Tvheadend

So I decided to get a Black Friday deal/new M.2 SSD and replace/install new system on my 9020M with
- 3 x DVB-T2 (PCTV 290e x 2, 292e x 1)
- 1 x DVB-S2X (TBS5520SE Multi-standard Universal TV Tuner USB Box)

I have installed Debian 11 (headless):

uname -a
Linux OptiPlex9020M 5.10.0-9-amd64 #1 SMP Debian 5.10.70-1 (2021-09-30) x86_64 GNU/Linux

Got my PCTV sticks working:

cd /lib/firmware
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-D60/6.0.1/dvb-demod-si2168-d60-01.fw
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-B40/4.0.25/dvb-demod-si2168-b40-01.fw
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-A30/3f2bc2c63285ef9323cce8689ef8a6cb/dvb-demod-si2168-a30-01.fw
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/Si2168-A20/32e06713b33915f674bfb2c209beaea5/dvb-demod-si2168-a20-01.fw
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/dvb-demod-si2168-01.fw
sudo wget http://palosaari.fi/linux/v4l-dvb/firmware/Si2168/dvb-demod-si2168-02.fw

But the TBS Open source Linux Driver is pain in the back side to get working.
After installing it, all the tuner have gone missing Here is what I did
as per instructions from their website:
https://github.com/tbsdtv/linux_media/wiki

sudo -i
apt install linux-headers-$(uname -r)
apt install libproc-processtable-perl patchutils gcc build-essential git libdigest-sha-perl build-essential subversion mercurial openssl gettext libssl-dev screen libv4l-dev -y
mkdir tbsdriver; cd tbsdriver
git clone https://github.com/tbsdtv/media_build.git
git clone --depth=1 https://github.com/tbsdtv/linux_media.git -b latest ./media
cd media_build
make dir DIR=../media
make distclean
lscpu | grep -E '^Thread|^Core|^Socket|^CPU\('
make -j4

During compiling error come up:

No file to patch.  Skipping patch.
1 out of 1 hunk ignored
make[2]: *** [Makefile:133: apply_patches] Error 1
make[2]: Leaving directory '/root/tbsdriver/media_build/linux'
Preparing to compile for kernel version 5.10.0

***WARNING:*** You do not have the full kernel sources installed.
This does not prevent you from building the v4l-dvb tree if you have the
kernel headers, but the full kernel source may be required in order to use
make menuconfig / xconfig / qconfig.

If you are experiencing problems building the v4l-dvb tree, please try
building against a vanilla kernel before reporting a bug.

Vanilla kernels are available at http://kernel.org.
On most distros, this will compile a newly downloaded kernel:

cp /boot/config-`uname -r` <your kernel dir>/.config
cd <your kernel dir>
make all modules_install install

Please see your distro's web site for instructions to build a new kernel.

WARNING: This is the V4L/DVB backport tree, with experimental drivers
     backported to run on legacy kernels from the development tree at:
        http://git.linuxtv.org/media-tree.git.
     It is generally safe to use it for testing a new driver or
     feature, but its usage on production environments is risky.
     Don't use it in production. You've been warned.
File not found: ../linux/drivers/media/Kconfig at ./scripts/make_kconfig.pl line 302.
No kernel files. You need to run "make download untar" or "make dir DIR=<your_git_source_dir>" first!
exit 1
make[1]: *** [Makefile:6: def] Error 1
make[1]: Leaving directory '/root/tbsdriver/media_build/v4l'
make: *** [Makefile:26: all] Error 2

So I have run as requested:

make download untar
make -j4

It then finished compiling with the following

        v4l2-fwnode.ko v4l2-dv-timings.ko v4l2-mem2mem.ko 
        v4l2-async.ko videodev.ko videobuf-core.ko 
        videobuf-dma-contig.ko videobuf-dma-sg.ko 
    pci/pt1/: earth-pt1.ko 
    pci/saa716x/: saa716x_hybrid.ko saa716x_tbs-dvb.ko saa716x_core.ko 
    usb/pvrusb2/: pvrusb2.ko 
    pci/tbsci/: tbs_pcie-ci.ko 
    common/v4l2-tpg/: v4l2-tpg.ko 
    usb/au0828/: au0828.ko 
    usb/ttusb-dec/: ttusb_dec.ko ttusbdecfe.ko 
    i2c/m5mols/: m5mols.ko 
    dvb-frontends/cxd2880/: cxd2880.ko 
    common/saa7146/: saa7146.ko saa7146_vv.ko 
    usb/hackrf/: hackrf.ko 
    platform/atmel/: atmel-isc-base.ko 
    pci/meye/: meye.ko 
/sbin/depmod -a 5.10.0-9-amd64 
make -C firmware install
make[2]: Entering directory '/root/tbsdriver/media_build/v4l/firmware'
Installing firmwares at /lib/firmware: 
make[2]: Leaving directory '/root/tbsdriver/media_build/v4l/firmware'
make[1]: Leaving directory '/root/tbsdriver/media_build/v4l'

So I installed it:

make install

Then install “firmware” and after reboot all the tuners are missing .... :(

wget http://www.tbsdtv.com/download/document/linux/tbs-tuner-firmwares_v1.0.tar.bz2
tar jxvf tbs-tuner-firmwares_v1.0.tar.bz2 -C /lib/firmware/
reboot

There is no other kernels installed on my system:

~$ apt-mark showauto 'linux-image-.*'
linux-image-5.10.0-9-amd64

I have tried below, but still no luck, all the DVB tuners are missing:

rm -rf /lib/modules/`uname -r`/kernel/drivers/media/*
cd ~/tbsdriver/media_build
make install
reboot

# cat ~/tbsdriver/media_build/linux/.patches_applied
#5.10.0-9-amd64
v5.10_vb2_dma_buf_map.patch
v5.11_isa.patch
v5.12_uvc.patch
v5.14_bus_void_return.patch
rc-cec.patch
ccs.patch
drx39xxj.patch
debug.patch
pr_fmt.patch
api_version.patch

Any advised would be greatly apprenticed.
Thank you.