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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Phone Restart after Inserting a kernel module

I am using CM-10 with kernel version 3.0.48-CM-xxxxx on Samsung Galaxy SII-GTi9100g. I have created a simple hello world kernel module. It compiles successfully and everything is fine having no ...
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21 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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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 ...
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17 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 ...
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4 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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52 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
22 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 ...
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32 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 ...
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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 ...
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22 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 ...
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1answer
24 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.
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2answers
92 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 ...
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1answer
121 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?
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433 views

Swap to Increase RAM but kernel issue

I have Micromax Canvas Doodle A111 phone with Android v4.1.2. My phone has 512 MB RAM by default. So whenever I try installing some new apps my phone becomes really slow so I decided to increase RAM ...
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1answer
36 views

Nexus 4 rooted, stuck at CM10 for various reasons - HELP!

I've been using a Nexus 4 for almost 2 years now. I rooted it to get LTE connection. Downgraded radio and all... it was beyond my level of expertise but I managed to get LTE and CM10, along with a ...
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1answer
186 views

Powered USB hub not charging phone. Kernel options?

I got a powered USB 2.0 hub (ET-UP900). As power source I am using the phones charger. But if I connect the hub with my phone (SM-C115) it does not charge. If I connect the charger directly it works. ...
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1answer
34 views

Is android kernel same for all devices [closed]

I m newbie to building roms. I have Hiawei G630 device with 4.3 kernel. My question is would it work if I use Samsung or other Huawei kernel. Sorry form my bad english
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58 views

USB to Ethernet Device driver does not work in android

On Ubuntu Linux, i cross-compiled USb to Ethernet driver from kernel source tree in drivers/net/usb/smsc75xx.c for android kernel. The cross-compilation worked fine and i was able to insert the ...
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1answer
390 views

Screen flickering galaxy s3

I noticed that my galaxy s3 sometimes show flickering on display when I am for example closing apps. I disabled HW overlays but it didn't help. I read that it can cause battery. My battery is fairly ...
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1answer
281 views

usb to ethernet driver installation

I am following this thread to enable my samsung android phone to do usb to ethernet communication http://forum.xda-developers.com/showthread.php?t=2039886 I copied the smsc75xx.ko generated by the ...
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1answer
229 views

how to find out secret service codes for android

I have a Spice Dream Uno (Android One) and none of the secret service codes I found on the internet (like ##197328640## and ##7378423##) work on it. Do I have to root my phone in order for these to ...
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0answers
54 views

Analyze backtrace of Kernel panic / find cause

I have this problem on my Samsung Galaxy Note 2 LTE with random reboots and kind of clean restarts in the kernel logs (no oops / panic, even though some usb errors) and now I got a kernel panic in the ...
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123 views

Seek Thermal camera on Galaxy Tab 2 10.1

Here is my problem: I upgraded my Galaxy Tab 2 10.1 P5113 to Kitkat 4.4.4 That was a requirement for installing the Seek Thermal Camera that I am having trouble with The other requirement that ...
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0answers
332 views

bootloops / random restarts on Note 2 LTE, worse with SIM inserted? analyze kernel log “last_kmsg”?

when I started using my Note 2 LTE with an LTE sim card (tested LTE long ago without problems), running CM11 nightly from approx. 1 month ago, it started to reboot randomly. But it also happened with ...
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17 views

What changes does rooting make on the system? [duplicate]

I wanted to know what changes implies in the system when you root an android device. I want to know how to have android rooted on my beaglebone black from source.
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1answer
473 views

Can one determine the kernel version of a Samsung device from the Android version?

Basically, does an Android version map to a specific kernel version on Samsung devices? For example, can I assume that Samsung devices running Android 4.4.2 will have kernel version 3.4.0 (or some ...
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77 views

Automatic turning on an android

i have found a solution of the problem of automatic turning on an android (not samsung), when battery is charging for this i've inserting the line /system/bin/reboot in the file /system/bin/ipod ...
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1answer
402 views

What does “se.infra@SEP-138#1” mean on kernel version?

I have broken my mobile, so I want to download the original version back. The original version is: Android version: 4.1.2 Kernel version: 3.0.31-638230 se.infra@SEP138#1 On kernel version, what ...
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57 views

How to bundle modules with a kernel for recovery installation

I have compiled a custom Kernel for my HTC Desire 200 unit from htc's source. After my kernel is compiled i get a zImage file. I then use Android Image Kitchen, to take a standard boot.img file and ...
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233 views

Any Fast Charge Kernel for Nexus 7 grouper? Franco Kernel?

I have the latest Franco kernel on my N7 2012 WiFi, normally it should be able to fast charge but I cant? Anyone have a solution or another kernel supporting fast charge for my device? This wont ...
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2k views

Extracting code from lk.bin (little kernel binary file) & preloader.bin - MTK6572, mediatek

This is a changed question from the original, since nobody seemed to have answered, found most of the answer on my own. As stated before, wanted to fix my userdata and fat area blocks after hacking ...
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196 views

dumpsys meminfo: differences between ICS and KitKat?

I noticed differences when I compare the meminfo of old Android and newer ones but I can't find documentation about it. Using the same apk, Graphics and GL only show up on KitKat and the usage on ...
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1answer
292 views

Trying to replace a modem but encountering errors

I've been having connectivity problems on my i9505 LTE on every ROM I've tried since August. Searching around reveals that the outdated modem is the source of the troubles, and that by using the ...
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1answer
122 views

What does it mean by letter 'g' in a kernel version string such as 3.4.0-gd59db4e?

In my Nexus 5 device, I can see the kernel version as follows: 3.4.0-gd59db4e I know 3.4.0 is the linux kernel version number, and d59db4e is short of a commit sha1. here is another example. I just ...
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0answers
9 views

LG G2 No Screen Need Access To Files [duplicate]

So my Sprint LG G2 (LS980) literally has no screen but I would like to be able to access it from my Windows pc. I don't think I had USB debugging enabled and without a screen I can't really do much. ...
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1answer
135 views

Is Android FAT / FAT32 implementation power failure resilient?

Does the android FAT/32 implementation handle sudden battery removal? I know that Symbian's 'Rugged FAT' (efat32.fsy) and Microsoft's T-Fat implement this, but I've not been able to find any ...
2
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0answers
818 views

AFwall+: Why does the Kernel need an internet connection all the time?

Since I started using AFWall+ (a firewall based on iptables) on Android, I was wondering why the Linux kernel tries to connect to the internet all the time? Allthough blocking the kernel I didn't ...
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2answers
844 views

does flashing a kernel ever wipe anything on the phone? + Doing it without CWM?

does flashing a kernel ever wipe anything on the phone? and is it ever dependent on android version? e.g. 4.22 or 4.3 I have CWM and i've seen the option to install from zip within CWM recovery. ...
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1answer
76 views

Using a wifi dongle to monitor network

I have an android smart box with a built-in wifi and I want to add a dongle to the box so that I can monitor the network. I have found a similar question with somewhat vague answer(at least to me); ...
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22 views

BatteryManager inner workings

I recently installed linux on a Sony Xperia Neo (on SD), but the Android kernel remains under the hood. I've only changed kernel initrd to boot off the SD's Debian. The real question is: ¿What is ...
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1answer
712 views

Programmatically, how does “rooting” a device enable access? [duplicate]

From a layman point of view, one would say, "Oh, I'm unrooted so I am blocked and access is not allowed." I want the programmatic point of view; telling me how an unrooted device doesn't have access ...
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1answer
2k views

Network Issue after flashing Cosmic ROM at Galaxy S Duos

I am a Galaxy S DUOS S7562 user and I have flashed Cosmic ROM v2.5 to my phone. However, I face some connectivity problems. My phone is dual sim but now it forever activates and deactivates both sims ...
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141 views

softbricked sgh-i337 at&t with 4.4.2 ota update

I have a sgh-i337 at&t usa GPe recently updated OTA, I tried to format my rom so I could patch my kernel and threw everything at it but the kitchen sink to clear the memory but could not get it ...
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0answers
45 views

looking for a kernel hack

I have am Samsung g4 with borked code and for forensics and repair reasons, I need to extract/pull a copy of the running kernel from the /boot sector which is only accessible via Odin. I have the ...
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1answer
262 views

How do you extract the boot.img from a samsung g4?

I don't image the adb command is able to access that sector of the device but for the record, when I connect, I can see the device but C:\Users\Brad2\Downloads\adbUnzip2Cdrive\adb>adb kill-server ...
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1answer
339 views

Where is the .config hidden on Samsung Galaxy S4?

cat /proc/config.gz tmp-mksh: cat: /proc/config.gz: No such file or directory Is there another place to find it?
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1answer
222 views

Help to understand working of powerbutton and volume rockers

I want to understand the workings of power button and volume rockers in Android devices, which are associated with the kernel driver of these keys. What happens in the kernel driver and boot loader ...
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1answer
73 views

Proprietary software distributed along with Linux kernel

What is the licensing rationale behind distributing proprietary (copyrighted) software within a common smartphone's Android system? I mean software like device drivers (camera, GSM modules etc.) or ...
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1answer
317 views

Confirming the nature of a Samsung update, and declining it

I find it a little bit offensive to receive a "Software Update" message on my Galaxy Note 2 that does not disclose the nature of the update (an OS update? an app update?). software update message ...
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1answer
405 views

Oddities Reading boot.img - Way Too Big and Errors In Kernel

This is related to this question but as I've made some progress since and run into some rather different issues that would mean I'd essentially have to rewrite it to be a totally different question ...