Reena Bains | 8 Jan 18:58 2014
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Enabling Bluetooth HID in 4.2.2 Platform

Hi,

We are developing a new device running Android 4.2.2 and we would like to enable Bluetooth HID. We would like users to be able to use a bluetooth keyboard/mouse/headset/etc. with our new device. 

I have updated profile_supported_hid to be true in /packages/apps/Bluetooth/res/values/config.xml. I can see the bluetooth hid service is running in logcat but when I check the bluetooth device information (using Bluetooth Explorer) the hid profile is not shown as being supported.

What else needs to be done to enable Bluetooth HID in the Android 4.2.2 platform?

Thanks in advance.

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T.A. | 7 Jan 21:55 2014
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building for MiniPC

Hello,

I am new to android porting/building topic, but I am interested by the MiniPC/USB sticks.

Unfortunately I am not able any official information about kernel/binaries or AOSP sources.

Any starting point is really appreciated!


T.A.

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Weston Weems | 3 Jan 23:40 2014
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Touchscreen multitouch changes between android 4.1/4.3?

Gentleman,

I've successfully ported android a number of times as well as ran through a number of iterations of android on the same sets of hardware but I've got something thats puzzling me.

Moving one of my bits of hardware from 4.1 to 4.3, I've noticed that multi-touch in the browser doesnt work (even after copying android.hardware.touchscreen.multitouch.xml to the appropriate place).

In testing with a multi-touch testing application and getevent, I do see multi-touch working, but the browser app / web views just ignore the functionality.

If anyone has any clues, they would be greatly appreciated!


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T.A. | 5 Jan 23:03 2014
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Building ROM for a device

Hello,

I am just about to begin play around android ROMs so please excuse me if questions are wrong.

I bought a nice book about porting android "Embedded Android". I also bought a non-name cheap tablet I would like to change.
As far as understood to build a ROM you need AOSP sources and the Linux kernel (and HAL) binaries form device manufacturer.
Please note building for my LG mobile was easy - I just follow http://source.android.com/source/building-devices.html (extract binaries to appropriate folders) and it worked.
My question is for the no name device in general - what should I do - ask vendor to provide binaries or I can extract from device (already rooted).


Thank you very much!

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Daniel Lukashevich | 3 Jan 17:57 2014
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Android System can't boot without launcher

Hi All!!!

I have own ROM without launcher but with my Admin APP which starts when device Boot Completed. Then this app download Launcher over the NET and install it.
So I have the following question.

How can I get device BOOT working without Launcher installed?

I got the following error when tried boot system without Launcher installed: BOOT FAILURE making Package Manager Service ready

Maybe someone could give help me what do I need to change in PackageManagerService to get Boot finished successfully even if there is no launcher installed in system.


Thanks a lot!
Dan.

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megharaj.ag | 2 Jan 06:59 2014

Adding display support for new device.

Hi all,

I am porting android jelly bean to a new device. I am have ported android kernel stuffs into my linux kerne  by using the patches from android kernel from their source code.

I have also added the device(very basic stuffs not wifi etc) files.

Now I am supposed to add display to my device. I am not concerned about hardware acceleration in the initial steps. I just want the display.
So I am supposed to add android display HAL. I am confused with three things.
1) HWcomposer HAL.
2) Gralloc.
3) Framebuffer.

The confusion that I am running through is that, I just want the basic display to work. What I am suppoesed to do for this.
Do I need to write HWcomposer, gralloc and framebuffer.

If I am supposed to do this can anybody point me to some documents regarding the same.

Also will the display be up if I implement only gralloc and Framebuffer.

Thank you,
Best Regards,
A G Megharaj

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Daniel Santos | 31 Dec 15:04 2013
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Porting Android 4.1 to 4.2 -- SDCard Issues

Hello,

I have been trying to port my phone Newman N2 to Android 4.2
Things are going kind well.
But there is a problem i can't solve and i am lost here.
And i have searched and researched and tryed everything i could and squeezed every idea i could have.

Here is the description .

The phone has an internal and external storage.
Both are mounted and accessible via adb.
I can do every operation read and write via adb.
However the phone cannot do nor see any contents of both sdcards.
For instances if i use RootExplorer and go into the sdcard folder it shows nothing.
But if i do it via adb i can list it's contents and modify.

storage_list.xml

<storage android:mountPoint="/mnt/sdcard" android:storageDescription=" <at> string/Phone_memory" android:primary="true" android:allowMassStorage="true" /> <storage android:mountPoint="/mnt/ext_sd" android:storageDescription=" <at> string/storage_sd_card" android:primary="false" android:removable="true" android:allowMassStorage="true" />

vold.fstab

dev_mount sdcard /mnt/sdcard 1 /devices/platform/s3c-sdhci.2/mmc_host/mmc1 dev_mount ext_sd /mnt/ext_sd 1 /devices/platform/dw_mmc/mmc_host/mmc0 nonremovable,encryptable
init.smdk4x12.rc

export EXTERNAL_STORAGE /mnt/sdcard export SECONDARY_STORAGE /mnt/ext_sd mkdir /storage 0550 system sdcard_r mkdir /mnt/sdcard 0000 system system mkdir /mnt/ext_sd 0775 system system mkdir /mnt/udisk 0775 system system symlink /mnt/sdcard /sdcard symlink /mnt/ext_sd /ext_sd symlink /mnt/sdcard /storage/sdcard0 symlink /mnt/ext_sd /extSdCard symlink /mnt/ext_sd /mnt/extSdCard


Any on what the problem could be ?

Thanks in advance :)

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Dharanija Thatham | 31 Dec 05:46 2013
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Unable to find Java interface files for controlling LED in android phone

Hi,
I have been trying to control the LED on an android phone. I can make the led blink by directly accessing the /sys/class/leds/red/brightness present in the phone using adb shell. But I am having difficulty in making the android talk to the led. I happen to come across this link online:
 I think that the C files in the 'led' folder and the led.h in the 'include' folder are necessary to expose the /sys/class location. But I also need the com_android_server_LedService.cpp and LedService.java files for the java interface and to call the function opening the /sys/class location. Kindly correct me if I am wrong. 

My problem is that I am unable to find the .cpp and.java files mentioned above. Any help/guidance in this issue is very much appreciated.


Thanks.
Dharanija

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Sunil Thakur | 30 Dec 04:10 2013
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Adding New Sensor to 4.4.2 latest android

Hi,

I am trying to add new sensor to the android latest release 4.4.2.I have developed the HAL layer for my sensors.
I dont have the hardware to test the same so I want to test the call flow reach my HAL layer.

The issue is that I dont see call flow coming to my HAL layer.

I have build the lib123.so and its there properly compiled in the /system/lib/hw.

My question is that we call hw_get_module() from the Framework code to initiate the particular module.

SensorDevice::SensorDevice()
    :  mSensorDevice(0),
       mSensorModule(0)
{
       status_t err = hw_get_module(SENSORS_HARDWARE_MODULE_ID,
            (hw_module_t const**)&mSensorModule);

,.....
}

I see that all the sensors present in the devices comes up but no call to my HAL layer.
1. What more settings to be done.
2. How all different sensors get called with one call hw_get_module.I dont see other hw_get_module call to other sensors


I am struggling with this for quite a sometime now.

Any urgent help is highly appreciated

regards
Sunil

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Ravishka Fernando | 27 Dec 20:09 2013
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firmware executing issues in ramdisk

mkdir /data/tombstones 0771 system system symlink /data/tombstones /tombstones mkdir /tombstones/mdm 0771 system system mkdir /tombstones/modem 0771 system system mkdir /tombstones/lpass 0771 system system # For firmwares mkdir /firmware_radio 0771 system system mkdir /firmware_q6 0771 system system mkdir /firmware_dsps 0771 system system mkdir /vendor 0771 system system mkdir /vendor/firmware 0771 system system devwait emmc <at> radio mount vfat emmc <at> radio /firmware_radio ro shortname=lower devwait emmc <at> adsp mount vfat emmc <at> adsp /firmware_q6 ro shortname=lower exec /system/bin/sh /system/etc/init.qcom.radio_links.sh exec /system/bin/sh /system/etc/init.qcom.q6_links.sh mkdir /data/qcks 0770 system system mkdir /data/efs 0771 system system

this is the style that comes with the rom i'm porting...How does the mkdir/tombstones/modem works? I have a htc phone where we have our firmware in different partitions but how it grabs them from the partitions without symlinks? I ported 3.4 msm kernel for my device (we officially got the 3.0.16 with ICS) in the 3.4 the kickstart and qcks doesnt work through ttyhsl.1 anymore with the rom I'm porting it use this tombstones way..just wondering how it works...the official ramdisk have the images in this format.

symlink /vendor/firmware/misc/modem.b10 /vendor/firmware/modem.b10 symlink /vendor/firmware/misc/modem.b09 /vendor/firmware/modem.b09 symlink /vendor/firmware/misc/modem.b08 /vendor/firmware/modem.b08 symlink /vendor/firmware/misc/modem.b07 /vendor/firmware/modem.b07 symlink /vendor/firmware/misc/modem.b06 /vendor/firmware/modem.b06 symlink /vendor/firmware/misc/modem.b05 /vendor/firmware/modem.b05 symlink /vendor/firmware/misc/modem.b04 /vendor/firmware/modem.b04 symlink /vendor/firmware/misc/modem.b03 /vendor/firmware/modem.b03 symlink /vendor/firmware/misc/modem.b02 /vendor/firmware/modem.b02 symlink /vendor/firmware/misc/modem.b01 /vendor/firmware/modem.b01 symlink /vendor/firmware/misc/modem.b00 /vendor/firmware/modem.b00 symlink /vendor/firmware/misc/modem.mdt /vendor/firmware/modem.mdt symlink /vendor/firmware/misc_mdm/image/amss.mbn /vendor/firmware/amss.mbn symlink /vendor/firmware/misc_mdm/image/dsp1.mbn /vendor/firmware/dsp1.mbn symlink /vendor/firmware/misc_mdm/image/dsp2.mbn /vendor/firmware/dsp2.mbn symlink /vendor/firmware/misc_mdm/image/dbl.mbn /vendor/firmware/dbl.mbn symlink /vendor/firmware/misc_mdm/image/osbl.mbn /vendor/firmware/osbl.mbn symlink /vendor/firmware/misc_mdm/image/efs1.mbn /vendor/firmware/efs1.mbn symlink /vendor/firmware/misc_mdm/image/efs2.mbn /vendor/firmware/efs2.mbn symlink /vendor/firmware/misc_mdm/image/amss.mbn /vendor/firmware/amss.mbn symlink /vendor/firmware/misc_mdm/image/htcssmem.mbn /vendor/firmware/htcssmem.mbn

So how does the tombstones works?? I'm a little confused here. we have both mdm and radio images..any help would be greatly appreciated..i tried both ways but still once the rom is booted the vendore/firmware folder is empty...

cut me some slack i'm still a newbie to android :) 

thanks..

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Puneet B | 26 Dec 12:15 2013
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booting get struck at boot log.

Hi,

I am using android4.2 and linux kernel 3.3 for Allwinner A20 chip set.

I booted same board from NAND. which is booting fine.

But from sdcard i got struck in boot logo.

there is no issue with kernel (i tried with same image).

Here i am attaching android logcat, kindly tell me where i am wrong:

i feel sdcard mounting will be issue ,kindly suggest me.

Regards
Punith

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Attachment (minicom.cap): application/cap, 3133 KiB

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