Android :: ARM Directly Read / Write File On Sd Card I/O Without Cache


I need to directly read/write a file on sd card without cache. I can use "posix_fadvise" to achieve the purpose on Ubuntu I try NDK to make the function call, but it seems disabled on Android How can I do?

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I would like to get in my file browser File reference to external disk not SD Card. I mean I know that there is method Environment.getExternalStorageDirectory(); But to my knowledge this will get reference to SD Card. But how to get external disk (say kind of USB storage attached to Android device)? You know that device can have both SD card and external USB stick attached to them.

Motorola Droid Bionic :: Apps Storing Data On SD Card Vs Internal Storage? forums.motorola.com

I have a variety of apps that create export or backup files. How can the apps access the SD card storage directly? I recently replaced (under warrenty) my Bionic and it was a pain. I backed up everthing (app data that is) thinking the "backup" was going to the SD card, since all I got was a file address (or name). Once I moved the battery, SIM and SD card from one phone to the other, I realized that all the files were on the internal staroage and still on the old phone, not the SD card. This meant moving all of the hardware back to the old phone, finding all of the files stored on the internal storage, moving them to the SD card, switching everything back to the new phone and moving the files from the SD card to the internal storage - all the time hoping I got them in the right place (which wasn't necessarily the case all of the time).

General :: SD Card Music Not Showing Up On Music Player? forums.androidcentral.com

I recently bought an SD card for my Samsung Galaxy Centura, mainly so I could store music on it without taking up much of the memory. The odd thing is, when i went to play some music using the music player, only about a quarter of the songs showed up. When I used Android File Manage to check the SD card, they were all there and playable. All the songs are MP3 format. how I can get the songs to work on the music player?

General :: SD Card Unexpectedly Removed Or Damaged forum.xda-developers.com

I used Lenovo A789(ICS 4.0.4) android. I have Scandisk 32 GB memory cards. Some the mobiles give up a popup message "SD card unexpectedly removed or SD card damaged" . Sometimes my mobile taker restart with that message when "SD card unexpectedly removed or SD card damaged" message is shown I am unable to use SD memory's apps.

General :: Apps In SD Card Not Visible After Factory Reset Of Phone? forum.xda-developers.com

I was trying to root my HTC One V and i unlocked the bootlocker,however that resulted in factory reset of my phone.Whenever i installed an app on my phone i always moved it to sd card via settings-->apps.I assumed that once my phone restarts after factory reset it will read the apps in the sd card but it is not so.The phone does read songs,pictures and contacts stored on my sd card and the sd card does have the folder of each app but how do i install it from the sd card?

Lenovo X Series ThinkPad :: X240 - SD Reader Slot - Unable To Extract Card forums.lenovo.com

I just reveiced my Lenovo Thinkpad x240 20AL000AAU with SD card reader integrated.   I inserted an SD card standard size and the card is read properly, I can access all the files and I can write on it.   The problem is that I cannot extract the card from the SD card slot!   If I right-click on SD card in My Computer and choose eject, it says that it is safe to remove the card. If I select "Safely remove Hardware and eject media" it tells me that it is safe to remove it...but the card is stuck inside!   I read somewhere to press the card until I hear a click but I cannot hear any click.   Also the card is unreachable inside the slot. I cannot grab it to pull it. I can only press it a little bit with the nail, it goes one millimeter inside but I don't hear any click.

General :: Getting Apps From Market Directly To SD Card? forums.androidcentral.com

So is there any way to get apps directly to the sd card because i've run into an app i want but it takes up quite a lot of space for the onboard memory it didn't have alot to start with an the problem i have is i can't uninstall anything on my onboard memory to make room to download the app so i need a way to get the app either to my computer to put it on my sd card or a way to directly download it on to the sd card

General :: Applications Not Found After ROM Installation? forum.xda-developers.com

I have a problem with the new ROM I have installed. I had CM 10 Android 4.1 until I saw what paranoid android 3.1.5 can do like resizing applications, and I wanted to install it. So i did, but there seems to be a problem: the applications that I moved to SD card are not showing in the app drawer. Weren't those applications supposed to remain on the sd card after I have restored to factory settings, wiped cache and dalvik cache and installed the new ROM? The weird thing is that they don't appear in sdcard1/data/app neither. I want to see where the applications that i moved to sd card are located.... the battery drains faster...Is there an application to track the battery usage just to make a comparision with the CM 10.1 ?

General :: How To Store Data On SD Card forums.androidcentral.com

I'm using a Blu Tank 4.5 running Android 4.1.1 Everything (apps, email, txts, etc) all file to the internal phone memory even though, on the settings page, (Settings/Storage/Phone Storage) I have highlighted the SD Card button. The SD card is recognised by the phone and reports 29.57 GB available. I want data to file to the SD card.

MacBook Air :: Play Music Stored On An SD Card? discussions.apple.com

I know variations of this question has been asked a billion times but I would just like to get a simple answer if someone could help out. Im thinking of purchasing my first mac (air) and I would like to use the SD card slot to store my music.  If I store the music on the SD card, can itunes (or whatever other music playing program) play this music? Does read/write speed make a big difference just to play the music?   Info: MacBook Air, Mac OS X (10.7.4)

Windows On Mac :: Procedure To Download Wikipedia Offline On An SD Card? forums.macrumors.com

There is a commercial version of the entire downloaded offline Wikipedia for mobile phone OS's called WikiPock available preloaded on an 8Gb Micro SD card However, I realize Wikipedia is always available in a current version for download. What I'm looking for is a procedure to download it in a readable format onto an SD card myself. I would prefer to have it cross-platform so it could be read on either Win XP or OSX. Does anyone know of an application to do this or a link to a detailed written procedure?

Hardware :: SD Card Change To Read Only Status www.linuxquestions.org

With a Netbook that runs Kubuntu 10.04 i have always stored by regular files on a SD card. For ease I have used symbolic links to save and retrive data from the card such as a Documents folder. After a power crash my SD card which has always been read/write has changed to read only. The links do not work and if I try to make a new link "Read-only file system" is the error. I have tried chmod with the same error message. Device is owned by me not root. Saving to the device also returns the same error message. I have looked at a couple of similar streams but neither has any final resolution. changing the SD card back to read/write?

HTC Hero : Phone Wont Read Old SD Card / Way To Fix? androidforums.com

I am new to android. Got HTC Hero recently. Had HTC TyTN windows mobile. The Sd card from TyTn is not read by Hero. Files like MS word, Adobe, notepad etc are being detected, but when tried to open, it says application not found. I have downloaded sd card reader from market, but still the same problem. I am still using my old phone because of this.

Xperia X10 Mini/pro :: How To Install Apps Directly Onto SD Card talk.sonymobile.com

I'm new to xperia x10 mini pro, I've had quite a tough time getting some things done easily, all sofware I've downloaded have been installed on the phones memory, and the phones memory is full. I have an 8 gig SD card but how to install my apps directly on the SD card. I am using android version 2.1.

Android :: How's Android Directory Structure? stackoverflow.com

How the directories are disposed? Where do I copy my musics and pictures in my virtual device to test my apps? update: I entered the internet on the Android's virtual device, tried to save an image, and it says that "An SD card is required". I thought I've read in the android.developers.com that the device has a SD card by default. Anyway, I'll look for how to create it.

General :: Command Not Found Error While Trying To Compile Kernel From Source With NDK forum.xda-developers.com

I am following this right here [URL] .... And i keep getting command not found even though i am sure its right. Code: ~/AlienKernel3.0-alien-4 $ export CROSS_COMPILE=/home/user/ndk/android-ndk-r9c/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi- Code: sudo make clean && sudo make mrproper Code: make: /home/dm47021/Android/toolchains/arm-unknown-linux-gnueabi-linaro_4.8.2-2013.08/bin/arm-unknown-linux-gnueabi-gcc: Command not found /bin/bash: /scripts/gcc-version.sh: No such file or directory [Code] ....

General :: SD Card File Removal? forums.androidcentral.com

I had to get a new android and sprint gave me a Galaxy S2 in place of my Samsung Conquer,Well when sprint set up my new phone they just installed my SD card from the Conquer,Now when I go to my files, it shows SD card and EXT SD card, I want to remove the fines and the EXT SD card,all my files, folders, photos etc. are in the SD card folder, and work correctly, I have already tried to delete it through the phone, and it won't let me delete the folder, and If I put it in my laptop only the SD card shows up with only part of my folders and files,How can I remove the EXT SD card Folder ?

Motorola Razr :: How To Install Applications To External SD-card forums.motorola.com

How to install applications to external SD-card (not to internal storage - media area) ?Many modern games and geomapping apps have up to 1Gb cache each stored in internal storage. I've bought 16Gb SD card but it almost completely useless, because I cannot store anything but music and videos.Internal 8Gb storage is almost full.I think the problem is that internal storage mounted as mntsdcard , and external SD-card as mntsdcard-ext so applications are installed to sdcard not sdcard-ext, thats why my external SD-card is empty while internal storage is full

Android :: Trying To Write A Desktop Client To Synchronize Data With App groups.google.com

I am trying to write a desktop client to synchronize data with my android app. When i mount the SD card how can i find is this is android SD card and how to check if given application is installed of the phone ( by DE desktop client).

HTC Desire :: Putting Apps To SD Card androidforums.com

So I updated by phone to android 2.2, and am having problems putting apps to the SD card. I have used ROM Manager to set a partition, and used App 2 SD to copy the Apps over, but it always fails. So I put a diffrent ROM on, and it does the same thing. So I decided it was time to get a bigger SD card anyway, so while I wait for it to arrive, I thought I would ask, is there anything I should do to either my phone, or the SD card before I put it in my phone or anything I should do to prepare it so I can get apps on my SD Card. In my root settings (I think its root then you turn phone on and press the down button), in the partition section there what should the settings be? Also as I'm getting a 16gig card, having read bits on here by helpful posters who say I need to partition it to be 256 with a 0 swap file, as I will have more space, can I/should i increase this, and should I put a value for the swap file (what does this do?).

HTC Eris :: Storage Space Error androidforums.com

I just put xtrROM on my Eris and now I'm getting the "low space" notification. It says that I have 7mb left on my phone. I have 3.5 gb on my SD card. I had 4.0.4 on previously with the cache and apps on the SD card I had 4.5gb left before I did the wipe and install.After I reinstalled my apps using Titanium Backup, I started getting the notification. I can't figure out why I'm getting it though. It almost appears like the apps may have gotten installed on the internal memory on the reinstall.I first saved my SD card contents to my PC, did an SD card wipe, repartition, and made it ext3, then copied all data back. I tried running the apps2sd script via GScript and I get the following errors: stderr : sys : not found stderr: cannot create /system/etc/usersettings/conf/apps2sd_value: read-only filesystem Market apps (.apk files) will be moved to the sd card, reboot phone for changes to take effect.

Android :: Can App Access Files On Removable Media? groups.google.com

From what I've been able to find, Android apps are sandboxed, and can only list, read, and write files within the application's data directory (e.g. /data/data/<pkgname>). but, what about an application that allows users to view photos on an SD card (or play music, etc)? Surely this must be possible. Does one have to write a Service Provider for this?

Nokia Music :: 5800 Music Player Library Won't Read Music Files discussions.nokia.com

I have an Xpress 5800 and it was working fine until one day I put my micro SD card in my work PC, which automatically started syncing the music through Windows Media Player. After that, the music player library in the 5800 just will not recognise the music files on the micro sd card. I can still play the same music files through the file manager on the phone (one by one) but the music player library just won't be able to locate any music files on my card when I choose "Refresh Music Library" from the Music Player menu. More so, when I choose "View Card Details", it counts the music files as "other files" rather than "Sound files". But if I put in another sd card in the phone (from my previous E66) then it works with music player on the 5800 just fine. I suspect it's the WMP which has written something on my sd card which has stopped the 5800 from reading it properly.

Motorola Droid :: SD Card Not Present & Won't Connect Via USB To Mac forums.motorola.com

suddenly my SD card decided that it was going to disappear, and even though it's there, my phone is not detecting it. I pulled the battery, removed the SD card and plugged it into my computer via adapter (not phone) and was able to access it. I put the SD card back in my phone, power up then go to Settings>SD Card & phone storage and under 'Mount SD card' it says "Insert an SD card for mounting". Okay ... so a few days later I exchanged SD cards with a "droid" friend and she was able to detect my card in her phone, but again my phone is not detecting her card. Bummer... Also, when I plug my phone into my computer via USB to Mac I am unable to establish a connection. I am using Android File Transfer. I have tried to format SD card (FAT32) with Disk Utility and still nothing... So I'm almost convinced that my phone is damaged. It was working last week.

Nokia: 5800 Music Player Library Wont Recognize Files discussions.europe.nokia.com

I have an Xpress 5800 and it was working fine until one day I put my micro SD card in my work PC, which automatically started syncing the music through Windows Media Player. After that, the music player library in the 5800 just will not recognise the music files on the micro sd card. I can still play the same music files through the file manager on the phone (one by one) but the music player library just won't be able to locate any music files on my card when I choose "Refresh Music Library" from the Music Player menu. More so, when I choose "View Card Details", it counts the music files as "other files" rather than "Sound files". But if I put in another sd card in the phone (from my previous E66) then it works with music player on the 5800 just fine. Has anyone come across this at all? If so, how do you fix this? I suspect it's the WMP which has written something on my sd card which has stopped the 5800 from reading it properly.

Android :: Phone Read Blackberry Mem Card? androidforums.com

My daughter has a Blackberry Storm, and has ordered an Incredible, which is due to arrive Monday Sept. 13th. Is the card formatted in a format that Android can read? Or will I need to mount the card in my computer and copy all of the photos and stuff she wants to save, let Android reformat the card, mount it in the computer and transfer the stuff back onto the card? I would appreciate the advice of someone with knowledge of BB use of the Micro SD card.

Android : How To Force MediaStore To Rescan SD Card groups.google.com

If I pragmatically store new media files on the SD card, the MediaStore does not know about them until I remove and reinsert the SD card. Is there a way to tell the MediaStore to rescan the SD card without first unmounting the SD card?

General :: SD Card Blank Or Unsupported File System forums.androidcentral.com

Seen this error. My sd card is not readable on any android phone or computer ive tried it on. What I think broke it was the NEW SD CARD storage optimizer by Kalyani, I opened it up after downloading off the android market and used a feature called file explorer. It took forever to read all the files on my card and eventually I closed it out before its completion and immediately noticed my sd card is now inaccesable. Is that error fixable or should I throw out the card?

General :: Running Out Of Storage Space And Can't Transfer To Another Partition Or SD Card forums.androidcentral.com

I'm not very familiar with Android OS, I recently purchased a NOBIS 9, 1.5GHz Cortex A9 Dual-Core processor, 1GB DDR2 of system memory, and 8GB of internal storage running on Android 4.1. So far I have only downloaded and installed exactly 7 apps from Google Play and all my pictures and videos are in my SD card and I suddenly have no storage room. When I go to settings/storage, I see that there are 2 partitions to the tablet's storage both named INTERNAL STORAGE. Apparently all the apps are being installed in one of the partitions, the one with only 661 MB of space. I was able to go into the APPS setting and move 4 off the apps to the SD card, but the rest of the apps do show the MOVE TO SD CARD option but are not allowing me to press it. Is there any way to somehow move the apps to the other partition or the SD card? Or is there a setting that I can change to allow all new apps to be installed in the SD card?

General :: Move Gallery Cache To SD Card? forum.xda-developers.com

My gallery cache is close to 2gigs. Syncing from Picasa... Any way to move it my SD Card? If I clear the cache, it just re-downloads and creates new ones. Currently internal storage cache: SGH-I317MPhoneAndroiddatacom.sec.android.gallery3d

General :: New Context Menu Doesn't Appear When Accessing SD Card From Computer forums.androidcentral.com

Basically, I'm unable to make a briefcase folder on my phone's SD card. I can make new folders, but I don't get the range of options that you would normally get when hovering your cursor over the "New" option (when opening the "New" context menu) when accessing my SD card via a usb cable plugged into the phone; I'm actually able to get the context menu when accessing the SD card by sticking it straight into the computer, but when it remains in my phone (and the phone's hooked up to the computer), I don't get the context menu. Here's what I want: Obviously, I can just use the SD card by plugging it directly into the computer, but it's inconvenient to take off the case, remove the back, etc. I'd rather just plug a USB cable directly into the phone. Why is my phone preventing me from getting that context menu when doing so though? Samsung-SGH-I437 Android version 4.1.2

General :: No SD Card Notification On GS3 forum.xda-developers.com

My SD card was running normally on my gs3...yet this morning I had this notification "no sd card" something like that ...I couldn't enter neither to my files nor to my songs and photos....its like no sd card there !!!! How do I fix it without losing my data also when I plugging it in my laptop I cant see the sd card ever !!!!!

MacBook Pro :: How To Put A Downloaded File Onto SD Card Through It discussions.apple.com

I just downloaded a file onto my mac and how I need to move to the sd card Info: MacBook Pro, OS X Mavericks (10.9.2), Pages

Ubuntu :: SD Card Only Opens In Readonly? ubuntuforums.org

I am trying to write a file to a SD card in my card reader.When Ubuntu first boots in and I open up the SD card It gives the option to create folders and files. However after a second or two the window closes and then will only let me vew the files.Does anyone know how I can fix this so that the SD card is able to be written to?The lock is not on the SD card, and under permissions it states that I have permission to create and delete files.I am using an up to date version of Ubuntu Lucid Lynx 10.04I have tried searching for a solution but cannot find anything relevant that works Edit : output of syslog from removing and reinserting the SD card Jul 12 19:19:19 p0is0n-desktop kernel: [ 1122.332963] sd 10:0:0:0: [sdd] 3970048 512-byte [code]....

Motorola Xoom Unlocked :: It Doesn't See (and Deletes) More That 4GB forums.motorola.com

I am using 32GB microSD card. If I connect my Xoom to my PC and transfer files, as soon as I reach 4GB utilized storage on the SD card, all files gets disappeared, and moved into the LOST.DIR (renamed).If I unmount the card, put it into my PC, and copy files to it, as soon as I mount this SD in my Xoom all files that were copied to the SD after it reached 4GB in utilized storage, they just get deleted (nothing in the LOST.DIR). Even if I will mark these files as Read-Only they still get deleted.

BB Curve :: Download Or Transfer Files Without SD Card? supportforums.blackberry.com

I have a blackberry curve 8520 and I try to download files (in special music) but sims I can't ,it say that I don't have free space and files are to large. I check and I have a lot o free memory. With SD card are not any problems. Same problem with PC transfer. I read some similary topics but I don't find a folution to put something in this phone without SD card. It's really unlikely bug/problem .

General :: Apps That Can Save Data To File forum.xda-developers.com

are there any android apps that can save data to files then copy to folder or sd card? for example, I want to take some notes and save to text files in notepad and save to sd card. I found almost none of android apps can save. can any list some apps can save data ?