c0rnelius

sudo modprobe i2c-dev ?

@ScoreABSM https://github.com/armbian/build/pull/8339

@KrzyPac You apply the patch to the kernel source-tree, In this case we will use meson64 as an example. Add the patch to: patch/kernel/archive/meson64-6.12/ Enable in the defconfig: echo "CONFIG_OPENVFD=m" >> config/kernel/linux-meson64-current.config Build a new IMG or KERNEL as one normally would for your unit. general-drv-auxdisplay-Add-openvfd-driver.patch

This is being worked on https://lore.kernel.org/linux-sunxi/20250526002924.2567843-1-james.hilliard1@gmail.com/T/#t There is a version of this that was ported over from a vendor kernel to Armbian. https://github.com/armbian/build/pull/6617

As far as I know openvfd needs to be re-worked to support 6.12.y and up.

Here is a more vanilla build of the kernel. patrick@bananapim4zero:~$ ls /dev/ttyS* /dev/ttyS0 /dev/ttyS3 /dev/ttyS5 /dev/ttyS7 /dev/ttyS2 /dev/ttyS4 /dev/ttyS6 patrick@bananapim4zero:~$ sudo rfkill ID TYPE DEVICE SOFT HARD 0 bluetooth hci0 unblocked unblocked 1 wlan phy0 unblocked unblocked patrick@bananapim4zero:~$ bluetoothctl hci0 new_settings: powered bondable ssp br/edr le secure-conn Agent registered [CHG] Controller AC:6A:A3:3B:D9:D6 Pairable: yes [bluetoothctl]> exit patrick@bananapim4zero:~$ uname -a Linux bananapim4zero 6.12.32 #1 SMP Sat Jun 7 17:23:51 EDT 2025 aarch64 GNU/Linux patrick@bananapim4zero:~$ dmesg | grep brcm [ 9.007064] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6 [ 9.007614] usbcore: registered new interface driver brcmfmac [ 9.303238] brcmfmac: brcmf_c_process_txcap_blob: no txcap_blob available (err=-2) [ 9.303576] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Aug 29 2023 01:47:08 version 7.45.265 (28bca26 CY) FWID 01-b677b91b [ 9.430799] Bluetooth: hci0: BCM4345C0 'brcm/BCM4345C0.sinovoip,bpi-m4-zero.hcd' Patch As you can see the Bluetooth works fine. If I add these two patches it breaks bluetooth on this kernel build. drv-rtc-sun6i-support-RTCs-without-external-LOSCs.patch drv-rtc-sun6i-Add-Allwinner-H616-support.patch I'm still investigating in my spare time, but I'm not 100% on anything. Could be I need to take another approach to the bluetooth node in Armbian? So this is where am at. If anyone has any thoughts I'm all ears.

@ScoreABSM I don't think that is the reason? No, I haven't solved the Bluetooth issue. I have theories, but I still haven't cracked the nut. You are more than welcome to give it a whirl

@KrzyPac Ur welcome.

@KrzyPac I suspect you just need the DTB correct? Git clone the armbian/build, place the patch in patch/kernel/archive/meson64-6.12/ and build any meson64 board. ./compile.sh KERNEL_GIT=shallow BRANCH=current EXPERT=yes KERNEL_BTF=no kernel BOARD=bananapicm4io The DTS files are one of the first things to be compiled, so once you see them finish, hit CTRL+C to cancel the build and then grab the DTB file from the source dir: cache/sources/linux-kernel-worktree/6.12__meson64__arm64/arch/arm64/boot/dts/amlogic/ That is the easiest way I can think of doing what you want to achieve. Here is an updated PATCH and pr-ecompiled DTB. NOTE: There are different variants of the X96-AIR. I have two. One that uses Qualcomm for wireless and another that is Realtek. Each variant requires a different DTS for it to function properly. This patch is for the Realtek variant. x96-air-gbit-spdif-jack-i2c1-openvfd-jl2xx1-bt-support.patch meson-sm1-x96-air-gbit.dtb

Ah gotcha.

Not sure what you mean by outdated? Gets updated often or when needed; https://github.com/jwrdegoede/rtl8189ES_linux/tree/rtl8189fs

If the u-boot on the unit supports USB Boot, yes. GXL:BL1:9ac50e:bb16dc;FEAT:ADFD318C:0;POC:3;RCY:0;EMMC:800;NAND:81;SD:800;USB:8;LOOP:1;EMMC:800;NAND:81;SD:800;USB:8;LOOP:2;EMMC:800;NAND:81;SD:800;USB:8;LOOP:3;EMMC:0;READ:0;0.0;CHK:0; The above looks like USB Mode. This Mode is for flashing vendor or custom imgs to the unit via USB. This is for recovery.

https://github.com/armbian/build/pull/8191

@ScoreABSM can I see the dmesg?

There are big differences between the two revisions. The biggest one is, one is using Wifi/BT over USB and the other SDIO, which requires the sdio overlay. The reason for BT not working on Armbian, I have yet to figure out. Like I said before, it works on (my personal) a more minimal build; Debian GNU/Linux trixie/sid 6.12.26 #1 Sun May 4 17:50:23 EDT 2025 aarch64 BananaPi BPI-M4-Zero v2 ── DISK Filesystem Size Used Avail Use% Mounted on /dev/mmcblk2p2 29G 2.8G 26G 10% / /dev/mmcblk2p1 466M 74M 363M 17% /boot ── NETWORK Hostname: bananapim4zero Wireless: wlan0 UP 10.0.0.XX Bluetooth: hci0 AC:6A:A3:3B:D9:D6 ── SYSTEM Processor: Cortex-A53 @ 1416MHz 52°C Frequency: 1416MHz Online: 0-3 Governor: performance Memory: 3.8G 199M Entropy: 256 Uptime: 15:13:05 up 4 min, 1 user, load average: 0.01, 0.06, 0. It is hard for me to determine the reasons BT doesn't work, as the patching is very extensive. If it is even the patching? And yes I include the BT node in the overlay; https://github.com/armbian/build/blob/main/patch/kernel/archive/sunxi-6.12/patches.armbian/Add-BananaPi-BPI-M4-Zero-overlays.patch#L267 As for HDMI audio and GPU, the PR I posted a link to corrects this. In future releases and rolling (give it a day) it should now work. Although I think I need to now add my changes to the 6.14.y branch? I'll check.