The kernel is a central component of most computer operating systems. It acts as bridge between applications and the hardware and also manages the systems's resources.

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UVC compliant USB camera interface with non v4L2 compliant Android devices [on hold]

AFAIK, If I want to connect An UVC compliant USB webcamera to android device there must be UVC i.e USB Video Class driver and V4L2(Video for Linux2) is needed, If there is UVC but not V4L2 in kernel ...
0
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26 views

How to boost voltage of headphone jack from kernel?

I want to increase my headphone jack voltage from kernel . How I can find the sound folder and sound module files in android kernel ? I used viper and other softwares , they are not powerful as ...
1
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0answers
26 views

Can't sideload some apps on some kernels (idlekernel, Cyanogenmod kernel)

I always wanted to use idlekernel but once I install it, the apps would disappear (also happened on Cyanogenmod kernel). Usually the apps that it doesn't want me to sideload are the ones that gets ...
0
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0answers
27 views

Unpack and Pack the Ramdisk.img

I want to make some change to the ramdisk.img file and use that to bring up the emulator. I unpacked the ramdisk.img with the following command: gunzip -c ../ramdisk.img | cpio -i Before making any ...
1
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0answers
16 views

Using android's BLOBs in GNU/Linux environment

I've successfully BOOTED to debian. I installed a regular debian file system under /data/debian with debootstrap, made a tiny init file in initcpio to tell it to switch_root to /data/debian and ...
0
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0answers
18 views

Extract boot.img from Emulator

I want to extract the boot.img from the android emulator. But I am not able to find it. I took the adb shell and read the proc/mtd file. This is content of the proc/mtd file. root@generic:/ # cat ...
0
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0answers
29 views

Galaxy S2 stuck at boot. Please help

Yesterday I flashed CM 12.1 on my Galaxy S2 gt-i9100. I rooted the device by flashing Siyah kernel via Odin. Then using cwm based siyah recovery I did the factory reset and wipe cache & dalvik and ...
0
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0answers
18 views

How to slow down boot on Samsung Galaxy S6 Edge

I made a custom boot animation in .qmg for my Galaxy but the system boots too rapidly, I try to slow it down. I searched in all the boot files how to do that but I did not found anything... One file ...
0
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49 views

How can I enable/add USB OTG support to my rooted and Cyanogenmod installed Huewei Honor 4x?

I have tried stickmount but did not succeed in getting otg mounted. I basically want to use wireless mouse or keyboard. I think the kernel that is installed presently does not support otg. What is the ...
0
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0answers
61 views

How do I use external web camera though USB OTG on Huawei Honor 6?

Built-in kernel does not come with USB Video support and when using sideloaded uvcvideo.ko the camera works very bad (image is distorted, the device often crash). I can barely get even single 160x120 ...
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86 views

Lenovo S6000 - Auto power on after connecting charger

I searched the web to automatically power on my lenovo tablet after connecting the charger, but all the guides are for samsung and some other brands. File /system/bin/playlpm doesn't exist in lenovo ...
0
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0answers
25 views

Correct build choice for Nexus 7 lunch

I've been trying to install a kernel/bootloader/etc for my Nexus 7 wifi only model tablet and got this error from fastboot flashall, Device product is 'flo'. Update requires 'msm8960' or 'deb'. ...
0
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1answer
48 views

How to unroot and remove a custom kernal on android

I have had my Samsung s5 mini (G800F) for some time now and am looking to sell it. I rooted the phone and used a custom kernal that allowed OTG support for the phone. How do I remove the root and the ...
4
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2answers
161 views

Forcing Higher USB Current

The Big Problem: Like a lot of people we are finding that our tablet does not maintain charge when connected to USB (PC or other device, not AC jack, we need data and charging simultaneously). What ...
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1answer
38 views

Android kernel decompiling?

I want decopile kernel to add futures like OC. I extracted ram disk ,dts (device tree source) and copiled kernel from boot.img. I also have other files like recovery ,system ,data etc. How decopile ...
0
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0answers
64 views

Do I have a FUSE-enabled kernel?

I would like toknow if my kernel supports FUSE. If not, how do I build or download one with FUSE support, where on the FS do I place the kernel? I don't want to install CyanogenMod. I have a Samsung ...
0
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0answers
138 views

How to get Kindle Fire HD out of boot loop

I was trying to change the lockscreen image on my Kindle Fire HD 7 [rooted] using a guide on xda-developers, when I copied framework-res.apk using ES File Explorer, the Kindle rebooted. It now has ...
0
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0answers
25 views

What is the point of separating the kernel and the rest of the operating system?

With all of the Android devices that I've seen, the Linux kernel and the initial RAM disk are placed in (the poorly named) boot.img and the rest of the operating system is placed in system.img or ...
0
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2answers
237 views

How can I find the name of the Kernel and its version that is running in my phone?

I had flashed Android 6.0 Marshmallow in My Nexus 5. As a part of a rooting process, I had to flash the kernel to allow SU binary to work. All is fine and root works well. Kernel is a intangible ...
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1answer
56 views

Can we modify or replace kernel and shell of an Android Device? [closed]

Is it possible to modify the kernel and shell of an android device? Devices like Samsung Galaxy S6 or Xiaomi Mi4i? If yes, how is it possible? Does the Manufacturer need to provide the Kernel before ...
0
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0answers
107 views

Run custom Android image in Qemu

Is it possible to compile and run a Samsung Android image (e.g., kernel for Galaxy S6 or older version) in a mainline Qemu? Samsung has released the source code for most of its mobile devices ...
1
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1answer
107 views

How to determine if my device supports USB Ethernet controller?

I'm about to purchase USB-OTG Ethernet controller, but I read what it doesn't work on all devices. Furthermore, I've read what this functionality depends on Linux kernel been compiled with Ethernet ...
1
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1answer
86 views

How to run 2 shell scripts from ramdisk?

I am attempting to setup my ramdisk to fire off 2 sets of scripts. 1 is ramdisk /sbin only, the others are user allowed scripts # Check Properties on property:dp.early_init.done=1 chmod 0777 ...
0
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59 views

Run Bash Script from Terminal

I have modified a kernel's ramdisk to include a "settings" terminal run bash script. However, when I type in terminal su dp I get file is not found. dp exists in the ramdisk as /sbin/dp I've ...
0
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1answer
27 views

How practical the number of cores in Android

I've often wondered how practical the cores usage in Android smartphones. I'm looking from technical perspective. The articles that I've read so far claimed either more cores is good or more cores is ...
2
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1answer
2k views

How can I backup and restore Cyanogenmod 12.1 rom installed on my Samsung Galaxy 2 i9100?

Cyanogenmod(12.1)'s recovery has no backup or restore option. As I read in the answer of a previous post, CyanogenMod recovery is basic, so we should flash another recovery. The easiest way would be ...
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0answers
59 views

set pr_set_dumpable value to any apk on android device

I am trying to debug sigsegv errors in different apk files and found that many apps disable dumping the logs by setting prctl(pr_set_dumpable,0). Is there any way to get around this and get the ...
0
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0answers
20 views

How to modify appsbl

I want to modify the appsbl partition for my device, I know the danger but I want to learn how to unpack and repack it. What method and tools can I use ?
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2answers
54 views

Why one cannot download the drivers of the Android OS like we do in our pc's

I know that i sound kind of a noob but i had this question from the day i started tweaking my phone .I know that without kernel sources it is very hard to get drivers for the phone for the sake of ...
0
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0answers
37 views

Devices names from android system

for several days I'm trying to find devices ( accelerometer, g-sensor etc ) names and placement of theirs drivers? I'm new to android and linux and can't figure out where can I find this info. I was ...
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0answers
1k views

Why does the Kernel and Android System/Android OS drain my battery?

3 hours since unplugging my phone, and at light usage it's at 61%. It is the kind of problem I've had with my previous phone, and I have with my current phone, often starting a few months in and ...
0
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1answer
64 views

What does it mean if I can't find a kernel date?

I want to root my ZTE Grand X Max and it asks if the kernel date is before or after a specific date but when I go and look is has no date by the kernel version (3.4.0). What does that mean? Or do I ...
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20 views

From where can i download Android kernels [duplicate]

I have installed androido86 on my lenovo pc and i want to download extra kernels and flash it into my pc. So where can i find them. Also how to flash them directly without using update meyhod
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161 views

What is the Despair kernal for Nexus 5 and 6?

I'm rooting my nexus 5 with android m and it asks me to install Despair Kernel. I can't find any info on what does the despair kernel actually do. Is it safe? What improvements does it have vs stock ...
0
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1answer
328 views

How to decompile android kernel within android itself?

How do I decompile kernel.bin of my android 4.1.2 kernel on android itself? Is there an app that can decompile kernel.bin or any methods for decompiling kernel.bin? Thank in advance!
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284 views

Activating and loading kernel modules (uinput.ko) on CM12.1 sgs3

I recently installed CyanogenMod 12.1 on my Samsung galaxy s3 i747 (cm-12.1-20150526-NIGHTLY-d2att.zip to be exact). I want to use Synergy to share my computer mouse with my phone and to do this ...
0
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1answer
46 views

Is it possible to compleately and utterly brick a phone with no chance of repair?

As i have recently gotten into some research about android kernel development and would like to fiddle around my phone and of course i have seen all the warnings about "bricking your device" but it ...
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207 views

How to disable SELinux completely without recompiling the kernel?

When trying to port CyanogenMod 12 to my LG L9II, I experience problems with the wireless modem (3g/2g). I believe to have traced it back to the driver/kernel module not being loaded properly due to ...
0
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1answer
61 views

Will updating the kernel reset the phone memory?

I updated my OnePlus One phone to the company-owned system, Oxygen OS. The battery now is miserable - it depletes within 5 hours. I am looking for a solution to fix that without wiping and ...
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17 views

RCA tablet want to watch on monitor

I have an inexpensive tablet (RCA), and I want to hook it up to a monitor with a VGA hookup, I got the adaptor, micro USB on one side and VGA on the other. Hooked it all up, and nothing....I can't ...
0
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0answers
42 views

Recover from incompatible kernel

I have an old Evo 4g lte that I play with (it's not my primary device) and I got my self into a tough spot. I am currently S-on, and used flashkernelgui to change to the haunted kernel. I tried ...
0
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27 views

how to set or know scalling driver

I am trying to modify the scheduler/governor. For the same I need to know what CPUFreq Driver or scalling driver am I configured to run. 1.Where can I find what scaling driver am I configured to ...
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140 views

Is there any kernel requirement for installing Android Lollipop?

Is there a special requirement for a newer kernel in Android Lollipop? Can I use it with 3.4 kernel?
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1answer
1k views

How do I mount an NFS share on an CM 12?

I'd like to mount an NFS share on my Android cell phone, with perhaps a mount-unmount button on the home screen. Any ideas of how to accomplish this? My /system/lib/modules is empty. It doesn't have ...
0
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0answers
93 views

Is “Host GPU on” on android emulator same as GPU passthrough?

I see that there's "Host GPU on" for standard Android emulator(which is incidentally qemu-based) from Google. Is it same as the hardware acceleration obtained by successful GPU-passthrough in ...
0
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0answers
9 views

Exact link for download bZimage and zImage file for android 5.1 on nexus 10 [duplicate]

I would like to know where I can download the only files that I need : bZimage and zImage file for android 5.1 latest version / nexus 10 tablet without that I compile everything. I need only these ...
0
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0answers
73 views

Franco kernel “audio boost” damage risk?

I was wondering what is the actual risk of increasing the "speaker audio boost" in Franco kernel settings? Obviously, the easy answer is to not to modify default settings to minimize risk, but I ...
0
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1answer
35 views

What do you mean by kernel [duplicate]

I have many times come across this word. I even know a little about it but don't know exactly what it is.
0
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2answers
215 views

Stuck at boot screen after adding multi-user account

I attempted to add a multi-user account to my device, and after it automatically restarted, it has been stuck in the boot loading sequence. I tried un plugging it and running over night, it simply ran ...
0
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1answer
467 views

Enable framebuffer console in Android kernel source

Is it possible to somehow enable the framebuffer console in android kernel sources from samsung, to see kernel messages instead of just the bootlogo?