SKYWORTH E900V22C, WiFi/RTL88x2cs not recognized

[rodomb]

**Device Information: SKYWORTH E900V22C/KINHANK X2 PRO

• SOC: S905L3a
• Model: SKYWORTH E900V22C/KINHANK X2 PRO

**Armbian Version: Armbian OS 25.02.0 bookworm aarch64

• Kernel Version: 6.6.67-merry-christmas
• Release: bookworm

**Describe the bug:
I installed armbian on game console KINHANK X2 PRO. I used image Armbian_25.02.0_amlogic_s905l3a_bookworm_6.6.67_server_2024.12.24.img.gz.
Ethernet is working but Wifi not. I would like to try add WiFi. Earlier on android I noted that is used rtl88x2cs card. So I did:

1. git clone https://github.com/jethome-ru/rtl88x2cs.git
2. cd rtl88x2cs
3. make
   But I received:
   make ARCH=aarch64 CROSS_COMPILE= -C /lib/modules/6.6.67-merry-christmas/build M=/rtl88x2cs modules
   make[1]: Entering directory '/usr/src/linux-headers-6.6.67-merry-christmas'
   /usr/src/linux-headers-6.6.67-merry-christmas/Makefile:768: arch/aarch64/Makefile: No such file or directory
   make[2]: *** No rule to make target 'arch/aarch64/Makefile'. Stop.
   make[1]: *** [Makefile:234: __sub-make] Error 2
   make[1]: Leaving directory '/usr/src/linux-headers-6.6.67-merry-christmas'
   make: *** [Makefile:2416: modules] Error 2

Can you point out me what to do??

[rodomb]

OK so I did not waited and made some changes.
Problem is with gcc version (point 4) but maybe is not so important??
Finally in point 6 anyway I have error.
Now my procedure in steps looks like below:

1. git clone https://github.com/jethome-ru/rtl88x2cs.git

2. cd rtl88x2cs

3. root@armbian:/rtl88x2cs# sed -i 's/$(MAKE) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C $(KSRC) M=$(shell pwd)/$(MAKE) -j4 -C $(KSRC) M=$(shell pwd)/g' Makefile
   root@armbian:/rtl88x2cs# sed -i 's/$(CROSS_COMPILE)strip $(MODULE_NAME).ko --strip-unneeded/strip $(MODULE_NAME).ko --strip-unneeded/g' Makefile

4. root@armbian:/rtl88x2cs# make
   at the beginning I received:
   warning: the compiler differs from the one used to build the kernel
   The kernel was built by: aarch64-none-elf-gcc (Arm GNU Toolchain 14.2.Rel1 (Build arm-14.52)) 14.2.1 20241119
   You are using: gcc (Debian 12.2.0-14) 12.2.0
   .
   .
   .
   at the end I received:
   Skipping BTF generation for /rtl88x2cs/88x2cs.ko due to unavailability of vmlinux
   make[1]: Leaving directory '/usr/src/linux-headers-6.6.67-merry-christmas'

5. root@armbian:/rtl88x2cs# make install
   install -p -m 644 88x2cs.ko /lib/modules/6.6.67-merry-christmas/kernel/drivers/net/wireless/
   /sbin/depmod -a 6.6.67-merry-christmas

6. root@armbian:/rtl88x2cs#sudo insmod 88x2cs.ko
   insmod: ERROR: could not insert module 88x2cs.ko: Unknown symbol in module

[adeepn]

https://github.com/ophub/amlogic-s9xxx-armbian/blob/main/documents/README.md#93-how-to-customize-compilation-of-driver-modules

[rodomb]

Thx adeepn for help.
I did everything like in link (adjusted to my kernel version, paths, etc.) and finally I did not have any errors. Finally last entry after dmesg was "loading out-of-tree module taints kernel" but I suppose that this is only warning/information.

But anyway I do not see any wireless interface. Maybe information that it is rtl88x2cs was fake like also about chipset version in this console.
So I do not have idea what to do and have to give up. I will not have wifi in this box.

Maybe I have to start from DTB file.

@ophub is wifi included in meson-g12a-s905l3a-e900v22c.dtb file??