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[Q] USB Hosting

I bought a small micro - usb female adapter. When I plug it in, no matter what device i use it seems as those the xoom is not sending any power through it.
Ive tried
Camera
Charge Phone
usb mouse
usb wireless mouse
nothing is getting power.
Is there something i need to enable or do? Or has anyone esle has this issue? I am on 3.1....

You can not use a simple micro usb adapter cable, it has to be an OTG USB Host cable like the official Motorola camera connection kit that is now available. This is a bit expensive but readily available at your local Best Buy.
Take a look at some of the many posts on OTG cables and you can find info on cheaper cables that have been verified to work or on how to make your own.

you need a USB Host cable. Not just a regular sync cable. You can google for one or search the threads here where others have linked to confirmed working cables.

dang, thanks guys

I ordered one from ebay! hope it works

I have a question that applies here, I am on stock 3.1 Xoom WiFi/3G and just got my OTG cable, plug it in usb drive blinks like its working but where is it located on the Xoom? I've been looking around for it with Astro and File Explorer and I'm unable to find it... could someone tell me the path?

Techsniffer said:
I have a question that applies here, I am on stock 3.1 Xoom WiFi/3G and just got my OTG cable, plug it in usb drive blinks like its working but where is it located on the Xoom? I've been looking around for it with Astro and File Explorer and I'm unable to find it... could someone tell me the path?
Click to expand...
Click to collapse
i believe stock 3.1 only supports MTP, hence no USB mass storage.
http://en.wikipedia.org/wiki/Media_Transfer_Protocol

I've heard many conflicting stories, I would like some sort of confirmation rather then speculation about what will/will not work with the Moto Xoom (Stock 3.1) Wifi/3g and an OTG cable because I've seen posts saying yes and no to USB, portable HD's etc etc. Can anyone even provide me with some informative links? Everything I've searched for has been less than informative.

So, stock 3.1 Xoom is an MTP device, that is true.
However, with latest series of Tiamat custom kernels by Bigrushdog (see Android Development section) the usbOTG has been enabled. If you have already rooted and installed the proper bootloader/Tiamat kernel, then in File Expert you will find the usbOTG folder on the root directory, same level as internal sdcard and data folders. If you go up a step in sdcard, you should see your external sdcard. Is this clear?

I have rooted, using the Tiamat 1.6, I have access to the sdcard now but I am still unable to access my usb drive (thumb drive). I have an OTG usb cable and when I go into the /OTGusb its empty. The drive blinks as if its initializing but then nothing.

On a side note, I have looked through both OTGusb folders, restarted the Xoom with the OTG and usb plugged in as suggested in another post and nothing I've tried has worked in locating the usb drive.

Techsniffer said:
I have rooted, using the Tiamat 1.6, I have access to the sdcard now but I am still unable to access my usb drive (thumb drive). I have an OTG usb cable and when I go into the /OTGusb its empty. The drive blinks as if its initializing but then nothing.
Click to expand...
Click to collapse
I've found that there are two factors which may be in play here...
1. When I connect a flash drive it takes a bit of time for the directory structure to parse... It does show up in the OTGusb directory.
2. I've found that anything larger than 8GB (I've seen it stated in the forums as well) does not work (of if it does it takes forever and a day to become available)
Hope it helps...

I have same problem here. whenever I try to connect the USB with Motorola connector, it doesn't appear anything in otgusb

I'm not sure I am going to get what I want at this time with the OTG cable. My goal is to be able to use the OTG cable to connect a USB thumb drive to so I can carry additional movies, documents, etc without completely consuming the main Xoom storage.
Can the OTGusb cable support this? Do I need to wait for yet another update?
TIA

[Q] micro usb to usb adapter

I have a 2.2.1 (rooted) Mesmerize and I can't get it to recognize anything plugged into the Samsung Micro USB to USB Adapter I just bought.
The phone is set to "Mass Storage" for USB and I've tried both USB Debugging on and off.
I can't get it to recognize any of 5 thumb drives that I've tried connecting to it. So either it's a bad cable, or something else in the phone is preventing the connection. Help, please!
EDIT: I'm possibly naive in assuming that this (reading a USB thumb drive from the phone) will work at all, but since they (Samsung) sell the cable and tout it as being capable of it, I must just be missing something such as a setting or the necessary version of Android or a wonderful hack from this group.

[Q] USB OTG - Can't get usb storage working, Xbox 360 controller works though?

Hi all,
Been having a lot of difficulty with this.
I've read and followed instructions regarding this but am totally stuck.
I have a USB Y cable to provide power (like the top picture in this thread: http://forum.xda-developers.com/nexus-4/orig-development/usb-otg-externally-powered-usb-otg-t2181820), and have also got the following:
Running Android 4.2.2 (Cyanogen Mod 10.1.2), but have also tried Android 4.3 and 4.0.1
Matr1x kernel (says it should have USB OTG support)
USB Host Controller 0.44 app
Unfortunately I'm not allowed to post an outside link as I don't have enough posts, but I've taken screenshots of the USB Host Controller pages, and nothing suggests it wouldn't work:
dropbox.com/sc/ybg5l9zo44fkrue/kZhNN5oFFe
Connecting a Microsoft Xbox 360 controller shows up in the connected devices section fine, but trying a USB stick doesn't work.
I've tried 4GB, 8GB, 64GB sticks that I have, none of which show up, or even have their lights come on.
I've also tried FAT 32, NTFS and exFAT, none of which work...
Does anyone have any ideas..? I'm totally out...
Greatly appreciate any help!

Anyone..?

scorpii said:
Anyone..?
Click to expand...
Click to collapse
Can you tell me what terminal of the cable goes where?

smit.sanghavi said:
Can you tell me what terminal of the cable goes where?
Click to expand...
Click to collapse
I have the cable from the charger/PC going into the female micro usb of the Y cable
USB device plugs into the female full sized USB on the Y cable
Male micro USB of the Y cable goes into phone
Thanks!

Anyone else have any ideas..?

[WORKING][USBOTG][STOCK] - Atrix 2 USB OTG Host Mode and USB Accessory acquisition

04/11/2014 - 01:41AM - Central Time
USB OTG does work on the Motorola Atrix 2.
I post this because there are no defining topics listing all the requirements and caveats of making this work currently as of the date. Just alot of help topics to sift through. I got a little obsessive in my search to make this work so this is pretty much a knowledge dump.
Started from original help threads here on the forums (various many... lots), figured things out from there through conversations with Chainfire. Ultimitely fixed with lots of research and use of his USB Host Diagnostics App.
Requirements:
Motorola Atrix 2 Stock 4.0.4 - Rooted [stock kernel as well]
(what drove me insane on this was that in USB HOST Diagnostics App it showed kernel support, and API support up to Device detected)
USB OTG Y cable, usb 2.0 (I was concerned about this in the beginning however mine appears to be usb 2.0, got it off amazon.)
(Through research it concerned me that a usb 3.0 would not work. Have not tested this)
USB Drive, usb 2.0
- Tested with a Sandisk Cruzer Micro 1gb
(I assume others will work although there have been some help topics mentioning problems with certain usb drives)
[NOTE]
Must be formatted fat32 - I have noticed a few threads I researched mentioning exfat is not supported for certain devices
(have not confirmed as of post date if exfat is supported for Atrix 2 Stock)
[NEEDED] For USB Host AutoMount
Usb 2.0 Hub (I have an old one i cut apart originally. Dont remember the make, and I lost the housing for it, but hey it works)
---------------
USB Host Diagnostics App by Chainfire
(v1.3 as of post date)
Get it at Play Store [link]
Click to expand...
Click to collapse
Instructions (i.e. my exact process)
I came from testing a multitude of custom roms. None of them worked. I have a help thread on it here. Unconfirmed if any of them work at all I had no success. If you are wondering the post thread is here.
- Flash to stock ICS 4.0.4 (if you are not already)
- Root the Atrix 2
Not sure if the relevant (but this is the exact process I took)
-Install BMM
-Installed Busybox (1.22.1)
-Installed USB Host Diagnostics App
(get your host cable and usb drive ready)
-Ran the app
(Follow the instructions it will ask you at the end if you wish to attempt to fix the issue)
- Say yes to try to fix it.
- Follow instructions (go for a reboot)
- Open up usb diagnostics app.
- Run again to confirm
Congrats!
Click to expand...
Click to collapse
This will not make it automount.
- You do not need a separate program to do this.
Grab your USB hub, plug the USB Drive into the hub and plug it in. To my surprise it automounted.
Chainfire had mentioned checking out a certain file when I was trying to find custom roms that would work. The file was there but they did not work. I gather that file was added by his program and made it work on stock ICS 4.0.4.
There are alot of other threads for other devices. Samsung requires shorting the last 2 pins on the USB connection. This is not needed for Motorola, but keep this in mind if you are randomly searching for USB OTG answers.
---------------
Thanks: Chainfire
Couldn't have figured this out without his help. I highly recommend his apps, he definitely has a deep knowledge of the android system.
Hopefully that should clear things up a bit for anyone searching for the Atrix 2 USB OTG help. I'm moving on to hopefully port from ICS USB OTG host features to a custom rom like Cyanogen. Ill update a link if I come up with anything.

Hello, maybe someone can guide me for final results and find solution. My plans was watch Tv on lapdock 500pro, after i find dvb-t reciever for android. the model was ]CSL - mini DVB-T Stick (from amazon)
requriments of device informs that phone needs android 4.0 or high, dual core cpu (neon support) and usb otg
i have atrix2 mb865 with stock 4.0.4 +root and text inside /proc/cpuinfo returns - "Features: swp half thumb fatmult vfp edsp neon vfpv3"
last one what i need must be usb otg support, so after i get device i connect it direct to microusb and run installed Air Dtv app, it returns "Device not found" then i find this topic and install Busybox and USB Host Diagnostics and run app. I rush to make it quickly so when start diagnostics app asks me connect usb device but i have no any usb device and otg cable also. so i just plug charge cable in lapdock`s usb and connect it to phone, app little think then ask me to Fix usb otg support and after ask to reboot system. After reboot i try again connect directly that device but app again returns "Device not found" - then i check topic again and start to build otg cable.
After cable was complete i check it by connecting to external power (wall adaptor) then i have results.I run USB Host Diagnostics, start test connect device by otg cable, and app returns me (see pic)
Also, when i connect device by otg cable now system popup "By which programm you want use device" and give choice to Air Dtv or Idtv Mobile, 2 apps. But Air Dtv returns me "Device initialisation failed, unplug device and connect after few seconds" another app cant find device also. (see pic)
Also i install Usb Device info app, and able to see connected device info, system shows me that stick is connected to phone. (see pic)
Also i able to mount usb stick to phone by otg cable with external power, and can view files in it. Means i suggest that otg cable and otg in system works
My final point was view Tv on lapdock but at this step i cant run it on phone, Air Dtv also returns me "device not found" when i try to connect it to lapdock by microusb female - usb male extension (included in package of Tv stick)
Also that device works on pc, i install windows software and check it. Mean stick works and shows tv channels. can be for sure that device works
Hope for your help and support!

That solves my problem sort of, I'm going to try to install NUMA and see what results I get. Ill update my post once I'm done

anybody tries Usb otg

Hi, has anybody tried usb otg used with other usb type c phones.
I am wanting to know If anybody has transferred data between usbtype c hard drive and the Honor 8 phone without the need of laptop don't want to buy another hard drive but with type c if it won't work with the phone.
I have no clue why it won't work maybe Honor not put software in for it but just want to see if any body done it if so is it easy what's transfer speed like ..
Etc..
Thanks guys

Yeah,
I had a USB Type-C Male to USB 3.0 Type-A female adapter. Plugged in a USB 3.0 Toshiba Hard Drive and it worked. Notification popped up and I was able to use it in the built in file manager.
Works very well and is very fast as well.

That's good, official support of otg

Muhdol said:
Yeah,
I had a USB Type-C Male to USB 3.0 Type-A female adapter. Plugged in a USB 3.0 Toshiba Hard Drive and it worked. Notification popped up and I was able to use it in the built in file manager.
Works very well and is very fast as well.
Click to expand...
Click to collapse
1. Didn't work for me
2. What theme is that?

kingkea said:
1. Didn't work for me
2. What theme is that?
Click to expand...
Click to collapse
It's called Material VUi , it's available on the Honor 8's XDA forums under themes.
http://forum.xda-developers.com/honor-8/themes/theme-material-vui-material-design-t3441165
Link to the thread.

Otg works for me plus microsd, awesome

I don't find my self using otg if I had sd card expansion

Honor 8 supports USB OTG.
Refer the document given for further reference on its usage.
Official Honor 8 USB OTG Document Link - https://community.hihonor.com/docs/DOC-1613

Here are some steps you can take to transfer files from your phone to an external device or microSD.
Connect a USB OTG cable to your phone to access data on USB flash drives, card readers and other storage devices.
- Connect your phone to a USB flash drive with a USB OTG cable.
- Touch [click to enlarge] > Local > USB drive to browse data on the flash drive. You can select and copy data to a destination folder. For more information, see Copying, moving, or deleting files.
- When you have finished browsing, touch Settings > Advanced settings > Memory & storage > USB drive > Eject.
Disconnect the USB OTG cable from your phone and the USB flash drive. (NS)

Stock ROM (not rooted): Huawei built-in Files works very well for OTG USB flash drives. However, if you have X-Plore File Manager installed, do NOT accept the message as shown (see he attached), otherwise USB drive will disappear and neither the Huawei's Files nor X-Plore would be able to access the USB drive. If you ignore that message or "Cancel" it, X-Plore would be able to read USB drive but not write to it.

The same here
I wonder if there is any relation between emui5 "android" and the service activation