Related
hy all
this is an project starter for android 3.4 kernel development for all msm7x30 mogami devices
sources are hosted on
https://github.com/freexperia/android_kernel_semc_msm7x30
br
J
Project Status
- we got initial branch after diffing lost of branches
M7630AABBQMLZA203029A
https://www.codeaurora.org/gitweb/q...it;h=4b2b84c6a0b6d29864e982a7aecc223acfd2eaa1
forked to our git and with mogami patches aplied
https://github.com/freexperia/android_kernel_semc_msm7x30/tree/M7630AABBQMLZA203029A
latest CAF tag for 7630 not usefull for now
https://www.codeaurora.org/xwiki/bin/QAEP/release
"November 16, 2012 M7630AABBQMLZA40701070 - msm7630 - M7630AABBQMLZA40701070.xml - 04.01.02" android 4.1
ETA
depending on problems and developers that will join
from 6 months to NEVER
This is a bold task. Perhaps you could look at the developments of irii-soft (and some others), they have replaced some crap Sony-specific code with generic wrappers. Main obstacle if I remember is memory maps now, there was an issue with partition maps but ATAG can be easily over-ridden via kernel command-line.
Getting it to boot should be trivial, sound and video will be difficult, and RIL may be never working due to lack of sources. Regardless, all the best. When I have more time I plan to help irii with his work on a "generic" 2.x kernel newer than what we have (because 3.x seems outrageous at this point).
Is there a wiki, a forum or something like that lists all the non-standard things that have already been found ? (some base of work to do)
Boudin said:
Is there a wiki, a forum or something like that lists all the non-standard things that have already been found ? (some base of work to do)
Click to expand...
Click to collapse
Easy to do yourself - download official SEMC kernel source and diff it with the same version of the linux baseline kernel. So to port to newer kernel you can isolate or "extract" the specific code that has been added and changed, and merge or "inject" that into a newer kernel. Easier said than done though, there are massive changes even in linux kernel revisions (0.0.x.0) - let alone alone new majors and minors (x.x.0.0).
There wouldn't be a wiki or anything of this research, because documenting it all would take an unrealistic amount of labor. Considering there are only a small handful of developers capable of it, there's no point. Besides, that's what GitHub and commit logs are for.
To FXP team,
I don't know if you know or not or even got this far in the development stage but I just wanted to point out a couple of things which may or may not help you...
So with the 3.4 kernel brings newer WiFi drivers which will give a better connection signal on wpa2 security but you might find that devices won't be able to connect to open security networks and WiFi hotspot will probably be broken. I'm posting this as on my gnex using custom kernel (FrancoFransico) he incorporated the 3.4 WiFi drivers a few times and broken hotspot and not being able to use open security WiFi networks were repeatedly reported problems.
I think it may be something hardware specific which allows these features to work on the 3.4 WiFi drivers specific to the nexus 4? You may have more luck trying the 3.0.xx WiFi drivers and getting those to work fully.
Best of luck to you guys!
Sent from my Galaxy Nexus
I'm pretty sure wifi is way down on the priority list, not to be rude but really - who cares about that now. Priority list would be like this:
(1) Get it to boot
(2) Fix primary/critical hardware-specific code for msm7k and qcom platform (display, audio)
(3) Fix RIL
(4) Fix secondary hardware (sensors, bluetooth, wifi)
One step at a time. Getting wifi will probably be trivial because bcm sources are part of the mainline kernel.
With that said, I'm unsubscribing from this thread now. There is massive work to be done and I can see this thread is just going to be filled with posts that have nothing to do with actual development.
All non-dev related posts, and especially "Thank You" posts, will be deleted without further notice. If I have to delete 5 pages of useless posts again, this thread will be locked.
Thank you!
We have tried for a long time already (as you may already know).
https://github.com/adridu59/semc-msm-3.4/commits/master
https://github.com/adridu59/semc-msm-2.6.35
https://github.com/adridu59/android-msm-2.6.35
https://github.com/ExPeacer/CAF_android-msm-3.0/commits/master
https://github.com/ExPeacer/CAF_android-msm-2.6.32
Have fun with it anyways.
adridu59 said:
We have tried for a long time already (as you may already know).
https://github.com/adridu59/semc-msm-3.4/commits/master
https://github.com/adridu59/semc-msm-2.6.35
https://github.com/adridu59/android-msm-2.6.35
https://github.com/ExPeacer/CAF_android-msm-3.0/commits/master
https://github.com/ExPeacer/CAF_android-msm-2.6.32
Have fun with it anyways.
Click to expand...
Click to collapse
Whats the progress so far on this? Bootable already?
CosmicDan said:
Easy to do yourself - download official SEMC kernel source and diff it with the same version of the linux baseline kernel. So to port to newer kernel you can isolate or "extract" the specific code that has been added and changed, and merge or "inject" that into a newer kernel. Easier said than done though, there are massive changes even in linux kernel revisions (0.0.x.0) - let alone alone new majors and minors (x.x.0.0).
There wouldn't be a wiki or anything of this research, because documenting it all would take an unrealistic amount of labor. Considering there are only a small handful of developers capable of it, there's no point. Besides, that's what GitHub and commit logs are for.
Click to expand...
Click to collapse
I was asked by some user of this forum to give some kernel porting guidelines in this thread, so let me introduce myself first. I'm the developer of 3.0.x kernel for Samsung Galaxy Spica (also several other projects for Spica and Galaxy Apollo/Galaxy 3) and currently also Linux kernel developer at Samsung Poland R&D Center. Porting the kernel for Spica was a difficult task, because of poor quality of original kernel code, which required rewriting from scratch most of it, but it was very educational.
It's not easy to give advice, but I'd say that taking all the differences from clean kernel and applying all of that on top of newer version is what should be avoided. Of course those differences should be collected to see what was changed by the manufacturer, but this should be only used for further analysis, not as a ready code.
Another thing, rather than using the mainline Linux kernel to compare your phone sources with, it should be better to use Android kernel from Google's kernel/common tree (see https://www.codeaurora.org/gitweb/quic/la/?p=kernel/common.git;a=summary for older version archive) bumped to the same minor version using minor patches (found on kernel.org) or, possibly even better way, by pulling appropriate version tag from kernel.org git on top of proper branch of Android kernel tree. This will elminate Google's changes (that would be already available in your new base - android-3.4 branch of kernel/common) from the diff.
For getting the diff, I would personally also use Git. If you create a branch in your working tree which contains Android kernel in the version corresponding to your device kernel (using the way I described in previous paragraph), then copying your device kernel sources onto your working tree (remember to make distclean both trees to remove any compiled/generated files) will allow you to see the differences using git status and git diff. (See http://gitimmersion.com/ if you want to learn more about Git.)
Now it's important to split the changes into logically separate parts, for example core changes in arch/arm/mach-whatever_suitable_for_your_device, adding of particular drivers in drivers/, sound/ and include/, modifications to core kernel code in any other directories. It's essential to check whether all the changes are really required or not and why, because minimalizing the set of changes required to be replayed on top of your new base kernel sources will simplify your work.
After collecting all the changes, it's the time to apply them on top of your new kernel sources. All the changes should be applied one by one, checking how much the component that is being touched has changed since your old kernel and adjusting the changes properly. After applying each change, it should be verified that the kernel at least compiles, although it would be even better if you could get the kernel without any (or almost any) modification to boot to some state, e.g. showing something on the console (any chance to get access to serial console on your device?), and then check if it still boots after applying each next change.
Some links that might be useful:
- Linux cross reference, for comfortable reading of kernel code - http://lxr.linux.no/+trees
- Linux Device Drivers, a book about kernel programming - http://lwn.net/Kernel/LDD3/
- Git Immersion, a great Git tutorial - http://gitimmersion.com/
- Android kernel/common repository with full archive - https://www.codeaurora.org/gitweb/quic/la/?p=kernel/common.git;a=summary
- Linux stable repository, with all version tags - http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
Hopefully what I wrote will be helpful in your project. Good luck and best regards.
Hey tom3q,
thanks a lot for leaving some useful statements here!
tom3q said:
Another thing, rather than using the mainline Linux kernel to compare your phone sources with, it should be better to use Android kernel from Google's kernel/common tree (see https://www.codeaurora.org/gitweb/quic/la/?p=kernel/common.git;a=summary for older version archive) bumped to the same minor version using minor patches (found on kernel.org) or, possibly even better way, by pulling appropriate version tag from kernel.org git on top of proper branch of Android kernel tree.
Click to expand...
Click to collapse
I digged for some base kernel for a while.
Found a chromium msm kernel 2.6.32.9 at codeaurora (i know this is not Android).
Anyway, the diff against stock was ~30MB... quite too much.
Like i assumed many basic things are missing as well, so too much to start from.
I guess, i'll step through the other projects... might try 2.6.32-rc8 from the msm tree... just for fun of course :angel:
tom3q said:
After applying each change, it should be verified that the kernel at least compiles, although it would be even better if you could get the kernel without any (or almost any) modification to boot to some state, e.g. showing something on the console (any chance to get access to serial console on your device?), and then check if it still boots after applying each next change.
Click to expand...
Click to collapse
Nice point... i like these hardware hacks and asked about testpoints for UART3 on the Pro mainboard a few days ago.
It's mentioned and so far i got it, initialized in stock kernel as well. Unfortunately no-one seems to know anything about these testpoints.
Anyway i don't want to spam this thread, so thanks for your attention
Regards,
scholbert
hy
scuse my ignorance
but
HOW do you compile an kernel ?
and maybe someone can explain what is the difference between bring-up and port
scholbert said:
Hey tom3q,
thanks a lot for leaving some useful statements here!
I digged for some base kernel for a while.
Found a chromium msm kernel 2.6.32.9 at codeaurora (i know this is not Android).
Anyway, the diff against stock was ~30MB... quite too much.
Like i assumed many basic things are missing as well, so too much to start from.
I guess, i'll step through the other projects... might try 2.6.32-rc8 from the msm tree... just for fun of course :angel:
Nice point... i like these hardware hacks and asked about testpoints for UART3 on the Pro mainboard a few days ago.
It's mentioned and so far i got it, initialized in stock kernel as well. Unfortunately no-one seems to know anything about these testpoints.
Anyway i don't want to spam this thread, so thanks for your attention
Regards,
scholbert
Click to expand...
Click to collapse
FXP said:
hy
scuse my ignorance
but
HOW do you compile an kernel ?
and maybe someone can explain what is the difference between bring-up and port
Click to expand...
Click to collapse
I would say that porting is moving and correcting sources from 2.6.32 kernel in our case into 3.x. And bring up is writing particular drivers from scratch?
Sent from my Nexus 7
voyteckst said:
I would say that porting is moving and correcting sources from 2.6.32 kernel in our case into 3.x. And bring up is writing particular drivers from scratch?
Sent from my Nexus 7
Click to expand...
Click to collapse
ok
nice explanation
look on first page
diff is 5mb on proper tag
pushed on github
nice to see so many developers trying to help
FXP said:
diff is 5mb on proper tag
pushed on github
Click to expand...
Click to collapse
Sorry to throw my 3 cents again, but seeing the repository on github, I'd recommend you to use some time to go through Git Immersion. Even if it takes some time, it will simplify your further work, as Git used properly can really make many things easier.
Otherwise, the diff itself looks mostly fine as a starting point, although some of the differences can be probably eliminated.
tom3q said:
Sorry to throw my 3 cents again, but seeing the repository on github, I'd recommend you to use some time to go through Git Immersion. Even if it takes some time, it will simplify your further work, as Git used properly can really make many things easier.
Otherwise, the diff itself looks mostly fine as a starting point, although some of the differences can be probably eliminated.
Click to expand...
Click to collapse
sony added too many changes to be usefull
since there are several api changes on 32->3.x diff is no good
we have to start from clean board-7x30 and populate devices porting drivers 1 by 1
we have to try an device bringup based on sony changes
I'm working on CM14, after a lot of go through I finally zipped it.
but its not booting up.
I used following Resources
Device Tree - It needs a lot of modifications.
Kernel
Vendor Files
MSM 8996 HALs from CM14 are giving Errors, so I used HALs from OMNI
EngMod: Logcat
Bump!
No one?
WhyOrean said:
Bump!
No one?
Click to expand...
Click to collapse
Unfortunately i cant help but i bump this thread
Thanks for your effortand hope someone helps.
Try port rom 7.0 from one plus 3 with file of miui n leak
Update: Got it booting :highfive:
But it seems like its display needs to be calibrated.
It shuts down after a giving a quick glance.
This time I used Precompiled Binaries from TheMuppets
Also Hardware/qcom/display-caf and Hardware/qcom/media-caf throw errors.
So I used ones from CM13 Branch.
-> Syncing CM14.1, seems like CM14 is abandoned.
WhyOrean said:
Update: Got it booting :highfive:
But it seems like its display needs to be calibrated.
It shuts down after a giving a quick glance.
This time I used Precompiled Binaries from TheMuppets
Also Hardware/qcom/display-caf and Hardware/qcom/media-caf throw errors.
So I used ones from CM13 Branch.
-> Syncing CM14.1, seems like CM14 is abandoned.
Click to expand...
Click to collapse
good job man! :good:
Whoa, that would be great, please keep us informed!
Good day lads,
Disclaimer:
Code:
I don't know if you noticed a thread in the Q&A section that was closed by Matt. While I respect Matt's decision to close it, I find it a very relevant topic... The future of LineageOS for the P9 Lite. Please note that I do respect meticulous' wishes to charge for his work because I know how time consuming it is I wish to firmly express that I do not condone this mentality when it comes to Linux based operating systems.
I decided to make this thread with my little Dev knowledge in order to attract more devs who's willing to put in work on a stable device tree for free in spirit of community and for all to enjoy.
I do not have the Lineage source code at the moment but I will start downloading soon, I do know that I will need help and I encourage more devs/beginners to lend a hand for the benefit of us all.
Please, to begin, post links to relevant tarballs/links/downloads for development purposes, device tree and kernels, anything you've worked on so perhaps we can all work together.
Cheers
Sent from my HUAWEI VNS-L31 using Tapatalk
Hmmm... The fact that building android ROMs is time consuming is not a good enough reason to request money for OPEN SOURCE SOFTWARE. Yes, LineageOS and android in general are open source, so that's an infraction.
About the collective effort, that's a good idea, but there are no sources from Huawei right now. You need to wait for the Nougat sources if Huawei really gives a dime about releasing them. From that point, it is easier to develop and get stuff working. Until then, good luck working without sources and experimenting stuff. Not to mention that there's no official TWRP as well, and TWRPs posted here on XDA for our devices have specific requirements to get them flashed on your device.
Asphyxiate666 said:
Hmmm... The fact that building android ROMs is time consuming is not a good enough reason to request money for OPEN SOURCE SOFTWARE. Yes, LineageOS and android in general are open source, so that's an infraction.
About the collective effort, that's a good idea, but there are no sources from Huawei right now. You need to wait for the Nougat sources if Huawei really gives a dime about releasing them. From that point, it is easier to develop and get stuff working. Until then, good luck working without sources and experimenting stuff. Not to mention that there's no official TWRP as well, and TWRPs posted here on XDA for our devices have specific requirements to get them flashed on your device.
Click to expand...
Click to collapse
Why do you need to come here with negativity? I don't support meticulous but he can do what he wants with the device sources he took the time to build, heck, he doesn't need to release those sources so I don't know what you're talking about, firstly. Secondly, a device tree can be built, Q.E.D we as a community can work on it together, if they release it we'll just have it much easier.
Note also; I've asked for relevant input and help from the community.
Thanks for your time though.
EDIT: P.S Professional Flasher, have you ever built a ROM before? Because that's my target here, finding people who knows how to fix error and put the tree together
Sent from my HUAWEI VNS-L31 using Tapatalk
Carlyle_f said:
Why do you need to come here with negativity? I don't support meticulous but he can do what he wants with the device sources he took the time to build, heck, he doesn't need to release those sources so I don't know what you're talking about, firstly. Secondly, a device tree can be built, Q.E.D we as a community can work on it together, if they release it we'll just have it much easier.
Note also; I've asked for relevant input and help from the community.
Thanks for your time though.
EDIT: P.S Professional Flasher, have you ever built a ROM before? Because that's my target here, finding people who knows how to fix error and put the tree together
Sent from my HUAWEI VNS-L31 using Tapatalk
Click to expand...
Click to collapse
Ignore it's just a critic custom rom user....[emoji12]
Hipom said:
Ignore it's just a critic custom rom user....[emoji12]
Click to expand...
Click to collapse
My words are razor sharp but honest and realistic.
Sent from my VNS-L21 using Tapatalk
Asphyxiate666 said:
Hmmm... The fact that building android ROMs is time consuming is not a good enough reason to request money for OPEN SOURCE SOFTWARE. Yes, LineageOS and android in general are open source, so that's an infraction.
About the collective effort, that's a good idea, but there are no sources from Huawei right now. You need to wait for the Nougat sources if Huawei really gives a dime about releasing them. From that point, it is easier to develop and get stuff working. Until then, good luck working without sources and experimenting stuff. Not to mention that there's no official TWRP as well, and TWRPs posted here on XDA for our devices have specific requirements to get them flashed on your device.
Click to expand...
Click to collapse
Open source does not mean free, period.
pilgrim011 said:
On xda, it does mean free, period. People that think that they should be paid for contributing here are not welcome on XDA.
Click to expand...
Click to collapse
you are totally right
Just finish already. If you want to discuss all that situation just create some g+ group or telegram for this.
XDA dev thread is not for that king of discussion.
Also it should be in QA SECTION.
You start xda dev thread when you have something made already. Not just with idea.
lsander said:
If you want to discuss all that situation just create some g+ group or telegram for this.
XDA dev thread is not for that king of discussion.
Click to expand...
Click to collapse
This disussions are undesired here. I know a board where you can discuss that. If you want, feel free to have a look at it. This little Board is very pleased about every enlivenment. Opened a thread over there.
Well, developers do not grow on trees. I guess there are not enough devs here who have the P9 Lite device.
However I like the intention of the thread author. For that reason please try to discuss in a human way.
In the end: I am vers interested in learning how to build custom roms but I can't find a way how to learn it. Does anyone have some good advice?
Updated kernel
Hello everyone, I've recently been working on updating the Honor 5c kernel to 3.10.105 and so far it seems to be working fine on my P9lite, LineageOS 14.1. It's based purely on stock, with one or two commits borrowed from Meticulus' kernel repo, so it compiles without errors.
Since this is a new account, I can't link my repo directly, you can find it on my github profile, Avsky.
I'll be making my own additions to master branch, while stocklike branch will contain only fixes and kernel updates.
If somebody would like to test them, you can get the boot image from releases tab on github. Stock kernel hasn't been tested, mind you, always keep a backup!
Also depending on how much time I have, I might get started on bringing OmniROM to our device (I'm really missing it). I'm just a college student though, so it might never see the light of day, any help is much appreciated.
Avsky0 said:
Hello everyone, I've recently been working on updating the Honor 5c kernel to 3.10.105 and so far it seems to be working fine on my P9lite, LineageOS 14.1. It's based purely on stock, with one or two commits borrowed from Meticulus' kernel repo, so it compiles without errors.
Since this is a new account, I can't link my repo directly, you can find it on my github profile, Avsky.
I'll be making my own additions to master branch, while stocklike branch will contain only fixes and kernel updates.
If somebody would like to test them, you can get the boot image from releases tab on github. Stock kernel hasn't been tested, mind you, always keep a backup!
Also depending on how much time I have, I might get started on bringing OmniROM to our device (I'm really missing it). I'm just a college student though, so it might never see the light of day, any help is much appreciated.
Click to expand...
Click to collapse
Hello, I tried your kernel on AOSPA MM but I couldn't get the proper unpacked zImage. I got only 9.7 MB gzip which contains the 22 MB Image but I couldn't extract it.
Could you provide the zImage?
dady000 said:
Hello, I tried your kernel on AOSPA MM but I couldn't get the proper unpacked zImage. I got only 9.7 MB gzip which contains the 22 MB Image but I couldn't extract it.
Could you provide the zImage?
Click to expand...
Click to collapse
Strange, I can extract it without problem using abootimg. Anyway, zImage now included on releases page.
Avsky0 said:
Strange, I can extract it without problem using abootimg. Anyway, zImage now included on releases page.
Click to expand...
Click to collapse
That zImage looks like the same I got from unpack. For some reason it won't boot when I repack it with my ramdisk.
dady000 said:
That zImage looks like the same I got from unpack. For some reason it won't boot when I repack it with my ramdisk.
Click to expand...
Click to collapse
I repacked and uploaded my image with ramdisk from your latest AOSPA, could you try it? Sizes varied a bit, I've used my abootimg config with SELinux changed to permissive, as that is the case in your image.
EDIT: I'm uploading extracted zImage as well.
Avsky0 said:
I repacked and uploaded my image with ramdisk from your latest AOSPA, could you try it? Sizes varied a bit, I've used my abootimg config with SELinux changed to permissive, as that is the case in your image.
EDIT: I'm uploading extracted zImage as well.
Click to expand...
Click to collapse
Yeah of course it works :silly:. Looks like my boot-packing skills are pretty low. Good job :fingers-crossed:
dady000 said:
Yeah of course it works :silly:. Looks like my boot-packing skills are pretty low. Good job :fingers-crossed:
Click to expand...
Click to collapse
Glad to hear it! Your images seem to be using uncompressed zImages, while in stock ROMs they're gzipped, seems like unintentional change somewhere in your build process.
Avsky0 said:
Glad to hear it! Your images seem to be using uncompressed zImages, while in stock ROMs they're gzipped, seems like unintentional change somewhere in your build process.
Click to expand...
Click to collapse
Yeah you're right. I just checked it and I am copying Image instead of Image.gz. Seems like it's only a 'cosmetic' issue because it runs anyways.
Great news guys, my sources now compile with latest Linaro toolchain. The kernel actually barely needed any fixes, but I'm not releasing anything prebuilt yet, since I have no idea what impact on stability my hacks might have.
Screenshot
ndroid1562 said:
Well, developers do not grow on trees. I guess there are not enough devs here who have the P9 Lite device.
However I like the intention of the thread author. For that reason please try to discuss in a human way.
In the end: I am vers interested in learning how to build custom roms but I can't find a way how to learn it. Does anyone have some good advice?
Click to expand...
Click to collapse
Perhaps reading through GitHub commits, checking the code and see whether or not you're really interested. If you're using a Linux distribution which I strongly advise, learn bash scripts first - it's easy and self explanatory and from there you will get basics of directories and calling up files.
Goodluck
Sent from my HUAWEI VNS-L31 using Tapatalk
Hi all,
Newbie here so please bear with me. Standing on the shoulders of giants like spudowiar, saleem rashid, hashcode and the Evervolv team (thanks all), I have forked some repos (github dot com/kekzoz) and changed the ev references to cm/lineage. I tried to build (seeing as the Evervolv ROM was for Nougat, I thought it would work for LOS 14.1), but I receive a build error as below:
Code:
ninja: error: '/kernel', needed by '/home/jack/android/lineage/out/target/product/soho/kernel', missing and no known rule to make it
ThePiGuy suggested it might be because my kernel is a common one, rather than a soho-specific one, but changing my defconfig from android_soho_defconfig to android_omap_defconfig resulted in the same error.
Please can someone assist?
Thanks a lot,
Jack K
Jack_Kekzoz said:
Hi all,
Newbie here so please bear with me. Standing on the shoulders of giants like spudowiar, saleem rashid, hashcode and the Evervolv team (thanks all), I have forked some repos (github dot com/kekzoz) and changed the ev references to cm/lineage. I tried to build (seeing as the Evervolv ROM was for Nougat, I thought it would work for LOS 14.1), but I receive a build error as below:
Code:
ninja: error: '/kernel', needed by '/home/jack/android/lineage/out/target/product/soho/kernel', missing and no known rule to make it
ThePiGuy suggested it might be because my kernel is a common one, rather than a soho-specific one, but changing my defconfig from android_soho_defconfig to android_omap_defconfig resulted in the same error.
Please can someone assist?
Thanks a lot,
Jack K
Click to expand...
Click to collapse
Fixed it - I had missed an 'ev' reference in one of the common device trees (one specifically relating to whether or not a prebuilt kernel should be used). Changing it to 'lineage' meant it started building the kernel from source. I'm still getting other build errors, but will do some searching on how best to deal with those before I ask a new question.
How goes the building of LOS 14.1?
jcruz942 said:
How goes the building of LOS 14.1?
Click to expand...
Click to collapse
Hi there. Please see my follow-up thread https://forum.xda-developers.com/ki...dle-fire-hd-3rd-generation-soho-uart-t4043083
Hello, everyone.
I noticed, there are many custom roms, but not that many for the SM-T505. Is it because it's newly released, or are there other reasons?
Yes, this is a new device and many people are probably waiting for the Black Friday/Cyber Monday deals to grab one. I just grabbed one for $150 on Amazon, a steal compared to something like a Fire tablet IMO. This is a low-end tablet, so there won't be as much focus on it as say a flagship phone. But thankfully it's already been unlocked and rooted, so the next step will be to get TWRP on it, and then custom ROM development can start to pick up on it. Don't expect any updates before the end of the year for custom ROMs though, it will likely take time to have TWRP up and running on it, but I am hopeful that we will see good things on this tablet in 2021
Without kernel sources it won't happen. See https://opensource.samsung.com/uploadSearch?searchValue=sm-t505 and https://opensource.samsung.com/uploadSearch?searchValue=sm-t500.
You can request them on that page. I did it a few times but no response so far.
paziusss said:
Without kernel sources it won't happen. See https://opensource.samsung.com/uploadSearch?searchValue=sm-t505 and https://opensource.samsung.com/uploadSearch?searchValue=sm-t500.
You can request them on that page. I did it a few times but no response so far.
Click to expand...
Click to collapse
Interesting... is it just me or is there no button to start an inquiry?
EDIT: Found it... just posted an Inquiry.
Watching!! I just bought the T500.
jlang11 said:
Watching!! I just bought the T500.
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Click to collapse
Just got an answer from Samsung, but don't get to excited. It was just an automated answer, that they received my inquiry. So stay tuned...
https://opensource.samsung.com/uploadSearch?searchValue=t500 gives you a 514mb file with kernel and vencor files.
Maybe both 505 and 500 are similiar enough to get you started
Sources are available: https://opensource.samsung.com/uploadSearch?searchValue=sm-t500
They include a toolchain in kernel tree, broken KConfigs and a lot of junk. I will try to clean a bit a mess and update a lean kernel tree to github
paziusss said:
Sources are available: https://opensource.samsung.com/uploadSearch?searchValue=sm-t500
They include a toolchain in kernel tree, broken KConfigs and a lot of junk. I will try to clean a bit a mess and update a lean kernel tree to github
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Will you also do a diff against the upstream version so we can see what they changed?
selemine said:
Will you also do a diff against the upstream version so we can see what they changed?
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Sure, but I'm going to remove the toolchain from the kernel tree since the beginning. It takes About 1GB alone and I don't want to have it on git refs because it will still take a lot of space even if removed.
The rest of changes will be available on github.
paziusss said:
Sure, but I'm going to remove the toolchain from the kernel tree since the beginning. It takes About 1GB alone and I don't want to have it on git refs because it will still take a lot of space even if removed.
The rest of changes will be available on github.
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It's been a long time, since i took up building custom roms and forgot about it for a while... if the kernel is cleansed from all the BS no one needs, that would be awesome.
There are a lot of small changes to comments and changes of 2 characters in a line. Wonder if they backported stuff there.
Kernel of the SM-T505 was just released...
If this is of any relevance, the download is 'just' 200MB... i wonder why.
The Platform Archive is mostly identical, just a few text files with notes and copyright were missing.
The Kernel Package as well, just small changes to netfilter and
a new defconfig file.
Defconfig for both devices also is more or less the same
gta4lwifi_eur_open_defconfig is missing one line compared to gta4l_eur_open_defconfig
CONFIG_SAMSUNG_FREECESS=y
Guess the difference comes from the toolchain mentioned above.
@paziusss
How far have you come?
Would be great if we had something clean to start a twrp and easier rooting
selemine said:
@paziusss
How far have you come?
Would be great if we had something clean to start a twrp and easier rooting
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Sorry, I have a very bad internet connection (uplink it is ~50-100KiB/s)
I created the repo a month ago: https://github.com/pazos/android_kernel_samsung_gta4lwifi
,tried to push and failed. Never tried again until now, but it is still failing.
So, if somebody is nice enough to dump the contents of the SM-T500 kernel in a github repo, I can fork and submit the patches without having to upload the whole thing myself.
paziusss said:
Sorry, I have a very bad internet connection (uplink it is ~50-100KiB/s)
I created the repo a month ago: https://github.com/pazos/android_kernel_samsung_gta4lwifi
,tried to push and failed. Never tried again until now, but it is still failing.
So, if somebody is nice enough to dump the contents of the SM-T500 kernel in a github repo, I can fork and submit the patches without having to upload the whole thing myself.
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Here you go
jayzarry84 said:
Here you go
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Thank you! It helped.
I had to apply the patch manually, so everything is in a single commit, but should be easy for others to understand what each chunk of code does.
Here you go: https://github.com/pazos/android_kernel_samsung_gta4lwifi
paziusss said:
Thank you! It helped.
I had to apply the patch manually, so everything is in a single commit, but should be easy for others to understand what each chunk of code does.
Here you go: https://github.com/pazos/android_kernel_samsung_gta4lwifi
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Just realized I didn't upload the Platform folder contents. It's uploading as we speak
jayzarry84 said:
Just realized I didn't upload the Platform folder contents. It's uploading as we speak
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I really have to ask, can i use this to build a custom rom for the SM-T505 as well?