[Completed] Modifying stock kernel - XDA Assist

Good afternoon. I appoligise for the noob question but is there a way I can edit (I want to add overclock to a kernel) an already made (compiled?) kernel instead of having to completly build the kernel from source? For example, is there a way I can unpack a boot.img and modify the kernel, repack the boot image, and flash it instead of (in my case) going to Sony Developer World and compiling an AOSP kernel from source, I can just modify the frequencies of the CPU in the kernel the phone is currently running and reflash it? Sorry for the complicated and stupid question, i'm very new to kernel modifying... Thanks for any responses and/or help. ^^

Hi
Thank you for using XDA Assist.
There's an explanation in XDA University to have a few features like OC: http://xda-university.com/as-a-developer/adding-features-to-your-kernel
Good luck.

Related

Flash kernel info needed

Hi experts,
I am currently using LG P500 with stock rom & kernel. I have never rooted rom before this. I have read somewhere from useful thread from this forum like here but am still not so sure and wondering if any problem will effect to the stock rom if I would like to flash kernel on my phone.
Most of the time I depend on my mobile phone such as alarm clock so just worried anything happen to the rom will cause me troublesome. ^^; I might flash rom in future but not now. So am interested about flashing kernel since people said that flash kernel will save battery life as well as overclock cpu. It would be glad if someone could explain to me or sharing link with great info.
Thanks a lot.
regards
android newbie
can i ask which software you are using?
you have to be careful when flashing kernels as some kernels may not be compatible with your specific software.
I would search for specific kernels for your software and if you have root, then make sure you have a backup kernel for the one you are about to flash and if any problems arise you can flash it back.
I use Kernel Update Utility 0.9 to flash different kernels to my device so maybe you can look into that once you have done your research

[Q] How to add SetCPU support to custom kernel?

Hi guys, first of all, I hope this is the right place to ask, if not then please move this thread
I want to compile a custom kernel for my device Spice Mi310. I want to know how I can add SetCPU support to my kernel (2.6.32.9)? I've seen many people here on xda enabling SetCPU support for their kernels, unfortunately my device isn't that popular so no one has an OC kernel for this device. I've compiled dozens of kernels for Linux PC's but I'm new to android kernel compiling
If any of the kernel hackers here on xda can help, it would be much appreciated
bump....no one?

Kernel questions

Hello everybody,
I'm looking for a good kernel for an ICS rom (I'm still on stock 4.0.4).
I have been looking at [Kernel][S4 ICS][10 DEC][SENSE] Beastmode BRICKED Ville [Linaro -O3][3.0.56].
I have a few questions about that kernel:
1) does it support init.d scripts?
2) does it improve multitasking in any way? Other kernels use zRam for this purpose, but I don't understand if this kernel does that too. Has "Google Snappy Compression" (mentioned in the features) something to do with this?
3) will I need to use a 3rd party app (like kerneltuner) in order to undervolt? And will the undervolt stick when shutting down the phone?
4) will I be able to go back to the stock kernel by restoring a backup with TWRP?
Those features are implemented in Fusion kernel, although it's no longer mantained...
Thank you in advance, it's my first time studying the kernel subject, sorry for bothering.

[Q] Stock Kernel - Add frequencies and/or governors

Hi community:
I wanted to know if there's some way to edit frequency values on the stock kernel and hopefully to add new governors. I tried some custom kernels but right now I want to stick to the stock kernel because I read that it has a proprietary driver that manages CPU (MPdecision I think it is).
I would be willing to compile, test and stuff on my device but if someone knows an easier trick (build prop or stuff) I'll gladly appreciate it.
Also if there's a stock-based customized kernel out there with such capabilities (I searched but all are AOSP based) I would try it.
ZareliMan said:
Hi community:
I wanted to know if there's some way to edit frequency values on the stock kernel and hopefully to add new governors. I tried some custom kernels but right now I want to stick to the stock kernel because I read that it has a proprietary driver that manages CPU (MPdecision I think it is).
I would be willing to compile, test and stuff on my device but if someone knows an easier trick (build prop or stuff) I'll gladly appreciate it.
Also if there's a stock-based customized kernel out there with such capabilities (I searched but all are AOSP based) I would try it.
Click to expand...
Click to collapse
i don't know if it works but try using engineering mode..
This app was mentioned on XDA news today - claims to let you tweak CPU: (no mention of it requiring a custom kernel)
http://forum.xda-developers.com/android/apps-games/app-battery-care-beta-tester-battery-t2890061

[Q] how can i add the OC support on stock kernel?

Hello guys
I want to know how to add the OC support on OnePlus One stock kernel?
there is any guide which can help me?
thanks
OC support cannot be added. You'll have to flash a custom kernel.
ok but if i want to make a custom kernel, there is a detailed guide? coz i don't find it
erfan komidjani said:
ok but if i want to make a custom kernel, there is a detailed guide? coz i don't find it
Click to expand...
Click to collapse
There are countless guides on how to compile a custom kernel right here on XDA, you're not looking hard enough.

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