[Fascinate Android Development] comradesven:
KGB Kernel

A Kernel for Gingerbread

Last updated: 1/16/2012

Standard disclaimer: I did this for myself more than anything. If this kernel causes you to sleep through an appointment or kills your firstborn or whatever, them's the breaks.

By using this kernel you understand that it comes with no warranty whatsoever, and that flashing anything to your phone invalidates the warranty on that as well.

For Fascinate, Mesmerize, and Showcase

and ROMs based on EH09, EI20, and EH03
​

TKSGB has been renamed to KGB Kernel, because it's a kernel for Gingerbread (for the SCH-I500, and TouchWiz ROMs). I decided that posting a new thread would let me rename the kernel with the Most Imaginative Name Ever®, close the old thread for getting too long, and rewrite the first post all at the same time.

FEATURES

CUSTOM SETTINGS APP

I wrote an app to replace the command-line scripts that controlled some of the settings in the kernel. It will auto-install upon boot and may even work with some features of the other TWGB kernels out there.​

VOODOO

Voodoo Lagfix (with autoconvert) and Voodoo Sound v10. Compatible with Voodoo Control app.​

OVERCLOCKING/UNDERVOLTING

Supported up to to 1.7GHz with Pimp My CPU/Voltage Control.​

TWEAKED CPU GOVERNORS AND I/O SCHEDULERS

ondemand is the default and recommended CPU governor. interactive, smartassv2, and tweaked conservative governors are included. ondemand and interactive are renamed from ondemandX and interactiveX, updating what was already there.

deadline is the default and recommended I/O scheduler. sio, vr, and bfq are included. deadline, sio, and vr have been tweaked for flash memory.​

NO HOTSPOT MONITORING

The Wi-Fi driver is ported from i9000, and has updates that some have said make it more stable than the driver included in the stock kernels. Tethering with Wireless Tether for Root Users and other apps is supported.

Using Verizon's built-in 3G Mobile Hotspot is never recommended.​

THIRD-PARTY BATTERY SUPPORT

Batteries for other Samsung Galaxy S models, off-brand batteries, and third-party extended batteries are all supported. Genuine Samsung i9000 batteries and third-party batteries that live up to the 1500mah ratings can now be had for well under $10.​

USER-ADJUSTABLE TRICKLE CHARGE

Credit for this feature goes to djp952. There are still a couple of reasons why this is considered experimental, but it will definitely get rid of Gingerbread battery drop if you are experiencing it. I extended it so that it can be enabled from userspace, so that one version of the kernel can accommodate people who want to use this feature and people who don't. Turning trickle charge on can be easily done with the included KGB App.​

IN-CALL VOLUME BOOST

User-adjustable in-call volume boost settings can be changed by running the included KGB App.​

IN-CALL MIC GAIN

User-adjustable in-call mic gain settings can be changed by running the included KGB App.​

AOSP-STYLE COLOR TUNING

Voodoo Color hasn't been working right for anybody and was causing greenish blotchy artifacts on videos, so AOSP-style color tuning has been implemented and can be adjusted by running the included KGB App.​

TOUCHKEY BACKLIGHT TIMEOUT

Custom touchkey backlight timeouts is another AOSP feature ported to KGB Kernel, and can be adjusted by running the included KGB App.​

BACKLIGHT NOTIFICATIONS

neldar's BLN v9 is included, and can be enabled with BLN Control app or Blinky.​

ZRAM

At the cost of increased CPU usage, zram effectively gives you more RAM by setting aside a portion of it and compressing what gets stored there.

zram can be enabled by running the included KGB App.​

DOCK AUDIO SUPPORT

Apparently this is working to the satisfaction of those who actually have docks (I don't).​

LED FLASHLIGHT

Didn't work with stock kernels, but works now. Strobe is not supported.​

BOOT ANIMATIONS

Automatically chooses between Samsung-style boot animations and AOSP-style (zip) boot animations.​

CIFS, TUN, UTF8

All built into the kernel, with no need to load any modules​

LOW-LEVEL TWEAKS AND UPDATES

Various autogroups, RCU updates, jhash3, ext4 updates, and memory management updates are included. So are patches for the ARM SoC by ARM and Samsung and a number of other patches to the Linux kernel. In sum these clean up the kernel source code and help interactivity.
​

OPEN SORES

KGB Kernel source on Github: I don't know C. I kang everything.

Don't you dare think that you have to ask for my permission before using my source however you like. :D

It appears that I have finally gotten the .gitignores correct and the git repo will build a working kernel! Let's not dwell on how shameful it is that my repo didn't even build until two months after my first release. I have updated the xda wiki article on building KGB Kernel. If someone tries it out let me know how it goes!​

THANKS

Unwitting contributors

imoseyon, ccampos784, djp952, existz, jt1134, Tk-Glitch, Efpophis, SirGatez, erasmux, supercurio, renaudallard, zachariasmaladroit, xcaliburinhand, a bunch of people who made it into the mainline Linux tree.

I've tried to credit these people and others as best I can in my git repo's commit messages, but some of these people are on here because I used their code as a model for various things.​

Others

People from IRC/people who helped the community/testers/teamsbrissenmod members, including adrynalyne, imnuts, times_infinity, navenedrob, nemesis2all, nitsuj17, chopperthedog, ACLakey, veteranmina, brickbeats, etc.

Everyone who has ever tried my kernel!​

​