OTG W/Hub? - Kindle Fire Accessories

So, I'm in the process of making a OTG cable, And I was wondering if anyone here has tried to make one with more than one USB input. (aka Hub)

Starzie said:
So, I'm in the process of making a OTG cable, And I was wondering if anyone here has tried to make one with more than one USB input. (aka Hub)
Click to expand...
Click to collapse
You're making an OTG cable?
http://www.amazon.com/Micro-USB-OTG-2-0-Adapter/dp/B005QX7KYU/ref=pd_cp_cps_1

veeman said:
You're making an OTG cable?
http://www.amazon.com/Micro-USB-OTG-2-0-Adapter/dp/B005QX7KYU/ref=pd_cp_cps_1
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They take over a month to ship to the US, I have 2 on the way.
But, I kind of need one quicker, So I figured I'd make one myself.
http://tech2.in.com/how-to/accessor...sb-otg-cable-for-an-android-smartphone/319982 tells you how step-by-step.

You can easily burn out your usb port. I know what i'm talking about I also couldnt wait couple of weeks... It's not worth the risk, especially because OTG cable costs just few bucks.

Related

USB to Go

Hello,
can somebody make this work on the Desire?
Would be awesome
http://sven.killig.de/android/N1/2.2/usb_host/
I can probably do it, just need a cable to test with, maybe over the weekend.
does this work so the desire can read usb flash drives?
lambrospower said:
does this work so the desire can read usb flash drives?
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Click to collapse
Did you watch the vid?
deovferreira said:
I can probably do it, just need a cable to test with, maybe over the weekend.
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Click to collapse
You are awesome.
yeah, it would be possible to attach any USB device (like on your pc) to the Phone (USB Flash Drive, Keyboard, Mouse, ......... )
cables
I could only find cables in china has anyone seen any for sale in the uk ?
you can make the micro USB to USB 'A' cable with a few bits and a soldering iron or some electrical tape. They seem to be scarce over here so thats what i plan on doing.
i have a "female - female" USB Cable here. if i plug this in my normal micro USB-Cable will this work?
Desire -> Micro-USB-Cable -> Female - Female-USB-Cable -> USB-Keyboard
I ordered from the ebay guy he adivised on his site
@kingchris
Nah this wont work. The reason he uses the powered hub and the special power cable is because the phone itself doesnt give out 5v like a normal USB port so devices are having to steal it from elsewhere.
So with your keyboard setup, the data lines will be connected but it will have no power.
so a normal Micro-USB cable to a USB-HUB and then to the keyboard?
kingchris said:
so a normal Micro-USB cable to a USB-HUB and then to the keyboard?
Click to expand...
Click to collapse
Dont know if you even need the hub. Its the special dual ended power cable you need. Just need some way to pump 5v down towards the keyboard. *i think*
http://www.span.com/product_info.php?products_id=22810
Here a link to a company selling the power cable. Based in Surrey.
i think it will work if you don't plugin as much devices as the guy in the video.
you can use one of these to convert your existing Charging Cable to a Female Port
Amazon.de
or
Amazon.co.uk
Edit: kay, not sure if the gender changer is all you need

USB host cable for $5 on Amazon with Prime (works)

So, this works:
http://www.amazon.com/gp/product/B005FUNYSA/ref=oh_o00_s00_i00_details
However, it doesn't work for everything. A mouse works, but a USB Flash Drive doesn't seem to work, nor does another USB device that does work on the Acer A500 Android tablet I have.
So... Yeah. Just thought you guys would wanna know. I'll look into more devices. I know Honeycomb supported all kinds of USB devices (hub, flash drive, mouse, keyboard) so I'm a little surprised the flash drive didn't work. I'll let you know if I find anything else out. Might just be a driver issue we can work out with custom ROMS. Obviously the communications is working since the mouse works. It could be a power draw issue. I have a USB power meter and the mouse draws 20ma. The flash drive that doesn't work draws 60ma.
-Taylor
UPDATE: Works great with a device we are developing at work (basically a USB hub and FTDI chip combo board if that means anything to ya). It draws about 62ma, so the flash drive issue must not be due to power draw.
UPDATE 2: Rooted users can easily mount flash drives using the app StickMount in the market - its very clean and works well! Thanks to user [esoomenona] for the suggestion.
For who lives outside the USA, buy this with international free shipping: http://www.dealextreme.com/p/usb-fe...a-cable-for-samsung-i9100-galaxy-s2-5cm-67186
The only cons is that can take a while to arrive.
Would something like This work?
TweakMyDevice said:
Would something like This work?
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http://www.dealextreme.com/p/micro-usb-on-the-go-host-otg-adapter-pair-50774
Do you get a cursor if you plug in a mouse?
Thank you I was looking for something like this. Finding the right cable on Amazon is like a needle in a hay stack.
For $5 i'll give it a try. Thanks!
TweakMyDevice said:
Would something like This work?
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Actually it looks like no. One of the reviews points out its not a USB OTG (On the go) adapter. USB On the go is a USB port that can act either as a device (plug it into your computer) or as a host (plug in a mouse, etc). In order to tell the phone which mode to be in, USB OTG connectors need to have one of the pins hooked up to ground. Unfortunately not all of these adapters do (I have no idea what they're good for if they don't) and it looks like that one doesn't. But someone linked to the one on DealExtreme that might work.
wonshikee said:
Do you get a cursor if you plug in a mouse?
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Sure do! Its pretty nifty.
Pacifik said:
Thank you I was looking for something like this. Finding the right cable on Amazon is like a needle in a hay stack.
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Click to collapse
Eh I just found a cheap one that looked ok and said it worked with some Samsung devices. I'm also happy its right angle, as its more pocketable. But glad to help!
-Taylor
http://www.amazon.com/Micro-USB-OTG-2-0-Adapter/dp/B005QX7KYU/ref=pd_cp_cps_1
Here's a cheaper one.
I would prefer this over a one piece, as I am worried about bending the micro usb port.
wonshikee said:
http://www.amazon.com/Micro-USB-OTG-2-0-Adapter/dp/B005QX7KYU/ref=pd_cp_cps_1
Here's a cheaper one.
I would prefer this over a one piece, as I am worried about bending the micro usb port.
Click to expand...
Click to collapse
Cool. Not Amazon Prime though. Its got free shipping but it would probably take a while. I ordered mine friday and got it yesterday (monday).
wonshikee said:
http://www.amazon.com/Micro-USB-OTG-2-0-Adapter/dp/B005QX7KYU/ref=pd_cp_cps_1
Here's a cheaper one.
I would prefer this over a one piece, as I am worried about bending the micro usb port.
Click to expand...
Click to collapse
Shoot, I paid a little over four bucks for that same one from the same company, on Newegg. I should've looked at Amazon as well. Oh well...
Okay, so I received the cable I stated above, and tried to plug in a microSD card via USB adapter, and it didn't work. After a bit of googling, I've come to think of two options for why it doesn't:
1. The cable doesn't work
2. The OS doesn't seem to mount them automatically. I found an app called StickMount on the Market, but it requires root, and I haven't rooted yet.
Anyone know anything about this?
esoomenona said:
Okay, so I received the cable I stated above, and tried to plug in a microSD card via USB adapter, and it didn't work. After a bit of googling, I've come to think of two options for why it doesn't:
1. The cable doesn't work
2. The OS doesn't seem to mount them automatically. I found an app called StickMount on the Market, but it requires root, and I haven't rooted yet.
Anyone know anything about this?
Click to expand...
Click to collapse
Well I mentioned in the first post that USB flash drives don't work. A card reader is going to have the same issue, as they're basically the same. I think its related to the phone not having its own microSD card, and so it lacks the drivers to mount storage properly. Which still seems silly to me if the device has USB host support, they should include those things!
Plug in a mouse. If a mouse works, the cable is fine.
esoomenona said:
Okay, so I received the cable I stated above, and tried to plug in a microSD card via USB adapter, and it didn't work. After a bit of googling, I've come to think of two options for why it doesn't:
1. The cable doesn't work
2. The OS doesn't seem to mount them automatically. I found an app called StickMount on the Market, but it requires root, and I haven't rooted yet.
Anyone know anything about this?
Click to expand...
Click to collapse
I honestly think this is going to be it...because of internal storage it doesn't come with the native ability to detect external storage. I'd imagine that app would allow it or that it'll get pushed out as an update down the road...maybe a MOD will get made too if it takes too long.
Either way, when mine comes *crosses fingers for tomorrow* I'll be rooting and post back the results.
Oh damn, StickMount works! Plug in a USB drive and stickmount will pop up asking to run. Then it mounts the drive and my file browser sees it. Then you unmount the drive before unplugging. Wish it was native but this is pretty damn simple. Thanks for finding it!
I was a bit skeptical since the USB drive doesn't even light up when you first plug it in, but once you run stickmount its all good!
Go ahead and root that thing! Just note rooting will erase the phone, so back up first!
I had a Micro USB to USB female for my Nook Color for UBS host. Tried it. Worked like a charm. It even drew enough to power a hub, the keyboard, and the mouse. I was shocked. Im going to but a splitter and use a MHL out to HDMI for 1080 goodness.
Got mine on Amazon for $1.46. Works well (I just wish it was a cable and not a plug though(.
I'll have to see how this works out, ordered the cable.
I have an externally powered USB hub that I can plug into the USB OTG cable.
This is great, I've been looking for these cables. Thanks!
Edit: Does anyone have any idea if you can use an MHL adapter for HDMI at the same time as one of these? I see that some MHL adapters have charging ports, but I don't know if they support data.
nosit1 said:
Im going to buy a splitter and use a MHL out to HDMI for 1080 goodness.
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Using MHL through a splitter won't work based on how MHL works. You either get USB or MHL. MHL does not use USB-compatible signaling.
Alright, I typed this with a mouse and it's slow, but cool. Guess it's time to root. See you on the other side.
Sent from my Galaxy Nexus using xda premium

How to make OTG work?

I bought a micro usb to female usb adapter and I've tried using Faux's kernal, Da_G's .42 kernel and Bullet 2.9 but plugging in the adapter with any usb does not seem to work.. is there any app I need or like how do I verify that it works?
SGS2X said:
I bought a micro usb to female usb adapter and I've tried using Faux's kernal, Da_G's .42 kernel and Bullet 2.9 but plugging in the adapter with any usb does not seem to work.. is there any app I need or like how do I verify that it works?
Click to expand...
Click to collapse
Nope it should work right away. What are you trying to connect? Also, it's possible that it's a bad adapter.
Sent from my SGH-T989 using xda premium
SGS2X said:
I bought a micro usb to female usb adapter and I've tried using Faux's kernal, Da_G's .42 kernel and Bullet 2.9 but plugging in the adapter with any usb does not seem to work.. is there any app I need or like how do I verify that it works?
Click to expand...
Click to collapse
YOU NEED AN ACTUAL OTG CABLE, NOT JUST AN ADAPTER.
Yes all caps, this has been stated time and time again, some people have had luck with the i9100 cables , some have not, you need a cable that works with either the t989 or Hercules, but, I have tested one that was made for the Xoom and it worked as well ...
Well I bought it online and I'm assuming it was made for OTG because what else could you possibly use one for? idk maybe there's another use for it but I can't think of one.
I read something online about shorting the 4 pin to 5 or something, could that work?
And I've tried connecting 3 different flash drives
SGS2X said:
Well I bought it online and I'm assuming it was made for OTG because what else could you possibly use one for? idk maybe there's another use for it but I can't think of one.
I read something online about shorting the 4 pin to 5 or something, could that work?
And I've tried connecting 3 different flash drives
Click to expand...
Click to collapse
Yes that could work, that is usually what a OTG cable does, but depends on the phone, the regular adapters are used, to use an Mini USB cable/charger on a Micro port , I use them all the time, because I have dozens of older chargers ....
Ok so I ripped open the adapter and the build quality was too good so I had to just rip the heads off lol so now I have a micro usb end with no wires connected and a female usb with no wires on it. Can I take 5 thin wires and connect the appropriate pins on the micro usb end to the corresponding pins on the female one?
If anyone has a guide to do this, it'd be appreciated
SGS2X said:
Ok so I ripped open the adapter and the build quality was too good so I had to just rip the heads off lol so now I have a micro usb end with no wires connected and a female usb with no wires on it. Can I take 5 thin wires and connect the appropriate pins on the micro usb end to the corresponding pins on the female one?
If anyone has a guide to do this, it'd be appreciated
Click to expand...
Click to collapse
Google is your friend ... https://www.google.com/#sclient=psy....,cf.osb&fp=1a6a6fc03027a1ea&biw=1597&bih=837
tcboo said:
Google is your friend ... https://www.google.com/#sclient=psy....,cf.osb&fp=1a6a6fc03027a1ea&biw=1597&bih=837
Click to expand...
Click to collapse
Thanks I tried working it for about half an hour but i couldn't get it to work. I'll just have to order one that is specifically for OTG.
Just as a reference for other noobs like me, the wire MUST be otg for it to work
SGS2X said:
Thanks I tried working it for about half an hour but i couldn't get it to work. I'll just have to order one that is specifically for OTG.
Just as a reference for other noobs like me, the wire MUST be otg for it to work
Click to expand...
Click to collapse
Take a look at Deal Extreme. I got a pair there for $3 including shipping!
Sent from my SGH-T989 using xda premium

OTG+MHL? Maybe (anyone taken an MHL adapter (or 11pin to 5pin converter) apart yet?)

so, anyone taken apart an MHL adapter yet?
i have a sneaking suspicion, that the move to an 11 pin is what will allow BOTH OTG, and MHL at the same time, but i could be wrong.
look inside your USB port on the bottom of the S3...
whatya see?
the normal 5 pins on the USB part.. but what is that in back wall? THE OTHER 6 PINS!
yep, that is why you cannot plug the MHL adapter into a hub or anything.. there is 6 pins are missing.
Now, i am wondering:
has anyone taken it apart to see if the 6 pins are used alone, or if it uses the the USB also?
if it uses only the 6 pins for MHL-ness, then it should more than possible to make an OTG/MHL adapter/dock.
more thought says, if my theory is right, an 11 pin to 5 pin conveter may be the key.. and an otg can be spliced in to give 2 outputs: MHL in one (using an s2 MHL adapter) and OTG in the other.....
anyone wanna tear their adapter up? or are you guys gonna make me spend some money?
I ran across this post looking to see if anyone has done this yet. I am going to try to grab the 5 to 11 tomorrow and tear it apart (since it's the cheaper adapter). My plan was to rip it apart and if the original 5 pins are available, splice just as you mentioned.
I can't find a decent picture of the microUSB plug to see if all pins are there.
Also I found this:
http://homixtech.en.alibaba.com/pro...Galaxy_S3_11pin_To_Micro_USB_5pin_Gender.html
Which makes me think 11 pin microUSB plugs that work are available out there somewhere.
cmbg78 said:
I ran across this post looking to see if anyone has done this yet. I am going to try to grab the 5 to 11 tomorrow and tear it apart (since it's the cheaper adapter). My plan was to rip it apart and if the original 5 pins are available, splice just as you mentioned.
I can't find a decent picture of the microUSB plug to see if all pins are there.
Also I found this:
http://homixtech.en.alibaba.com/pro...Galaxy_S3_11pin_To_Micro_USB_5pin_Gender.html
Which makes me think 11 pin microUSB plugs that work are available out there somewhere.
Click to expand...
Click to collapse
I wait with baited breath... i REALLY think this is what is going on.
cmbg78 said:
I ran across this post looking to see if anyone has done this yet. I am going to try to grab the 5 to 11 tomorrow and tear it apart (since it's the cheaper adapter). My plan was to rip it apart and if the original 5 pins are available, splice just as you mentioned.
I can't find a decent picture of the microUSB plug to see if all pins are there.
Also I found this:
http://homixtech.en.alibaba.com/pro...Galaxy_S3_11pin_To_Micro_USB_5pin_Gender.html
Which makes me think 11 pin microUSB plugs that work are available out there somewhere.
Click to expand...
Click to collapse
So, did you do this experiment? Has anybody found a way to get access to all of the pins and make OTG work with MHL?
I've been waiting for two months for an answer about this. I'm glad someone started a thread. I kind of have this hesitation to start new threads.
I would love it if this could be integrated with the seidio active dock.
Sent from my SPH-L710 using xda app-developers app
nightwinn said:
I've been waiting for two months for an answer about this. I'm glad someone started a thread. I kind of have this hesitation to start new threads.
I would love it if this could be integrated with the seidio active dock.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I decided to take the plunge.... and have ordered a part to slice open. will update.
scarrmrcc said:
I decided to take the plunge.... and have ordered a part to slice open. will update.
Click to expand...
Click to collapse
Thanks bro!, Ive been searching for the answer to this awhile as well.. I wonder not many people have brought this up. Ideally I would love to use my S3 as a "PC".
Check this out: http://www.gottabemobile.com/2012/06/29/galaxy-s-iii-new-mhl-connector-also-enables-usb-on-go/
Edit: On another thread someone posted that they connected the USB OTG cable to the Micro USB port on the MHL adapter with no luck..hmm
romulusram said:
Thanks bro!, Ive been searching for the answer to this awhile as well.. I wonder not many people have brought this up. Ideally I would love to use my S3 as a "PC".
Check this out: http://www.gottabemobile.com/2012/06/29/galaxy-s-iii-new-mhl-connector-also-enables-usb-on-go/
Edit: On another thread someone posted that they connected the USB OTG cable to the Micro USB port on the MHL adapter with no luck..hmm
Click to expand...
Click to collapse
meh, I think that is wrong. many people have done exactly what it says you can do, and it doesn't work.
Makes me wonder if the boys at Samsung made a press mistake. If indeed you can't use both with the correct cable, then why make a port with 11 pins? Seems a waste of resources to me.
nightwinn said:
Makes me wonder if the boys at Samsung made a press mistake. If indeed you can't use both with the correct cable, then why make a port with 11 pins? Seems a waste of resources to me.
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I have never seen anything from samsung saying that MHL and OTG was possible.. just speculation in websites.
It better be possible because if not all Samsung's managed to do is make us buy hugely overpriced new MHL cables when they could have kept the old type, but I guess Samsung's made some decent money giving people no option but to buy £30 MHL cables.
I hope Monoprice really is working on a cable. 35-40 USD is more than I want to pay, especially if I get a couple and/or an HDMI dock.
Geordie Lad said:
It better be possible because if not all Samsung's managed to do is make us buy hugely overpriced new MHL cables when they could have kept the old type, but I guess Samsung's made some decent money giving people no option but to buy £30 MHL cables.
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+1
Sent from my GT-I9300 using XDA
neiliewheeliebin
Both the oem adapters are missing 2 data pins within the plug needed for simultaneous usb connectivity with mhl,I've ordered a Chinese alternative that I'm hoping will have all 11 pins,I'll report back If I have any success
neiliewheeliebin said:
Both the oem adapters are missing 2 data pins within the plug needed for simultaneous usb connectivity with mhl,I've ordered a Chinese alternative that I'm hoping will have all 11 pins,I'll report back If I have any success
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Click to collapse
gracias amigo.
when you get 10 posts, so you can post links, can you come back and post what you got? then I shall order a different one.
we will find the perfect cable.
neiliewheeliebin said:
Both the oem adapters are missing 2 data pins within the plug needed for simultaneous usb connectivity with mhl,I've ordered a Chinese alternative that I'm hoping will have all 11 pins,I'll report back If I have any success
Click to expand...
Click to collapse
Someone needs to find the resistor values first so the phone can use both simultaneously if it's even possible that is.
Geordie Lad said:
Someone needs to find the resistor values first so the phone can use both simultaneously if it's even possible that is.
Click to expand...
Click to collapse
that would be key. I have sent out messages to people that may know, or may be able to find out, but i have not had success.
heck, If it can be done in the terminal (turning on items) i can make a shortcut that would do it.. but i have had no success with that either.
It's not possible I think.
You can use an MHL enabled tv wich powers MHL, (so you don't need the adapter) but how do you want to split that?
You can split the cables from the samsung adapter, so you have the MHL ones(6) and the usb ones(5).
But what then?
You need to connect the MHL ones to an hdmi cable, and connect it with an MHL enabled tv. And the usb ones to an usb port for OTG.
But will that even work with this S3?, because it is designed to get power from your charger via the extra usb port on the adapter.
Maybe it only works with the adapter, and not even with an MHl enabled tv...
I think somebody needs to connect the S3 to an MHL enabled tv, if that works you can modify the adapter and use the usb as OTG.
Send from my GT-I9300 with Tapatalk
Jeurum_92 said:
Values are already figured out, but both MHL and usb output at the same time is not possible I think.
You can use an MHL enabled tv wich powers MHL, (so you don't need the adapter) but how do you want to split that?
You can split the cables from the samsung adapter, so you have the MHL ones(6) and the usb ones(5).
But what then?
You need to connect the MHL ones to an hdmi cable, and connect it with an MHL enabled tv. And the usb ones to an usb port for OTG.
But will that even work with this S3?, because it is designed to get power from your charger via the extra usb port on the adapter.
Maybe it only works with the adapter, and not even with an MHl enabled tv...
I think somebody needs to connect the S3 to an MHL enabled tv, if that works you can modify the adapter and use the usb as OTG.
Send from my GT-I9300 with Tapatalk
Click to expand...
Click to collapse
I found (and shared) the MHL value, and we already know the OTG value.. but it only seems logical there is ANOTHER value to activate both at the same time. we are postulating, the the reasoning behind the 11 pin, is to allow both. If adding just an OTG cable turned on MHL too, it would cause issues without an MHL connection. and the same with MHL activating OTG, without an OTG device connected. like i said, this is postulation at the moment, but there SHOULD be a thrid value to enable both at the same time. that value would be used by a future peice of hardware that does a whole "PC MODE".
and if it does not exist, it CAN be done, we just need more "stuff" a way to enable a special switch if you will.
some people are saying you can connect straight to an MHL enabled TV, but that has not been done yet (and since there are no 11 pin MHL cables, that are not adapters, it seem unlikell that anyone will until said cable exists. the S3 cannot send MHL signal over the usb part, it has to be either the extra 6 pins, or with the 11 to 5 pin adapter.)
essentially, the pins are there, and with some special software, or a hidden resistor value as to yet, unfound, and some custom hardware (as of now NOTHING 11 pin, has 11 pins in it) it SHOULD be possible.
but there is nothing that has been found (hardware wise) that is even modifyable to work.... yet.
What I don't understand, why does MHL only work with the power connected?
They could easily make an MHL cable with the 11 pin, and hdmi. That should work for only MHL.
Only no go I can think is that MHL drains your battery because of always having your screen on, and the MHL output.
So they decided to use the adapter with power, otherwise you can't use MHL feature very long before your battery is empty
I think inside the adapter they only use the pins for giving power, and not the full 5 pin support for OTG, and therefore OTG doesn't work when you want to connect something.
Inside the ROM they have maybe build in something that MHL will only work when power is connected.
Maybe the solution is very simple,modify the adapter so full 5 pins are connected.

[Q] 11 Pin MHL + USB OTG

Hey folks, im crossposting this, as i believe it didnt get the attention it'd have had i posted this in the accessories forum in the first place
http://forum.xda-developers.com/newreply.php?do=newreply&p=30249692
dennisfisch said:
Hey there, i have tried gathering information about this subject and it seems all threads always lead to this announcement:
http://www.gottabemobile.com/2012/06/29/galaxy-s-iii-new-mhl-connector-also-enables-usb-on-go/
Short: Samsung have changed to an 11 Pin-out to enable USB OTG and MHL Hdmi out at the same time. I purchased an original HDTV Adapter (EPL-3FHUBEGSTD) which as far as i can reliably count indeed has about 11 connectors inside the USB connector that goes into the phone.
Now, i can get HDMI out just fine, but ONLY when i also connect the MHL adapter to a power source (a PC USB Port will do fine), however i have also read, that the phone is able to power the MHL adapter itself but obviously would not be charged then (no surprises there). This does not work however.
Further, connecting a USB OTG cable to the micro usb port on the MHL adapter does nothing. No notification and no devices connecting. No power either, since the LED on my USB Hub does not light up as it should. Connecting any devices to the hub does nothing to change that situation. If i leave out the MHL adapter and connect the USB OTG cable directly to the phone, everything works perfectly. I have tried this with 2 different OTG cables so they are not the problem.
This is an original genuine HDTV Adapter for our phones, which according to that post should be working fine with USB OTG.
AFAIK, this topic --does-- come up more frequently now as i can find a few more discussions about it, albeit none really helpful:
http://android.stackexchange.com/qu...-of-11-pin-mhl-connector-in-samsung-galaxy-s3
http://forum.xda-developers.com/showthread.php?t=1743128
http://forum.xda-developers.com/showthread.php?t=1803079
http://en.wikipedia.org/wiki/Mobile_High-Definition_Link#11-pin_MHL-USB_Connector
http://forum.xda-developers.com/showthread.php?t=1811435
That wiki entry is the most interesting link as it definitely states that using MHL and USB OTG simultaneously is possible and is also the reason why the 5 pin layout was changed to an 11 Pin layout.
Looking forward to reading your replies!
Click to expand...
Click to collapse
Still waiting for USB OTG and MHL at same time. And while I'm thinking about it, I want it all in a dock compatible with my seidio active case. How's that for wishful thinking?
Sent from my SPH-L710 using xda app-developers app
nightwinn said:
Still waiting for USB OTG and MHL at same time. And while I'm thinking about it, I want it all in a dock compatible with my seidio active case. How's that for wishful thinking?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I don't see why you would feel the need to ridicule me for bringing up this thread. it's not wishful thinking, seeing as even the wikipedia entry on MHL clearly states it should be possible. There is also a blog entry on the exact same topic and even the movement to boycott samsung accessories have stopped because of this: http://www.galaxymhl.com/
I don't really understand why people aren't looking into this more.
I'm not ridiculing you. I want the same thing. What I said was my legitimate wish list. I haven't bought the mhl adapter because I'm holding out for an all in one solution. I'm still waiting on Samsung to give us a product that does mhl and otg simultaneously.
nightwinn said:
I'm not ridiculing you. I want the same thing. What I said was my legitimate wish list. I haven't bought the mhl adapter because I'm holding out for an all in one solution. I'm still waiting on Samsung to give us a product that does mhl and otg simultaneously.
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I'm sorry, i must have gotten that wrong. I find it very confusing Samsung do no release enough information on this in order to make it work. Neither the phone documentation, nor the official 11-Pin HDTV Adapter manual mention this in any way.
I'm waiting also for a dock with MHL+USB OTG at the same time by Samsung, I dont understand why the official MHL adapter does not support this already but I've been searching and I have not found yet any example of both working together. It clearly seems that the MHL 11 pins cable we can buy right now does not support this since nobody has tested it succesfully but what I don't know is if that is related to Hardware or it also has something to do with software. I read a couple of weeks ago that Google was thinking about using the phone as a PC via docking, I think the idea comes from Motorola? So maybe the availability of both connections at the same time is also related with android, who knows, maybe in JB it will be possible...Has somebody tested MHL+USB OTG in JB with the official adapter?
Tularis said:
I'm waiting also for a dock with MHL+USB OTG at the same time by Samsung, I dont understand why the official MHL adapter does not support this already but I've been searching and I have not found yet any example of both working together. It clearly seems that the MHL 11 pins cable we can buy right now does not support this since nobody has tested it succesfully but what I don't know is if that is related to Hardware or it also has something to do with software. I read a couple of weeks ago that Google was thinking about using the phone as a PC via docking, I think the idea comes from Motorola? So maybe the availability of both connections at the same time is also related with android, who knows, maybe in JB it will be possible...Has somebody tested MHL+USB OTG in JB with the official adapter?
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As soon as i get home, i will try flashing this rom: http://forum.xda-developers.com/showthread.php?t=1695562
It comes with the latest stock kernel and appearently won't boot with anything else so Samsung must have made some changes to it. In a few hours time I'll be back with information on how that worked out.
I can confirm it NOT working on Jelly Bean. The MHL adapter does provide video HDMI output, but only as long as it is plugged into an external power source. When connecting an OTG usb cable, there is no reaction at all. There has to be some way of getting the phone to power the HDMI adapter. Do any of you folks have a good link to a kernel dev who can have a look into this? There has to be a MHL modul for the USB driver. Ghokanmoral probably has more insight into this...
Summary: USB OTG and MHL work fine separately, but not simultanously on JB using a standard genuine Samsung EPL-3FHUBEGSTD adaptor.
dennisfisch said:
I can confirm it NOT working on Jelly Bean. The MHL adapter does provide video HDMI output, but only as long as it is plugged into an external power source. When connecting an OTG usb cable, there is no reaction at all. There has to be some way of getting the phone to power the HDMI adapter. Do any of you folks have a good link to a kernel dev who can have a look into this? There has to be a MHL modul for the USB driver. Ghokanmoral probably has more insight into this...
Summary: USB OTG and MHL work fine separately, but not simultanously on JB using a standard genuine Samsung EPL-3FHUBEGSTD adaptor.
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Click to collapse
Thank you for trying, well I dont know what to think now...very bad samsung fot not giving information about it...
Enviado desde mi GT-I9300 usando Tapatalk 2
I have already contacted Ghokanmoral on this and am hoping to gain new insight into this as he is a very active kernel dev.
I'm also crosslinking another thread on this subject: http://forum.xda-developers.com/showthread.php?p=30469240
The final result of this is that USB OTG work with the Samsung dock, but not otherwise...and that is why they changed the pins to 11. For the dock to allow for OTG at the same time as HDMI out. Does everyone agree?
ZenInsight said:
The final result of this is that USB OTG work with the Samsung dock, but not otherwise...and that is why they changed the pins to 11. For the dock to allow for OTG at the same time as HDMI out. Does everyone agree?
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Click to collapse
I don't really know how this is accomplished with the dock, but if it works with the dock, I have to think that the same technique could be used to make it work with other adapters, too. If it's a matter of putting a voltage or a resistance across two pins, that would not be a big deal to do.
It was figured out in the thread that this was split off of.
we already found the resistor value to do it, the wiring.. everything.
Anyone try...
Anyone try a usb Y cable which will inject power over a USB and still allow for a separate device to be attached? I would post a link but i'm noob here. You can find it as "UTStarcom USB Adapter Y Cable"
The HDMI part of the split HAS to be powered...but the USB OTG does not. So...if there was such thing as an 11 pin micro usb Y splitter, then the OTG side would work while the powered MHL adapter was on. Essentially this is what the dock does.
Is it possible to create an 11 pin Y splitter? Someone needs to get one of those docks and tear it apart to see how the leads are split...lol
ZenInsight said:
The HDMI part of the split HAS to be powered...but the USB OTG does not. So...if there was such thing as an 11 pin micro usb Y splitter, then the OTG side would work while the powered MHL adapter was on. Essentially this is what the dock does.
Is it possible to create an 11 pin Y splitter? Someone needs to get one of those docks and tear it apart to see how the leads are split...lol
Click to expand...
Click to collapse
You can also power the dock with a laptop dock from motorola: http://forum.xda-developers.com/showthread.php?p=33825819
scarrmrcc said:
It was figured out in the thread that this was split off of.
we already found the resistor value to do it, the wiring.. everything.
Click to expand...
Click to collapse
Can we have a link?
surferpr said:
Can we have a link?
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Click to collapse
I think it's this one (at least the potential resistor values are on page 3 or 4)
http://forum.xda-developers.com/showthread.php?t=1811435
Sent from my SPH-L710 using Tapatalk 2
hi guys. i was able to make usb otg and mhl work together just like smart dock.
full description is here
http://forum.xda-developers.com/showthread.php?t=2142357

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