not

Compatibility





Important: This kernel is only meant to be compatible with official OnePlus OOS and nothing else.

So when the kernel does not run on custom rom XYZ, do not even bother me with it or ask hundred times in the thread for compatibility.

I could not care less about it !!

Important notes

It is not supposed to be compatible to LineageOS, CM, HydrogenOS etc.



Also note: You have to use Boeffla-Config app which I provide on my homepage to tweak the kernel. 3rd party apps will not be able to unleash the full power of the kernel.



Support

Change logs

Features

Support of anykernel concept (only latest kernels) - flash stock kernel before flashing Boeffla

Full integration with Boeffla-Config V2 (you need at least version 2.2.42 or higher !!!) configuration app

(get it from http://www.boeffla.de) to configure all kernel settings

The two CPUs (big and little cpu) can be configured completely separate in terms of min/max frequencies, governors and hotplug profiles

Additional governors: Impulse, zzmoove, elementalx, conservative, ondemand



Additional schedulers: fiops, bfq, sio und zen

Hotplugging done by using stock core_ctl method

Many Hotplug tweak profiles (default are: little CPU always runs on 4 cores, big CPU runs on between 2 and 4 cores based on load)

Notification LED control (fading, speed, brightness)

Boeffla-Sound engine (Headphones volume configurable only)

Dynamic FSync (activated if screen on, deactived if screen off), configurable

Input boost frequencies and duration configurable, input boost switch

No CPU and GPU overclocking yet

No CPU and GPU voltage interface (will probably never come to save me support work)

GPU underclocking to 27 MHz possible

msm_adreno_tz and simple_ondemand tweaked to better utilize low frequencies



Show CPU frequency usage per CPU and frequency in Boeffla-Config

Show GPU frequency usage per frequency in Boeffla-Config

KCal V2 Color control

Display backlight limits configurable (to avoid display brightness gets too low in some situations)

Display backlight dimmer

Swipe2wake gestures

Swipe2sleep gestures



Boeffla generic wakelock blocker V1.1.0 (documentation)

Vibration control

Haptic feedback control for gestures



BCL (battery current limit) driver switchable (default is on)



SD card read ahead buffer configurable (default increased to 1024 kB)

Ext4 File system tweaks (default to on, can be disabled)

Thermal engine profiles (in system Tweaks section)

Kernel logger (dmesg) configurable

Boeffla charge analysis (display of charger type and charge current in Boeffla-Config app in real time)

Boeffla touchkey LED control (LEDs fully off, LED on screen touch, configurable duration)

USB charge rate bumped up to 900 mA

CIFS support (module, do not mount inside /data, if you rooted with Chainfire SuperSu, make sure you uncheck the namespace separation in SuperSu app)

NFS support (module)

NTFS support (module)

XBox support (module)

OTG-Ethernet support (module)

TCP Congestion changed to Westwood

Many additional TCP congestion algorithms activated to be used

init.d support (in /system/etc/init.d - set correct permissions!)

Automatic EFS backup

Integrated full busybox 1.27.2 (own compilation)

Kernel initialisation log file (with history of 3 log files)

Emergency reset script automatically placed into /boeffla-kernel-data folder of your internal memory

Google gcc 4.9 toolchain (64 bit) used for best stability

Always using latest Oxygen OS Initramfs

Device tree build from kernel sources for future options on frequencies and voltages

Always based on latest Oxygen OS kernel sources (https://github.com/OnePlusOSS/androi...neplus_msm8994)



Download



For all information and downloads (stable AND testing versions), visit the Boeffla-Kernel homepage:

www.boeffla.de





History and design targets



Basically I created my first Boeffla-Kernel in 2012 as there was no kernel for the Samsung Galaxy S3 around that had exactly the mix of functionalities that I wanted. I wanted to have full flexibility in undervolting and charge rates for instance, but did not like the sharpness and/or brightness tweaks many kernels have implemented as per default.



Hence, I began to create my own kernel after a while, adding all the features I like. This is the result of my work, which in the end I decided to share with you. I hope you like it as much as I do.



The objective of this kernel is to have a kernel for daily use. It does not aim for best battery life, or best smoothness or best benchmark scores. Also it does not aim to have the broadest feature set available everywhere.

It aims more for a good mix of all, not sacrificing stability and functionality in the end.

And - most important: It aims to stay quite close to stock !!!



These design targets are also valid for the OnePlus kernel here!!!



This said, I will definitely NEVER implement:



things I do personally not need

things I do not like

things that are in any way dangerous

anything which is highly experimental

f2fs - it is known to cause various issues and compatibility problems

a CAF based kernel

anykernel method to use the ramdisk of the installed rom

anything that requires upstreaming of kernel parts to a higher kernel major version

So do not even ask for it if it falls into the listed categories. Everything else I am happy to check and decide.



And: I do not really care about benchmark numbers, they say almost nothing as long as something is not completely wrong. Important for me is the feel-good factor.

I am also not interested in gaming at all, so never expect a gamer kernel. It will just not happen...





Compatibility



To reiterate it again: Flash the kernel only if you are running a compatible rom !!!





Configuration of the kernel







You need at least version 2.2.03 or higher for the OnePlus Two Boeffla Kernels.



Donation



If you like my work, feel free to donate: Donation-Link



If you donate at least 2,49 EUR (to be in line with the donation app prices on Google Play store), you will receive a personal donation code which unlocks some nice little comfort functions in Boeffla-Config V2 on top.





Source code



All sources can be found in my Github repository: http://github.com/andip71





Credits to developers



Of course, I had never been able to create all that by my own. So I want to give credits to the really good developers around, that have given me all the inspiration and from which I cherry picked lots of the implemented functionalities:



* ZaneZam

* Ak

* Yank555

* Hardcore

* Chainfire

* Netarchy

* Gokhanmoral

* Simone201

* Entropy512

* Faux

* Savoca



... I just hope I did not forget someone. If so, please let me know and I will add you of course.

Thanks to all of you for your great work !!!





Special thanks



Also I want to thank xda user @magnamentis for the ongoing testing to iron out the stability issues of the first alphas. He was doing that always taking the risk to "ffy" his brand new OP2.



Special thanks as well to @ZaneZam to pinpoint the issue during my absence as I was on business trips most of the time in the past weeks.



Disclaimer



*** As always - Flash on our own risk! ***



Make sure you flash the correct version depending on your firmware version!



I can and will not take any responsibility for bricked phones or lost data.



It is generally recommended to run a complete Nandroid backup in your custom recovery and safely store your personal data before you flash a new kernel.





Cheers and enjoy

Andi