Need help to install build custom kernel module

[Praveenkumar Jangala]

Hi ,

 My laptop is having relatek 8822ce hardware which is not working with pie-x86 iso. So, I checked out pie-x86 branch, also checkout code dkms module of respective hardware from github and copied to kernel/drivers/net/wireless/realtek folder. Modified KConfig and Makefile. But when the kernel is built using "make kernel". KO object is not available in $OUT/obj/kernel/drivers/net/wireless/realtek folder . Even , i didn't get any compilations errors. Can anyone suggest what I am doing wrong?

 

Thanks & Regards

PRAVEENKUMAR JANGALA

Mobile +91-9600666781

[Chih-Wei Huang]

Praveenkumar Jangala <pravee...@gmail.com> 於 2020年11月28日 週六 下午7:22寫道：

> My laptop is having relatek 8822ce hardware which is not working with pie-x86 iso. So, I checked out pie-x86 branch, also checkout code dkms module of respective hardware from github and copied to kernel/drivers/net/wireless/realtek folder. Modified KConfig and Makefile. But when the kernel is built using "make kernel". KO object is not available in $OUT/obj/kernel/drivers/net/wireless/realtek folder . Even , i didn't get any compilations errors. Can anyone suggest what I am doing wrong?

Have you enabled its config?
If not, add it to kernel/arch/x86/configs/android-x86*_defconfig


--
Chih-Wei
Android-x86 project
http://www.android-x86.org

[Praveenkumar Jangala]

I am sorry Chih-Wei , I  do not understand what line I should add to that config file. This is the first time for me to peep into system software. Please teach me in that perspective

#Added this line to to android-x86_64_defconfig under the line CONFIG_WLAN_VENDOR_REALTEK=y . I do not know what config I should make in order to make this work 

CONFIG_RTW88=m

 

#Added below line to net/wireless/realtek/KConfig

source "drivers/net/wireless/realtek/rtw88/Kconfig"

#Added below line to net/wireless/realtek/Makefile

obj-$(CONFIG_RTLW88) += rtw88/

FInally, added rtw88 folder from  https://github.com/lwfinger/rtw88 . This folder is missing KConfig. So i searched in internet and added KConfig file with below content

# SPDX-License-Identifier: GPL-2.0-only

menuconfig RTW88

tristate "Realtek 802.11ac wireless chips support"

depends on CFG80211

help

  This module adds support for mac80211-based wireless drivers that

  enables Realtek IEEE 802.11ac wireless chipsets.

  If you choose to build a module, it'll be called rtw88.

if RTW88

config RTW88_CORE

tristate

config RTW88_PCI

tristate

config RTW88_8822BE

bool "Realtek 8822BE PCI wireless network adapter"

depends on PCI

select RTW88_CORE

select RTW88_PCI

help

  Select this option will enable support for 8822BE chipset

  802.11ac PCIe wireless network adapter

config RTW88_8822CE

bool "Realtek 8822CE PCI wireless network adapter"

depends on PCI

select RTW88_CORE

select RTW88_PCI

help

  Select this option will enable support for 8822CE chipset

  802.11ac PCIe wireless network adapter

config RTW88_DEBUG

bool "Realtek rtw88 debug support"

depends on RTW88_CORE

help

  Enable debug support

  If unsure, say Y to simplify debug problems

config RTW88_DEBUGFS

bool "Realtek rtw88 debugfs support"

depends on RTW88_CORE

help

  Enable debug support

  If unsure, say Y to simplify debug problems

endif

When the build is completed build shows successful, but the module is not present. Can you please tell me what I am missing in these steps.

 

 

Thanks & Regards

PRAVEENKUMAR JANGALA

Mobile +91-9600666781

--
You received this message because you are subscribed to the Google Groups "Android-x86" group.
To unsubscribe from this group and stop receiving emails from it, send an email to android-x86...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/android-x86/CAKc24n3gbFbmdvhJguCZn0QvBzvyrO0%2BiB2FygvrV-44dKjGTw%40mail.gmail.com.

[Huy Minh Bui]

For lwfinger's rtw88 you just need to clone his repo into external/kernel/drivers and then add this Android.mk file

https://git.osdn.net/view?p=android-x86/external-kernel-drivers.git;a=blob;f=rtl8821ce/Android.mk;h=434e8510873b30aaf73ea888b015c313b30f66a7;hb=refs/heads/q-x86

Then try to compile

Vào lúc 13:54:37 UTC+7 ngày Chủ Nhật, 29 tháng 11, 2020, pravee...@gmail.com đã viết:

[Praveenkumar Jangala]

Thank You Huy Minh Bui. I am able to compile and build but, when ISO is generated it is not present in drivers 

 

 

Thanks & Regards

PRAVEENKUMAR JANGALA

Mobile +91-9600666781

To view this discussion on the web visit https://groups.google.com/d/msgid/android-x86/dd01d32f-b692-47c9-a35b-904878c994b6n%40googlegroups.com.

[Huy Minh Bui]

Check if you actually compile the module in /system/lib/modules/<your_kernel_name>/extra/rtw88*

If not, then there's something wrong while you compile. If it's present, it mean the problem is on lwfinger's driver

Vào lúc 14:59:35 UTC+7 ngày Thứ Hai, 30 tháng 11, 2020, pravee...@gmail.com đã viết:

[crw]

rtw88 is included in kernel 5.8+

use kernel 5.8 or newer, it has support for a lot of realtek chipsets.

[Praveenkumar Jangala]

Thank you for your reply . I don't think it is easy to change the kernel for a beginner like me. Thank you for your suggestion, android-x86 team is already porting Q-x86 branch with kernel version 5+, I think.

 

Hi Huy Minh Bui,

 I have attached "make kernel" log which is successful and log shows rtw88 drivers compiled and Kernel Objects are generated. But when i give ISO generation command, ISO is generated successfully but it is not having generated KO files. I have opened ISO file with 7zip and checked kernel/drivers inside system.sfs. If I am looking in the wrong location can you please guide me. 

 

Installing additional kernel module rtw88

make: Entering directory '/media/praveen/EXT4/android-x86/pie-branch/kernel'

make[1]: Entering directory '/media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kernel'

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8723d.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8723de.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8821c.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8821ce.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8822b.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8822be.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8822c.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_8822ce.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_core.ko

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/rtw88/rtw_pci.ko

  DEPMOD  4.19.122-android-x86_64-g464351ddb855-dirty

make[1]: Leaving directory '/media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kernel'

make: Leaving directory '/media/praveen/EXT4/android-x86/pie-branch/kernel'

Installing additional kernel module wl

make: Entering directory '/media/praveen/EXT4/android-x86/pie-branch/kernel'

make[1]: Entering directory '/media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kernel'

  INSTALL /media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kmodule/wl/wl.ko

  DEPMOD  4.19.122-android-x86_64-g464351ddb855-dirty

make[1]: Leaving directory '/media/praveen/EXT4/android-x86/pie-branch/out/target/product/x86_64/obj/kernel'

make: Leaving directory '/media/praveen/EXT4/android-x86/pie-branch/kernel'

#### build completed successfully (10:46 (mm:ss)) ####

Thanks & Regards

PRAVEENKUMAR JANGALA

Mobile +91-9600666781

To view this discussion on the web visit https://groups.google.com/d/msgid/android-x86/28212f0e-57c7-4c72-a293-aba9e2ff935an%40googlegroups.com.

[crw]

If its hard for you to change kernel,

Download a bliss OS 12 iso file, bliss os 12 has kernel 5.8

and open it with 7-zip, take the /system/lib/modules and /system/lib/firmware and the kernel file in root directory,  put those two folders and the kernel file in android x86 9.0 iso, you may delete the old modules
Then you have a android 9 iso with kernel 5.8 from bliss os.

[Praveenkumar Jangala]

Thank you for your reply. This seems very simple and let me give a try.

To view this discussion on the web visit https://groups.google.com/d/msgid/android-x86/b047452f-9c62-4022-be1a-5fbbe571ed39n%40googlegroups.com.

[Praveenkumar Jangala]

Hi ,

        i am  not able to modify system.img it says read-only. On other side, i have found my drivers in the build , Now i need to check why its not loading

 

 

Thanks & Regards

PRAVEENKUMAR JANGALA

Mobile +91-9600666781