[DEV] Fusion Drive for the GS4 - Sprint Samsung Galaxy S 4 General

Hopefully we can implement a "fusion" drive like newer macs. I know it's possible to make your own with a few unix commands, so I wonder if another dev and I could get it working on the S4. A fusion drive is basically a SSD+Traditional HDD that the system sees as one drive. It automatically moves the lesser used items to the slower drive and keeps the system intensive files on the faster drive. Essentially we could use this technology to make our MicroSD and EMMC appear as one unit on the OS.
If any DEVs are willing to work with me please shoot a PM. No other users at this time please.

Thread moved, please use development threads to post actual development, and always post in accordance with XDA rules.

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[Q] Truecrypt port to Android

Anyone here can port TRUE CRYPT to Android? I am ready to donate if anyone can do this.
Even a basic program that can encrypt and decrypt SD card, at least the external SD card would be acceptable. This way we can be assured that data on the external SD card is secure, and store documents on that.
I looked for something along the same lines for a while, tried every app I could find on the market that was related, but none of them came anywhere near truecrypt's functionality.
Sent from my Samsung Captivate.
Current rom: Perception b8
Agreed. If anyone could get an app that could atleast encrypt the whole external card, I'm good. Don't even want the functionality of mounting n dismounting as a drive.
Sent from my SAMSUNG-SGH-I897 using XDA App
I would LOVE, I repeat LOVE, if TrueCrypt came out for Android.
miztaken1312 said:
I would LOVE, I repeat LOVE, if TrueCrypt came out for Android.
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I am ready to donate if anyone comes up with this.
diablo009 said:
I am ready to donate if anyone comes up with this.
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Click to collapse
Me too!
It's the only application I can't find alternative on Android. I need a port of TrueCrypt or FreeOTFE very much!
I think we could start a bounty for anyone who can do this.
diablo009 said:
I think we could start a bounty for anyone who can do this.
Click to expand...
Click to collapse
I emailed them a long time asking if they would consider a port and I never heard back from them. Other people should email them and ask so they see that there is a desire for it
Sent from my Captivate
i would love this!
Here is the link on google android dev forms.
Code:
http://code.google.com/p/android/issues/detail?id=11211
Here are my posts on this: Comments 12 and 13
Code:
http://code.google.com/p/android/issues/detail?id=8686
Here is my post on this: Comment 101
This is the place where people can post what they want. Please feel free to post on this forum too, as it would be seen by android dev folks.
It would be super awesome if they ported it to the Android platform. In my experience, BB 9700 is a truly secure device with its full AES-256 encryption. I used to use it before i got my Captivate so i can def say i miss that feature.
How about a mod moves this thread to main Android forum to get more exposure.
-Arturo- said:
How about a mod moves this thread to main Android forum to get more exposure.
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+1 to this idea.
-Arturo- said:
How about a mod moves this thread to main Android forum to get more exposure.
Click to expand...
Click to collapse
U have an extra 250 MB in ur drop box now
Truecrypt has an dedicated forum, I would say ikt would make a lot of sense to go their and propose realistic outlines/requirements of what we expect from a TC version for Android. There seem to be a lot of folks who cling to the notion of "if it is important do not put it in a handset with a Google OS because Google kis teh evil".
Voice your opinions and needs there, maybe that makes a difference.
psych0t1c said:
Truecrypt has an dedicated forum, I would say ikt would make a lot of sense to go their and propose realistic outlines/requirements of what we expect from a TC version for Android. There seem to be a lot of folks who cling to the notion of "if it is important do not put it in a handset with a Google OS because Google kis teh evil".
Voice your opinions and needs there, maybe that makes a difference.
Click to expand...
Click to collapse
url please
i am already following abt android security on google forums
Is google down?
Software is called Truecrypt. Surprisingly it has an official website, truecrypt.org. Checking that one out you find a blue box on top which has a simple text link going to the forums.
http://forums.truecrypt.org
really not that hard to find. Linking the actual thread won't do anything either way cause you need to sign up for full access. Once you are, just use in site search with the term Android or something.
...this chunk of zeroes and ones has been generated by flashing a 400 Watt halogen bulb into the open fibres of a transcontinental communications cable...
I'll give it a try.
I'm setting up a machine to work on it right now, will let you know how it goes. First attempt will be to get some sort of command-line based utility operational.
10 char +++
I've been interested in making something like this. I do have android development experience as well.
I'm assuming opening a truecrypt container would be a good place to start.
How interested are you guys, really?

The Great Nook Compromise(tm)

So, after much deliberation, we have decided go ahead with the following plan...
When a new device like this comes out, it can be tough on users who are otherwise orphaned until a new board is made (or are left to scrounge in the Misc android board, where ideas can be lost quickly). With this understanding, it has been agreed that for the time being, the Nook Color boards will play host to the HD and HD+ users. I understand this may come with some tension, especially NC only owners, who may have to wade through extra threads to find what they want.
At this time, we must all be understanding, and work together to keep the board running as smooth as possible. To help do this, as of this post, HD posts will be allowed again (and closed threads re-opened), with the following provisions:
1) Any HD thread must be clearly tagged with a "[Nook HD+]"
2) Any HD thread not tagged will be closed (trying to manage two forums in one is a bit much.. if you can't tag it right, it will be closed)
3) Lets try to keep new threads to a minimum. This is still the NC board, and I do not want to see it taken over totally with HD threads. Unless it really needs a new thread, please keep it in one of the existing threads.
I hope we can all make this work; please contact me if you have any questions or problems.
Also, if you haven't, please make your voice heard on the official request thread - it may not help, but it sure can't hurt..
http://forum.xda-developers.com/showthread.php?t=1660354

A simplified way to connect all developers, share work, etc

Before a forum mod even thinks of taking this down- I've been in contract with Svetius and this may go live across XDA.
I would like to beta test here- and give developers and others a good example of what we can accomplish- as a collective.
I'll simplify for anyone who wants to jump in- click one of the following links, and if you don't get it, read on:
This is a link to the view only version, with ability to comment..
https://docs.google.com/document/d/...MZAPx-mLF8tnXPmBV2V7fRo/edit?usp=docslist_api
Here is the developers/contributor linkhttps://docs.google.com/document/d/...MZAPx-mLF8tnXPmBV2V7fRo/edit?usp=docslist_api DO NOT CLICK THIS LINK IF YOUR NOT ACTIVELY DEVELOPING OR CONTRIBUTING- I DO HAVE WAYS TO REMOVE PEOPLE IF THEY TAKE AWAY FROM PROJECT!
If someone else wants to create a new document, please include a link to this instruction document I've already created.
If no one else jumps on creating a development document for unified s5, I will create and post the edit and view/comment links in second post, or add your document if you choose too
I will update and add to this post this morning- please allow me to get second post
As of this moment, developers, recognized contributors, or users are disconnected- and you may not have the time to go hunting each other down, or answer 500 PMS.
This is my effort to connect developers- it is a LIVE document, and it uses your Google account to grant the level of access you need. Because it is a live document, you will see AS other people type. I can give non-devs the ability to view and comment only- but in that way, even they may be able to contribute.
There's a built in chat box.
It automatically tracks who makes changes so no credit has to be given for your work, or you can create a document you own and paste the link in my document. This is how we create a "tree" of organized data..
Links do NOT BREAK.. So even of you move the document in your personal folders, any link you put into my or any other document will work. Period. I've tested this over 4-5 years, and I'm sure of this.
The same way it tracks changes, you can revert to old versions.. So if someone accidentally selected all and hit backspace, by accident or as a jerk, in a few clicks I can put it all back.
I've been taking to mods and development teams here at XDA, and we are going to be doing this XDA wide, or at least that's how it is looking - this reduces devs duplicating work, because it is Google document, it requires no sign up, it's probably on all your devices or easy to download..
Of we start sharing and get or section done, it will give a good example at how all other subgroups can do there's.
The link in my signature(amaze Bible) shows how robust these Google docs can get. Here is a link if you can't see it. http://forum.xda-developers.com/showthread.php?t=1679486
Sent from my SM-G900A using XDA Free mobile app
I will add edit and view/comment links here in a few moments
Sent from my SM-G900A using XDA Free mobile app
This third post will contain a table of contents once documents start taking shape.
Please help this project, as connecting developers, contributors, and users will help us all!
But I've been asked to make sure this doesn't REPLACE XDA.. So if you have any posts that may be helpful already on XDA - LINK BACK TO IT.
If this goes XDA wide, they may be able to integrate this into XDA with backbend tools.. This could get really cool really fast. Pm or post you're questions or comments- but follow the development section rules!
Sent from my SM-G900A using XDA Free mobile app
I want to follow this.
kornfed said:
I want to follow this.
Click to expand...
Click to collapse
Follow yes, even help if possible
Click the edit link and go to the bottom where I put examples where I see this going.. You can comment (it explains how in the Google doc) if you don't want to change the doc itself.. So make suggestions, or even help me message a link to this thread to developers.. Because as I said, I've already been getting a pretty positive response from the top mod and his development team..
If we can show them this works and well, it will only help them see maybe this can be a priority.
I'm going to connect them with some backbend tools Google put out to integrate this into the site- so I need our XDA community collective to do/offer whatever they can to get or beta test product into something useful.
As a bonus, as easy as it is to link to docs, and link back to XDA.. We can reduce the number of duplicate questions, need for q&a threads, and the number of messages that developers get!
Even me, a recognized contributor- the more active I am, the more PMs I get..
So come on XDA collective- help me make this work!
It is now robust on a computer, but you can do 90% of this on any Google device you can install apps on
Sent from my SM-G900A using XDA Free mobile app
The amaze 4g is definitely a dated device, but we did this for that forum.. It helped a ton
Please, look at this example amaze 4g Bible and click the links in the take of contents which take you to the Google dochttp://forum.xda-developers.com/showthread.php?t=1679486
I'd like this and more, stepped up a notch, connecting developers- maybe even creating new ones that we allow view/comment access..
Sent from my SM-G900A using XDA Free mobile app
BUMP.
I edited original post- if you're a Dev click the second link, if you want to contribute in some way, click the appropriate link.
You literally click the link, on just about any device, especially anything android or a computer- and you're in, and able to contribute. No sign up. No wasted time.
This is EASY as it gets, but I can't make anyone do this.. This is about us collaborating and helping each other, unifying developers in one place - and REDUCING WORK.. Because I'm seeing a lot of developers doing the same thing, and it is called work duplication.. And time that need not be wasted if you all work together.
On top of that, if I and other contributors, official or not, can be part of the process.. Well, think of it as processing power.
Please give it a try, and let's build a team.
for developers and contributors in the unified s5 forum - please check http://forum.xda-developers.com/showthread.php?t=2997834
I'm trying to increase our collaboration, reduce duplication of work- and maybe even help out a few devs that just don't know your secret Fix's

[Suggestion] mods; split the dev forums?

Hi all,
The different sizes of the Tab S are largely incompatible, yet they share a forum. Can we please have separate dev forums for the variants in order to reduce any possible confusion for new owners looking for their goodies?
totally agree, +1 on that idea
This is a standard for tablets and low activity devices
with as LITTLE dev work that goes on everyone loses if it gets separated since one dev may not see progress another dev made. in this situation i have to say that very little work gets done on these tabs and if you want less for your device then separate them.
I'm not sure this is necessary, the proper use of the tag system should resolve any issues. It may be better to bring this to the attention of the tablet moderation team, rather than open a thread
O_G said:
I'm not sure this is necessary, the proper use of the tag system should resolve any issues.
Click to expand...
Click to collapse
Yes, but you'd be surprised at how easy it is to completely miss the model tag in the mess of other tags;
"[ROM+KERNEL] [DEVDB] [WIP] [SMT800] [LOLWTF] Hey, look at my ROM!"

Trying to develop bare-metal on a smartphone

Hi there!
Glad to be here. I have been reading your forums for years now, but at this point I need a bit of wisdom and guidance that I'm hopeful to find here.
I'm interested into doing some bare-metal development on some phones. Basically I want to port a particular virtual machine to this ecosystem, so I "think" what I want to ask right now is:
- where can I get some info/guides for assembly/c++ development that would allow me to write an exclusive application for an Allview P8 eMagic (for now that's a test phone I have). That device has a Cortex A53, but I think I'd be needing more information about how to set-up a build system, or at least the understanding of how I need to set up files to the internal memory to get it to boot and run what I want.
I have zero experience with developing bare-metal on smartphones.
Thank you!

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