Thanks for sharing the header file. I have downloaded that and deployed using dpkg -i <packge name> In order to deploy the VFD, the steps I have followed are given here. I have enclosed the attachment that contains commands and their outcome to keep this post shorter. Below given error message while trying to start the openvfd.service root@x98h:~/linux_openvfd#systemctl daemon-reload root@x98h:~/linux_openvfd# systemctl start openvfd.service Job for openvfd.service failed because the control process exited with error code. See "systemctl status openvfd.service" and "journalctl -xeu openvfd.service" for details. root@x98h:~/linux_openvfd# systemctl status openvfd.service × openvfd.service - openvfd Loaded: loaded (/etc/systemd/system/openvfd.service; disabled; preset: ena> Active: failed (Result: exit-code) since Tue 2026-06-02 00:07:40 IST; 4min> Process: 2297 ExecStartPre=/usr/bin/sh -c . /etc/openvfd.conf; /usr/sbin/mo> Process: 2299 ExecStopPost=/usr/sbin/rmmod openvfd (code=exited, status=1/F> CPU: 47ms Jun 02 00:07:40 x98h systemd[1]: Starting openvfd.service - openvfd... Jun 02 00:07:40 x98h sh[2298]: modprobe: ERROR: could not insert 'openvfd': Exe> Jun 02 00:07:40 x98h systemd[1]: openvfd.service: Control process exited, code=> Jun 02 00:07:40 x98h rmmod[2299]: rmmod: ERROR: Module openvfd is not currently> Jun 02 00:07:40 x98h systemd[1]: openvfd.service: Failed with result 'exit-code> Jun 02 00:07:40 x98h systemd[1]: Failed to start openvfd.service - openvfd. Jun 02 00:07:40 x98h systemd[1]: Failed to start openvfd.service - openvfd. ░░ Subject: A start job for unit openvfd.service has failed ░░ Defined-By: systemd ░░ Support: https://www.debian.org/support ░░ ░░ A start job for unit openvfd.service has finished with a failure. ░░ ░░ The job identifier is 782 and the job result is failed. Jun 02 00:15:18 x98h systemd[1]: Starting openvfd.service - openvfd... ░░ Subject: A start job for unit openvfd.service has begun execution ░░ Defined-By: systemd ░░ Support: https://www.debian.org/support ░░ ░░ A start job for unit openvfd.service has begun execution. ░░ ░░ The job identifier is 855. Jun 02 00:15:18 x98h sh[2317]: modprobe: ERROR: could not insert 'openvfd': Exec format error Jun 02 00:15:18 x98h systemd[1]: openvfd.service: Control process exited, code=exited, status=1/FAILURE ░░ Subject: Unit process exited ░░ Defined-By: systemd ░░ Support: https://www.debian.org/support ░░ ░░ An ExecStartPre= process belonging to unit openvfd.service has exited. ░░ ░░ The process' exit code is 'exited' and its exit status is 1. Jun 02 00:15:18 x98h rmmod[2318]: rmmod: ERROR: Module openvfd is not currently loaded Jun 02 00:15:18 x98h systemd[1]: openvfd.service: Failed with result 'exit-code'. ░░ Subject: Unit failed ░░ Defined-By: systemd ░░ Support: https://www.debian.org/support ░░ ░░ The unit openvfd.service has entered the 'failed' state with result 'exit-code'. Jun 02 00:15:18 x98h systemd[1]: Failed to start openvfd.service - openvfd. ░░ Subject: A start job for unit openvfd.service has failed ░░ Defined-By: systemd ░░ Support: https://www.debian.org/support ░░ ░░ A start job for unit openvfd.service has finished with a failure. ░░ ░░ The job identifier is 855 and the job result is failed. VFD_Service_Logs.txt

@sr4armbian You need this kernel header. https://github.com/NickAlilovic/build/releases/download/20250306/linux-headers-edge-sunxi64_25.05.0-trunk_arm64__6.12.11-S62b2-Da873-P6755-C1a9bH02eb-HK01ba-Vc222-B9bbb-R448a.deb

@Nick A Thanks for your reply. This box got FD6551 chip set that is handling the Front Side Display. I have opened the box and double checked this. I also checked the status of the VFD when the box booted from Android image it came with. The VFD looks similar to the one found in the picture given here. Below given is the section from stock android dts file. I can share the entire dts if you are looking for any other specific details. fd655_para { device_type = "fd655_para"; compatible = "Ik,fd655_dev"; fd655_clk_io = <0x23 0x07 0x06 0x01>; fd655_dat_io = <0x23 0x07 0x07 0x01>; status = "okay"; }; Since the alternate VFD configuration requires latest Linux headers, I am getting errors and I have posted about that in the respective thread in this forum. Trying to deploy the OpenVFD which could be possible. I will share the boot logs at the earliest.

The blue revision is not different in this case. I have it running here too. My recommendation would be to flash the u-boot spi bin inside the u-boot deb generated by armbian build. `dpkg -x xyz.deb ./output` and rkdeveloptool are the things to use here

Hello @mBesar, while I can build images with additional kernel modules, the next "apt-get upgrade" may install a newer kernel that discards such additions. Why not build this on your own? There is already a working DKMS build system on the board for the bcmdhd wifi module. On the next kernel update, DKMS will recompile bcmdhd.ko for the new kernel automatically. Sadly, when I tried this for b2c2-flexcop-usb, it was not too easy to do. Armbian does not provide kernel sources with "apt-source", and the mentioned module itself uses an additional "-i include-dir" during build. So as an example, try to do this on your board: As root: # Change two times "Types: deb deb-src" nano /etc/apt/sources.list.d/debian.sources # Check for avail linux image packages, this time 6.18.5-deb13-parisc apt-get update grep linux-image /var/lib/apt/lists/*Sources|grep 6\\.18|less -S # We are not interested in this image, we just need some source code cd /usr/src apt-get source linux-image-6.18.5+deb13-parisc # Add a new DKMS module (dkms already here b/c bcmdhd wifi driver) mkdir /usr/src/b2c2-flexcop-usb-6.18 cd /usr/src/b2c2-flexcop-usb-6.18 cat > dkms.conf << "EOF" PACKAGE_NAME="b2c2-flexcop-usb" PACKAGE_VERSION="6.18" BUILT_MODULE_NAME[0]="b2c2-flexcop-usb" DEST_MODULE_LOCATION[0]="/updates/dkms" AUTOINSTALL="yes" MAKE="make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build CONFIG_DVB_B2C2_FLEXCOP_USB=m" EOF # What subsys do we need? Says: drivers/media/usb/b2c2, then grab that dir grep DVB_B2C2_FLEXCOP_USB $(find /usr/src/linux-6.18.5 -name Kconfig*) cp -av /usr/src/linux-6.18.5/drivers/media/usb/b2c2/. . # The module Makefile uses an additional include dir. We simply copy them here cp -av /usr/src/linux-6.18.5/drivers/media/common/b2c2/*.h . # Register, build, and install dkms add -m b2c2-flexcop-usb -v 6.18 dkms build -m b2c2-flexcop-usb -v 6.18 dkms install -m b2c2-flexcop-usb -v 6.18 HTH // Sven-Ola