Database Info

[Completed] [Q] Beaglbone android 4.4 with 3.14 kernel

Hi All,
I've been reading these forums for sometime now. Until now I've only been here as a user of roms not as a developer.
However, on my current project I had the requirement to get an android distribution running on a beaglebone black embedded board. As there are a lot of experienced rom developers here I would like to ask my question here.
Currently I'm successfully booting the kernel. It also seems to get to the actual homescreen. However, it seems that I'm currently in a bootloop a when I reach the homescreen. I get thrown back to the boot animation.
My guess is that there is some kind of memory issue here. More specifically the vmalloc part.
I get the following error in the dmesg when the homescreen crashes:
binder: 1804: binder_alloc_buf failed to map pages in userspace, no vma
Can anyone confirm that this is good explanation and tell me how I should adres this issue? Or maybe provide me with some other tips?
I tried to increase the vmalloc size but I'm not really able to do so. if I enter the vmalloc=512M command on the uboot it doesn't really change the size...
Thanks

Hi there,
You must read some guides and tutorials for that. Starting from:
1. This guide about how to port different ROMs to your device.
2. This guide about how to port AOSP ROMs to your device.
3. This guide about how to port a ROM to your device.
4. This guide about how to create a new ROM for your device.
5. This guide for ROM development beginners.
6. This guide in xda university for building your own android rom.
7. This guide in xda university for porting an aosp rom from source.
There are also instructions on the cyanogen mod wiki site about it.
A good place to ask if you have questions about it or need help, is Chef Central - Android. Many devs are watching this forum and can help quickly.
Good luck

[Completed] [Q] compilation: wlan - custom kernel - Redmi note 4G

Hi All,
Please guide me to the right thread to post this query I have...
===
I am facing a challenge in compiling and getting the wlan (pronto) driver working for my Redmi Note 4G.
After the kernel source was released I have successfully compiled the kernel and booted it up.
However, I found that kernel source which xiaomi released on github is missing the wlan source...
Due to this, I am not able to use WiFi on my custom kernel...
I did a lot of analysis and tried to get the code of Prima's WLAN with Pronto support from other device branches to get the WiFi working.
But I have not been successful so far...
Hence I request here to guide me on the following:-
1) In case this has already been answered successfully in another thread, please guide me to it. I was not able to locate it.
OR
2) Please help me along to successfully get the WiFi working on the compiled custom kernl from the source...
OR
3) Please give me enough evidence that I will not be able get WiFi / WLAN drivers needed for custom kernel on REDMI note 4G, in which case I will abandon XIAOMI devices and request everyone in my ability and reach to not buy their devices!
Kindly guide me...
I am a developer with good technical knowledge, but new to Android arena...

Hi
Thanks for writing to us at XDA Assist. I think the best place for your question would be in this section:
Android Q&A, Help & Troubleshooting

No response in two days, thread closed.

[Completed] [Q] Disabling F2FS in Device Config for i8190

Hi everyone, I'm trying to build CM11 for the i8190 (S3 Mini) and I'm using NovaFusion's device config from github.
The problem is, their device config uses F2FS and I can't seem to figure out how to disable it. I've tried commenting out the F2FS PRODUCT_PACKAGES in device.mk but the ROM's updater script still contains commands to mount and format system as F2FS.
I tried checking build/tools/releasetools/ota_from_target_files but it's the default CM one (I didn't use a custom android_build repo).

Hi there,
First of all you must understand that Assist Forum isn't an helpdesk forum. Please read our sticky thread with the purpose of Assist.
Second, see bellow few guides and tutorials where you must start reading:
Getting Started: Building Android From Source
There are lots of resources throughout the XDA forum, for instance this one: [UltimateGUIDE][How-to]Create your Own Custom ROM an easy way|Android Secrets -_- and this one [ GUIDE ] How to Prepare Ubuntu 14.04 LTS Trusty Tahr to Compile Android ROMs
Good luck

[Completed] [Q] Develop Custom ROM & Recovery for Logic X3

I would like to develop custom roms and recoveries for the Logic X3. Unfortunately, this device is quite unknown so I can't find any drivers for it
It is currently on Android KitKat 4.4.2, and with its limited internal memory I am limited to the number of apps I can install. I have tried EVERY app/mod this forum and Google has to offer. None works.
I really would like to begin by making a custom recovery for it. Attached is a screenshot of some of its features.
Anyone who can help with this is greatly appreciated.

Hello there
You will find a lot of information in the XDA University pages, especially this one: Getting Started: Building Android From Source
There are lots of resources throughout the XDA forum, for instance this one: [UltimateGUIDE][How-to]Create your Own Custom ROM an easy way|Android Secrets -_- and this one [ GUIDE ] How to Prepare Ubuntu 14.04 LTS Trusty Tahr to Compile Android ROMs
Good luck

[Completed] Error when porting AOKP using source

Good evening to all. I have been trying to port AOKP for the HTC Desire 816 (htc_a5) for several weeks now, and I always get errors. The 816 already has 97% functional Cyanogenmod, So I'm using that as source. I repo synced with the Lollipop branch of AOKP and then used git clone to clone the CM device source ( https://github.com/CyanogenMod/android_device_htc_a5/tree/cm-12.0) into vendor/htc/a5. When I follow all the steps detailed in this guide, http://forum.xda-developers.com/showthread.php?t=2223690 I always get an error like this :
[email protected]:~/Working_dir$ . build/envsetup.sh
including vendor/aokp/vendorsetup.sh
including sdk/bash_completion/adb.bash
[email protected]:~/Working_dir$ lunch
You're building on Linux
Lunch menu... pick a combo:
\ 1. aokp_shamu-userdebug 4. aokp_grouper-userdebug 7. aokp_find7s-userdebug 10. aokp_sirius-userdebug
2. aokp_hammerhead-userdebug 5. aokp_amami-userdebug 8. aokp_honami-userdebug 11. aokp_yuga-userdebug
3. aokp_mako-userdebug 6. aokp_find7-userdebug 9. aokp_jfltevzw-userdebug 12. aokp_a5-userdebug
Which would you like? [aokp_shamu-userdebug] 12
ls: cannot access device/*/a5/aokp.mk: No such file or directory
build/core/product_config.mk:233: *** Can not locate config makefile for product "aokp_a5". Stop.
** Don't have a product spec for: 'aokp_a5'
** Do you have the right repo manifest?
Any help would be VERY much apreciated! Thanks!

Hi there,
Our XDA Assist team will give you links to threads/forums that are relevant to your problem. You may be pointed towards guides and instructions that can be quite complex.
This is not a "helpdesk" providing technical assistance but more to point you in the correct direction with your problem.
Thanks
You can learn more about kernel development here: [GUIDE] Build Your Own Android Kernel{Easiest and Fastest Way] [Using The NDK]
Here is also a video guide : [TUTORIAL][VIDEO]Build your own Android kernel
Good luck
Thread closed
Mod Edit: As a Senior Member you should be able to navigate the site without using Xda Assist please do some searching next time.