read frame


------------------
(program exited with code: 0)
Press return to continue

Please help me figure it out

@veye_xumm

That's right. It worked with the lens. Thank you very much for your technical support.

@veye_xumm

the program started
white screen - no image

sheko@raspberrypi:~ $ cd veye_viewer
chmod +x ./*
chmod 755 ./config/*.sh
./start_veye_viewer.sh
Platform detected: raspberrypi5
Launching veye_viewer...
[2026-01-28 07:59:42.882][INFO ][Main.cpp:0029] Start cleaning expired logs. Keep days: 30 | Deadline date: 2025-12-29
[2026-01-28 07:59:42.886][INFO ][Main.cpp:0056] Log clean completed. Total deleted files: 0
Done --> /home/sheko/veye_viewer/config/auto_camera_index.json

(veye_viewer:2119): GLib-GObject-CRITICAL **: 07:59:44.547: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Done --> /home/sheko/veye_viewer/config/auto_camera_index.json
Done --> /home/sheko/veye_viewer/config/auto_camera_index.json
[2026-01-28 08:00:53.233][WARN ][unknown_file:----] libpng warning: iCCP: known incorrect sRGB profile
[2026-01-28 08:00:53.234][WARN ][unknown_file:----] libpng warning: iCCP: known incorrect sRGB profile
[2026-01-28 08:00:53.235][WARN ][unknown_file:----] libpng warning: iCCP: known incorrect sRGB profile

@veye_xumm

Hi,
here is the result^

heko@raspberrypi:~/veye_viewer_RaspberryPi_bin $ ./start_veye_viewer.sh
bash: ./start_veye_viewer.sh: Permission denied

sheko@raspberrypi:~/veye_viewer_RaspberryPi_bin $ chmod 755 ./config/.sh
./start_veye_viewer.sh
chmod: cannot access './config/.sh': No such file or directory
bash: ./start_veye_viewer.sh: Permission denied

@veye_xumm './config/.sh': No such file or directory

what am I doing wrong?

sheko@raspberrypi:~ $ cd veye_viewer
chmod +x ./
chmod 755 ./config/.sh
./start_veye_viewer.sh
chmod: cannot access './config/.sh': No such file or directory
Platform detected: raspberrypi5
veye_viewer binary not found or not executable.

@veye_xumm The video is not displayed in the program

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh
Usage: ./mv_mipi_i2c_new.sh [-r/w] [function name] [param1] [param2 ] [param3] [param4] -b bus
options:
-r read
-w write
[function name] function name
[param1] param1 of each function
[param1] param2 of each function
[param3] param3 of each function
[param4] param4 of each function
-b [i2c bus num] i2c bus number
-d [i2c addr] i2c addr if not default 0x3b
Please open this srcipt and read the COMMENT on top for support functions and samples
sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r manufacturer -b 11
./mv_mipi_i2c_new.sh: line 453: Read i2c err -1
-36345312: syntax error in expression (error token is "i2c err -1
-36345312")

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r manufacturer -b 10
Manufacturer is VEYE

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r version -b 10
version is C 01.04 and L 00.00

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r errcode -b 10
errcode is 0x0

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r fmtcap -b 10
fmtcap is 0x3

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r readmodecap -b 10
r read mode capbility is 0x3

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r i2caddr -b 10
r i2c addr is 0x01

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -r minwh -b 10
r ROI min width is -1 height is -1

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w imgacq [0/1] -b 10
./mv_mipi_i2c_new.sh: line 615: printf: [0/1]: invalid number
w image acq is 00

sheko@raspberrypi:~/mv_tools_rpi $ ./mv_mipi_i2c_new.sh -w trgmode [0，2] -b 10
./mv_mipi_i2c_new.sh: line 815: printf: [0，2]: invalid number
w trigger mode is 0

sheko@raspberrypi:~ $ dmesg | grep mvcam
[ 0.029049] /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[ 0.029059] /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@110000
[ 0.029082] /axi/pcie@1000120000/rp1/csi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b
[ 0.029089] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b
[ 0.029211] /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[ 0.029221] /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@110000
[ 0.029246] /axi/pcie@1000120000/rp1/csi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b
[ 0.029254] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b
[ 0.410283] /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[ 0.410360] /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@110000
[ 0.410672] /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@110000
[ 0.410689] /axi/pcie@1000120000/rp1/csi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b
[ 0.410753] /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[ 0.410767] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b
[ 0.676352] /axi/pcie@1000120000/rp1/csi@128000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b
[ 0.676383] /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@128000
[ 0.676753] /axi/pcie@1000120000/rp1/csi@110000: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b
[ 0.676776] /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b: Fixed dependency cycle(s) with /axi/pcie@1000120000/rp1/csi@110000
[ 3.139990] rp1-cfe 1f00110000.csi: found subdevice /axi/pcie@1000120000/rp1/i2c@88000/veyemvcam@3b
[ 3.142880] rp1-cfe 1f00128000.csi: found subdevice /axi/pcie@1000120000/rp1/i2c@80000/veyemvcam@3b
[ 3.157307] veye_mvcam: loading out-of-tree module taints kernel.
[ 3.198535] mvcam 11-003b: veye mv series camera driver version: 01.01.08
[ 3.200894] mvcam 11-003b: Unable to load veye_vbyone driver,will go on
[ 3.703320] mvcam: mvcam_read: Reading register 0x04 failed
[ 3.703334] mvcam 11-003b: failed to read chip id
[ 3.704032] mvcam 10-003b: veye mv series camera driver version: 01.01.08
[ 3.709591] mvcam 10-003b: Unable to load veye_vbyone driver,will go on
[ 4.211903] mvcam 10-003b: camera is: RAW-MIPI-SC132M
[ 4.213695] mvcam 10-003b: firmware version: 0x1040000
[ 4.218412] mvcam 10-003b: Success to get mvcam endpoint data lanes, dts uses 2 lanes,will set to camera
[ 4.228280] mvcam 10-003b: mvcam_enum_controls success
[ 4.229657] rp1-cfe 1f00110000.csi: Using sensor mvcam 10-003b for capture

sheko@raspberrypi:~ $ v4l2-ctl --list-devices
pispbe (platform:1000880000.pisp_be):
/dev/video20
/dev/video21
/dev/video22
/dev/video23
/dev/video24
/dev/video25
/dev/video26
/dev/video27
/dev/video28
/dev/video29
/dev/video30
/dev/video31
/dev/video32
/dev/video33
/dev/video34
/dev/video35
/dev/media0
/dev/media1

rp1-cfe (platform:1f00110000.csi):
/dev/video0
/dev/video1
/dev/video2
/dev/video3
/dev/video4
/dev/video5
/dev/video6
/dev/video7
/dev/media2

rp1-cfe (platform:1f00128000.csi):
/dev/media3

rpi-hevc-dec (platform:rpi-hevc-dec):
/dev/video19
/dev/media4

sheko@raspberrypi:~ $ v4l2-ctl --device=/dev/video0 --all
Driver Info:
Driver name : rp1-cfe
Card type : rp1-cfe
Bus info : platform:1f00110000.csi
Driver version : 6.12.47
Capabilities : 0xaca00001
Video Capture
Metadata Capture
Metadata Output
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x24a00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : rp1-cfe
Model : rp1-cfe
Serial :
Bus info : platform:1f00110000.csi
Media version : 6.12.47
Hardware revision: 0x00114666 (1132134)
Driver version : 6.12.47
Interface Info:
ID : 0x03000014
Type : V4L Video
Entity Info:
ID : 0x00000012 (18)
Name : rp1-cfe-csi2_ch0
Function : V4L2 I/O
Pad 0x01000013 : 0: Sink, Must Connect
Link 0x02000034: from remote pad 0x1000006 of entity 'csi2' (Video Interface Bridge): Data
Priority: 2
Video input : 0 (rp1-cfe-csi2_ch0: ok)
Format Video Capture:
Width/Height : 1280/1080
Pixel Format : 'YUYV' (YUYV 4:2:2)
Field : None
Bytes per Line : 2560
Size Image : 2764800
Colorspace : Raw
Transfer Function : None
YCbCr/HSV Encoding: ITU-R 601
Quantization : Full Range
Flags :
Format Metadata Capture:
Sample Format : 'SENS' (Sensor Ancillary Metadata)
Buffer Size : 16384

sheko@raspberrypi:~ $ ffplay /dev/video0
ffplay version 5.1.8-0+deb12u1+rpt1 Copyright (c) 2003-2025 the FFmpeg developers
built with gcc 12 (Debian 12.2.0-14+deb12u1)
configuration: --prefix=/usr --extra-version=0+deb12u1+rpt1 --toolchain=hardened --incdir=/usr/include/aarch64-linux-gnu --enable-gpl --disable-stripping --disable-mmal --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sand --enable-sdl2 --disable-sndio --enable-libjxl --enable-neon --enable-v4l2-request --enable-libudev --enable-epoxy --libdir=/usr/lib/aarch64-linux-gnu --arch=arm64 --enable-pocketsphinx --enable-librsvg --enable-libdc1394 --enable-libdrm --enable-vout-drm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-librav1e --enable-shared
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
[video4linux2,v4l2 @ 0x7ffe94000c20 ioctl(VIDIOC_G_PARM): Inappropriate ioctl for device
[video4linux2,v4l2 @ 0x7ffe94000c20 Time per frame unknown
[video4linux2,v4l2 @ 0x7ffe94000c20] ioctl(VIDIOC_STREAMON): %(#ff0000)[Invalid argument
/dev/video0: Invalid argument]]]
nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0

sheko@raspberrypi:~ $ vlc
VLC media player 3.0.21 Vetinari (revision 3.0.21-0-gdd8bfdbabe8)
[000055563a0e9560] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[000055563a1898d0] main playlist: playlist is empty
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
[00007fff8c007cd0] v4l2 demux error: cannot get streaming parameters: Inappropriate ioctl for device
libv4l2: error turning on stream: Invalid argument
[00007fff8c007cd0] v4l2 demux error: cannot start streaming: Invalid argument
[00007fff8c007cd0] v4l2 demux error: not a radio tuner device
[00007fff8c0078d0] v4l2 stream error: cannot get streaming parameters: Inappropriate ioctl for device
libv4l2: error turning on stream: Invalid argument
[00007fff8c0078d0 v4l2 stream error: cannot start streaming: Invalid argument
sheko@raspberrypi:~ $]