[APP][ROOT] USB OTG Helper (Stock/Custom kernel)

shardul_seth · Jul 29, 2012

A one-stop no-pain solution for enabling and using USB OTG mass storage on your android phone!

What is USB OTG?
It stands for USB On-the-Go!
"It is a specification that allows USB devices such as digital audio players or mobile phones to act as a host allowing a USB flash drive, mouse, or keyboard to be attached." - Wikipedia
The stock kernel allows Mouse & Keyboard, but USB storage is missing..

Features:

Stock and custom kernels supported
Mount and Unmount drive with a single click
No Ads!
Full NTFS support built-in!! (from v3.0.3)
Automatically start on device connect (intent broadcast) (from v3.0.3)
Notification when drives mounted! (from v3.0.3)
One click access to unmount (from v3.0.3)
Option to enable UTF-8 if kernel support (from v4)
Automatically open explorer after drive mounted (from v3.0.7)
One click debugging and feedback (in app) [Donate version only]

What phones are supported?
Sony Ericsson Xperia Neo, Neo V, Arc and the Arc S! Modules for stock kernel on second post.
If you get it to work on other devices, please PM me and I will add them to the list.

What are the requirements?

root (su binary)
busybox
USB OTG cable

How to use on stock kernel?
See this post to load modules!

WARNING
I will not be held responsible for any damage to your device. Do not use for a long time, u may risk burning the device chip/motherboard due to the voltage supply in host mode.

Screenshots and Screencast:

More Details and Download (Click Here)

Flashalot · Jul 30, 2012

i will try to donate some the best app on the plant no joke

vishal24387 · Jul 30, 2012

I am using galaxy i9003 with 2.3.6 stock rom rooted with cf root kernel. My installed kernel dont support for usb otg. Then will it be possible to use this app to enable usb otg in my phone with help by loading modules???

Edit : where are modules???

Skander1998 · Jul 30, 2012

vishal24387 said:
I am using galaxy i9003 with 2.3.6 stock rom rooted with cf root kernel. My installed kernel dont support for usb otg. Then will it be possible to use this app to enable usb otg in my phone with help by loading modules???

Edit : where are modules???

Any phone with either in-built mass storage support, or custom kernels or having required modules (for stock kernel).

I think you need to find and load the modules yourself before using the application.

vishal24387 · Jul 30, 2012

Skander1998 said:
Any phone with either in-built mass storage support, or custom kernels or having required modules (for stock kernel).

I think you need to find and load the modules yourself before using the application.

I am expecting modules for DDLF2 rom.

cukierkas · Jul 30, 2012

Hello there. I'm on galaxy sl xwlf2 rom with custom kernel.
And I have the otg cable

that would be really fun, if otg would work

looking forward to it

edit: on my phone there is no such folder like MODULES under system/lib

shardul_seth · Jul 30, 2012

@ Samsung users:
1. Kernel must support mass storage mode.. Ask your kernel devs in your forum about it.
2. Some models of samsung does not have power to the usb bus, so even if custom kernel/modules are there, you cannot use OTG without powered USB hub.

vishal24387 · Jul 30, 2012

shardul_seth said:
@ Samsung users:
1. Kernel must support mass storage mode.. Ask your kernel devs in your forum about it.
2. Some models of samsung does not have power to the usb bus, so even if custom kernel/modules are there, you cannot use OTG without powered USB hub.

Ya we have mass storage support by default. But we dont have USB OTG feature in our mobile. If samsung mobile is not able to supply power to external usb storage device then is this hardware limitation or software limitation???

shardul_seth · Jul 30, 2012

vishal24387 said:
Ya we have mass storage support by default. But we dont have USB OTG feature in our mobile. If samsung mobile is not able to supply power to external usb storage device then is this hardware limitation or software limitation???

It may not be enabled at kernel level. Maybe some kernel dev can take a look.

vishal24387 · Jul 30, 2012

shardul_seth said:
It may not be enabled at kernel level. Maybe some kernel dev can take a look.

As expected it didnt work on my phone

I think my phone doesnt provide sufficient voltage to output device. ai have attached logcat for ur reference.

Info:- In my mobile module folder is in path
system/modules/
I have successfully loaded all necessary modules. I have checked it using terminal emulator. Busybox is also installed.
These are my modules d-h.st/rPl

shardul_seth · Jul 31, 2012

vishal24387 said:
As expected it didnt work on my phone I think my phone doesnt provide sufficient voltage to output device. ai have attached logcat for ur reference.

Info:- In my mobile module folder is in path
system/modules/
I have successfully loaded all necessary modules. I have checked it using terminal emulator. Busybox is also installed.
These are my modules d-h.st/rPl

All your modules are live!! But it is problem of bus power, as the device is not showing up on dmesg also.. Try with powered USB hub if you have one

vishal24387 · Aug 2, 2012

shardul_seth said:
All your modules are live!! But it is problem of bus power, as the device is not showing up on dmesg also.. Try with powered USB hub if you have one

I have connected power source using USB Y cable. I have given power using ac to dc charger having 5v dc output & 1 A current. Modules are properly loaded. Busybox is also installed. But still there is no output from ur app. When I say that mount then its still saying that "no device found". How...???

I have attached log file for more reference.

Jeffreycat · Aug 3, 2012

Is it possible to get this working on the epic 4g touch (Sprint version of the Samsung galaxy s2)? I know the international version and other us carriers support it natively

shardul_seth · Aug 3, 2012

vishal24387 said:
I have connected power source using USB Y cable. I have given power using ac to dc charger having 5v dc output & 1 A current. Modules are properly loaded. Busybox is also installed. But still there is no output from ur app. When I say that mount then its still saying that "no device found". How...???
I have attached log file for more reference.

Not much hope then! Dmesg does not show anything!

vishal24387 · Aug 3, 2012

shardul_seth said:
Not much hope then! Dmesg does not show anything!

Can u tell me exactly which samsung devices u have tried successfully??? Which kernel version they have??? I talked with one of our kernel developer. He told me that to work usb otg the phone must have that driver & supporting kernel. Phone with supporting usb mass storage is insufficient to work this app. You should mention this in OP.

Edit :-
For reference I have attached dmesg file. One is for when external power source is connected & another is for when external power source is not connected. Interesting thing is that in dmesg I found 'usb otg' word in last 2-3 lines of both dmesg file. But I dont understand its meaning.

dead4ngel · Aug 3, 2012

Works perfectly

firstly i would like to thank the following making this app possible:

DooMLoRD - For the original idea and implementation.
shardul_seth - For creating this app.

thanks to you 2 users can enjoy using their external storage devices on their phones.

I am currently using this app on my galaxy note n7000 with criskelo 11.1 rom and speedmod k3-11 kernel. works perfectly fine. tested it on my fat32 32gb memory stick and no lag. also tested on my 1 tb external hdd and no lag there either. i cant say thanks enough. keep up the good work.

shardul_seth · Aug 4, 2012

vishal24387 said:
Can u tell me exactly which samsung devices u have tried successfully??? Which kernel version they have??? I talked with one of our kernel developer. He told me that to work usb otg the phone must have that driver & supporting kernel. Phone with supporting usb mass storage is insufficient to work this app. You should mention this in OP.

Edit :-
For reference I have attached dmesg file. One is for when external power source is connected & another is for when external power source is not connected. Interesting thing is that in dmesg I found 'usb otg' word in last 2-3 lines of both dmesg file. But I dont understand its meaning.

Hey vishal, your usb_storage module is failing.. Let some kernel dev on your phone model take a look and correct the module, or incorporate it in kernel itself..
Here are the relevant lines, as you can see, some symbols need to be exported before it can work!!

<4>[ 78.752349] usb_storage: Unknown symbol usb_alloc_urb (err 0)
<4>[ 78.752746] usb_storage: Unknown symbol usb_free_urb (err 0)
<4>[ 78.789489] usb_storage: Unknown symbol usb_alloc_coherent (err 0)
<4>[ 78.790161] usb_storage: Unknown symbol usb_register_driver (err 0)
<4>[ 78.800231] usb_storage: Unknown symbol usb_sg_init (err 0)
<4>[ 78.801483] usb_storage: Unknown symbol usb_sg_cancel (err 0)
<4>[ 78.801879] usb_storage: Unknown symbol usb_reset_device (err 0)
<4>[ 78.802124] usb_storage: Unknown symbol usb_submit_urb (err 0)
<4>[ 78.802581] usb_storage: Unknown symbol usb_free_coherent (err 0)
<4>[ 78.802856] usb_storage: Unknown symbol usb_control_msg (err 0)
<4>[ 78.803192] usb_storage: Unknown symbol usb_deregister (err 0)
<4>[ 78.803375] usb_storage: Unknown symbol usb_lock_device_for_reset (err 0)
<4>[ 78.823394] usb_storage: Unknown symbol usb_unlink_urb (err 0)
<4>[ 78.824096] usb_storage: Unknown symbol usb_kill_urb (err 0)
<4>[ 78.824401] usb_storage: Unknown symbol usb_reset_endpoint (err 0)
<4>[ 78.824859] usb_storage: Unknown symbol usb_sg_wait (err 0)

vishal24387 · Aug 4, 2012

shardul_seth said:
Hey vishal, your usb_storage module is failing.. Let some kernel dev on your phone model take a look and correct the module, or incorporate it in kernel itself..
Here are the relevant lines, as you can see, some symbols need to be exported before it can work!!

oh thanx buddy

You have given me very important information. I will talk with my kernel.developers regarding this.

vishal24387 · Aug 5, 2012

@ shardul

Hey buddy I am using cf root stock kernel having busybox inbuilt in kernel. Still do I need to install busybox saperately??? Actually without installing busybox ur app never gives me any error.

shardul_seth · Aug 7, 2012

vishal24387 said:
@ shardul

Hey buddy I am using cf root stock kernel having busybox inbuilt in kernel. Still do I need to install busybox saperately??? Actually without installing busybox ur app never gives me any error.

No, latest version of my app already has busybox inside, so no worries

[APP][ROOT] USB OTG Helper (Stock/Custom kernel)

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