OTG stock kernel - Nexus 4 Q&A, Help & Troubleshooting

excuse me, is there a patch for the stock kernel to use with externally powered OTG?
I have not understood well the description in the various post.
Thank you and sorry for my bad english.

no answer??

Cant' say i've ever seen one for stock kernel. Maybe you could ask and see if ziddey would work on one.

goofball2k said:
Cant' say i've ever seen one for stock kernel. Maybe you could ask and see if ziddey would work on one.
Click to expand...
Click to collapse
Ok!!
Now I'm only interested to usb OTG, could you advise me a custom kernel with OTG Very stable?

rafelkrok said:
Ok!!
Now I'm only interested to usb OTG, could you advise me a custom kernel with OTG Very stable?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2007231
I use this one, very stable and great on battery.
There's also hellsgod kernel, hellscore
http://forum.xda-developers.com/showthread.php?t=2586524
This one is also very very good.
Do note you need a proper Y cable, and then an app that can mount. I've found stickmount to not work as well or often as Paragon NTFS but give each one a try and see for your use. Both available through the playstore.

Related

[Q] Kernel, multiboot, usb otg

Hello,
I'm a noob to all of this, currently running CM7.2 nightly on a green lens MB525.
I have tried to boot cm9 and 10 using multiboot, but failed. I assume this has something to do with the kernel?
I thought a custom kernel was not possible but has this really changed? I'd like to try some of the more experimental
roms, but especially, I'd like to enable USB OTG, which the omap chip should have. A robotics project
of mine could benefit from this greatly.
Is any of this really even possible, There are lots of documentation, but either it's out of date, or I'm just confused.
Thanks,
MarvinPa said:
Hello,
I'm a noob to all of this, currently running CM7.2 nightly on a green lens MB525.
I have tried to boot cm9 and 10 using multiboot, but failed. I assume this has something to do with the kernel?
I thought a custom kernel was not possible but has this really changed? I'd like to try some of the more experimental
roms, but especially, I'd like to enable USB OTG, which the omap chip should have. A robotics project
of mine could benefit from this greatly.
Is any of this really even possible, There are lots of documentation, but either it's out of date, or I'm just confused.
Thanks,
Click to expand...
Click to collapse
Hey,
custom kernels are possible, but at this time not in CM7.
Try the JellyX kernel for OTG.
Looks like what I'd like to use. Just to make sure: I don't think the kernel can be loaded from the sd card?
I have never been able to boot any of the new roms which I assume require a new kernel to run from the sd-card using multiboot 0.8. The only roms I have successfully run from sd are 7.2 and older. using 2nd system, i think 2nd init uses the internal storage?
I'm a little careful not to install a new kernel in my main system in case I'll brick it.
OTG on defy?are you sure?how to use
one-piggy said:
OTG on defy?are you sure?how to use
Click to expand...
Click to collapse
Not quite. I have no experience with OTG. I assumed (after the appropriate kernel modules were loaded) it only needed to be powered externally to make it act as a host, but apparently that might not be the case and an OTG cable needs to be purchased. But apparently it should work. Software wise I'll be using libusb which apparently is ported. Would like to hear if anyone has some experience with defy + otg.

[Q] Bluetooth Streaming with Cyanogenmod 10.1 - short breaks

Hi guys,
I use Cyanogenmod 10.1 shortly after I bought my Nexus 10 and had these reboots the whole time.
Usually I update once or twice a week to the current nightlys (depending on the changelog).
A problem I have from the beginning (with CM): When I stream music with Google Music to a Logitech Bluetooth receiver it works. But every 20-30 seconds I have a litte break in the playback. On my Galaxy S2 also with CM 10.1 I never had this problem.
What I did to solve the problem. Today I installed the stock Nexus 10 4.2.2 from Google and tried to reproduce the error. It worked fine. No problem at all.
Then I completely wiped the Nexus 10 again and installed the current nightly - from the scratch. Just installed Google Music and did a test. The same bluetooth problem again.
Ah and when I use a bluetooth keyboard the keyboard also loses connection time and again. Here the problem is even worse. When I´m are in web form the page gets reloaded and all I entered so far is gone...
Has anybody an idea?
I´m willing to give you all the information you need to help me (logcats etc.)
Thanks in advance
Marrtin
Have you tried using the stock kernel with CM10?
stiggy2012 said:
Have you tried using the stock kernel with CM10?
Click to expand...
Click to collapse
Hi and thanks for you answer.
Good idea. But I have no clue how to do that? And isnt´t the kernel always overwritten when I install a nightly of CM10.1?
Wishes
Martin
Martin7404 said:
Hi and thanks for you answer.
Good idea. But I have no clue how to do that? And isnt´t the kernel always overwritten when I install a nightly of CM10.1?
Wishes
Martin
Click to expand...
Click to collapse
I actually don't know off-hand, but it probably is, if its like other ROM's.
dibblebill said:
I actually don't know off-hand, but it probably is, if its like other ROM's.
Click to expand...
Click to collapse
Hmm - and where can I get the stock kernel from? Off course I found the whole stock firmware. But just the kernel out of it? And does this work together with CM?
Please make a bug report @ jira.CyanogenMod.org
Sent from my Nexus 10 using Tapatalk HD
Martin7404 said:
Hmm - and where can I get the stock kernel from? Off course I found the whole stock firmware. But just the kernel out of it? And does this work together with CM?
Click to expand...
Click to collapse
I don't think you can pull just the kernel out of it... I use KTManta myself.
dalingrin said:
Please make a bug report @ jira.CyanogenMod.org
Sent from my Nexus 10 using Tapatalk HD
Click to expand...
Click to collapse
Thanks - I just did so.
Martin7404 said:
Thanks - I just did so.
Click to expand...
Click to collapse
Thanks!
dibblebill said:
I don't think you can pull just the kernel out of it... I use KTManta myself.
Click to expand...
Click to collapse
You can. :good:
If you download and unzip the official rom package from google, you will find another zip inside. Extract that, and you will see a different rom for each partition of your nexus 10. boot.img is the kernel, and it can be flashed from fastboot using command "fastboot flash boot boot.img".
Thanks,
EDIT: If the KTManta kernel doesn't suffer bluetooth streaming issues for anyone else, flashing it instead of stock should serve as an equally good test. The original reason I mentioned flashing the stock kernel is because I too have seen bluetooth streaming issues, both with CM10 and when using the stock rom with franko r12 kernel. I'm now running completely stock rom and kernel, and have no issues.
stiggy2012 said:
You can. :good:
If you download and unzip the official rom package from google, you will find another zip inside. Extract that, and you will see a different rom for each partition of your nexus 10. boot.img is the kernel, and it can be flashed from fastboot using command "fastboot flash boot boot.img".
Thanks,
EDIT: If the KTManta kernel doesn't suffer bluetooth streaming issues for anyone else, flashing it instead of stock should serve as an equally good test. The original reason I mentioned flashing the stock kernel is because I too have seen bluetooth streaming issues, both with CM10 and when using the stock rom with franko r12 kernel. I'm now running completely stock rom and kernel, and have no issues.
Click to expand...
Click to collapse
If I switch back to CM, I'l be sure to test it. I'm currently in the process of deciding just how much I love "CRT Off", which I don't know if CM has added yet
Is there a solution for this stuttering problem? I have tried many roms and kernels, but bluetooth stutters when wifi is on.

OTG kernels?

Hi all.
My n4 is now bursting at the seams with ROMs. I desperately need to move them to my usb disk. I used to do this using ziddey/franko OTG kernel.I have now got used to using much faster, non otg kernels like trinity & matrix, unfortunately these at time of writing dont offer otg and i am no way capable of creating my own.
Anyine know of any other fast otg kernels?
I would just keep swapping between ziddey and other kernels but from what i understand franko one does something funky to the ram disk which would have a negative affect when other kernel is flashed back over the top.
Please help a noob : )
Thanks guys : )
Matr1x kernel now has OTG support. Head over to the Original Development you should see it. It's developed by Mathkid
Sent from my Nexus 4 using Tapatalk 2
scream4cheese said:
Matr1x kernel now has OTG support. Head over to the Original Development you should see it. It's developed by Mathkid
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Thanks, I'm a massive fan of matr1x and its what I'm holding out for re otg.
Otg not currently working in latest kernel. I know math kid is working on it as we've spoken about it.
Tbh is the kernel I want to continue using so wish math kid all the luck : )

OTG support in Android L

I have flashed Android L b3p3 . I have tried to read the original thread for help but its so messed up there.I guess hellscore kernel is working with otg support. Can someone explain me the process how to flash the kernel ? There is some boot.img stuff i cannot understand.
Sent from my Nexus 4 using XDA Free mobile app
I doubt KitKat kernels will work without some ramdisk changes. You may have to wait for our kernel devs to release a L Preview version.
I'm with Android L running in my nexus 4, but i have tested hellscore and helldoctor kernell and anyone support otg or maybe i have done something wrong. Do you know anything about the theme?
Thanks.
abhi8569 said:
I have flashed Android L b3p3 . I have tried to read the original thread for help but its so messed up there.I guess hellscore kernel is working with otg support. Can someone explain me the process how to flash the kernel ? There is some boot.img stuff i cannot understand.
Sent from my Nexus 4 using XDA Free mobile app
Click to expand...
Click to collapse
don't you have a flashable zip???
piedra96 said:
I'm with Android L running in my nexus 4, but i have tested hellscore and helldoctor kernell and anyone support otg or maybe i have done something wrong. Do you know anything about the theme?
Thanks.
Click to expand...
Click to collapse
First flash lrx21t-permissive-boot , then flash hells doctor kernel's latest version for android l then flash universal kernal manager. Then install synapse. In misc of synapse enable otg. Thats it
Permisive boot image link
http://forum.xda-developers.com/attachment.php?attachmentid=3015366&d=1416000948
Press thanx if i helped you
sejpal.chirag said:
First flash lrx21t-permissive-boot , then flash hells doctor kernel's latest version for android l then flash universal kernal manager. Then install synapse. In misc of synapse enable otg. Thats it
Permisive boot image link
http://forum.xda-developers.com/attachment.php?attachmentid=3015366&d=1416000948
Press thanx if i helped you
Click to expand...
Click to collapse
I am on Euphoria Rom, and Unleashed Kerenal.
and this flash drive. how I can connect to Nexus 4? without external cable?
sandy7874 said:
I am on Euphoria Rom, and Unleashed Kerenal.
and this flash drive. how I can connect to Nexus 4? without external cable?
Click to expand...
Click to collapse
I'm afraid that without an external power source you won't be able to connect that device to your Nexus 4 regardless of ROM/Kernel combination. The Nexus 4 doesn't put out a high enough voltage to power an external device without a power input!
Beans

Kernel help issues

Hi I just want help with some kernel, at now am using resurrection remix 4.4.2 as to my point that am unable to create a swap file on SD card as my kernel doest not support it had tried many swap apps but non of them works.
As I searched on Google with 4.4.2 custom kernels and flashed many but nothing happens... Kernel name remains same as factory default
As far as I am really confused and need some help from you guys... (Still using swapper for root on my Asus tab with cm10 stable and it worked fine for me hmm... Was thinking can I flash cm10 kernel of my tab by backuping my kernel and try to flash it on my s4 i9500 will it work??)
Thx
No it will not work.
Anyway there's just two custom kernel out there that supports 4.4 custom ROMs, just two:
1- Maxfour v14.
2- Persues v19.1 modified.
Any other kernel you may have downloaded could be for the wrong device, that's why it doesn't get installed.
aboodyaiman said:
No it will not work.
Anyway there's just two custom kernel out there that supports 4.4 custom ROMs, just two:
1- Maxfour v14.
2- Persues v19.1 modified.
Any other kernel you may have downloaded could be for the wrong device, that's why it doesn't get installed.
Click to expand...
Click to collapse
The for the rply but one help still needed with swap enable kernel any suggestions?
xxxanmol said:
The for the rply but one help still needed with swap enable kernel any suggestions?
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Click to collapse
I don't think they support Swap, so currently there's no solution for your problem ..
aboodyaiman said:
I don't think they support Swap, so currently there's no solution for your problem ..
Click to expand...
Click to collapse
Oh any way to modify the kernel?
xxxanmol said:
Oh any way to modify the kernel?
Click to expand...
Click to collapse
Only if you have Linux and aware of some codes and stuff
aboodyaiman said:
Only if you have Linux and aware of some codes and stuff
Click to expand...
Click to collapse
Lol I am a pure noob
Do you know some one who can help me with some modification for kernel....
Well, you need permission from the creator of the kernel and then you need someone who's free to do that
aboodyaiman said:
Well, you need permission from the creator of the kernel and then you need someone who's free to do that
Click to expand...
Click to collapse
Well That's a really long process........

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