Develop Bugs

Micro Usb To Mini USb to Normal USB

I've already ordered the Mine Keyboard and the Adapter to later know that atrix uses a micro USB...
this is the adapter:
http://produto.mercadolivre.com.br/...-conversor-usb-a-fmea-para-mini-usb-macho-_JM
Sure it doesnt fit in atrix. but.. if i buy this?
http://produto.mercadolivre.com.br/...-para-micro-usb-motorola-moto-q11-cpmt018-_JM
and then convert micro to mini then mini to usb normal? would i be able to plug a keyboard? Thanks
or even buy this new one?
http://produto.mercadolivre.com.br/MLB-195555339-conversor-usb-femea-para-micro-usb-_JM

Lordareon said:
I've already ordered the Mine Keyboard and the Adapter to later know that atrix uses a micro USB...
this is the adapter:
http://produto.mercadolivre.com.br/...-conversor-usb-a-fmea-para-mini-usb-macho-_JM
Sure it doesnt fit in atrix. but.. if i buy this?
http://produto.mercadolivre.com.br/...-para-micro-usb-motorola-moto-q11-cpmt018-_JM
and then convert micro to mini then mini to usb normal? would i be able to plug a keyboard? Thanks
or even buy this new one?
http://produto.mercadolivre.com.br/MLB-195555339-conversor-usb-femea-para-micro-usb-_JM
Click to expand...
Click to collapse
you will not be able to plug in a USB peripheral (mouse, keyboard) directly into the phone. it will not work.
you can, however, purchase a +5V powered USB hub (that plugs into the wall), and use that to plug into the phone and plug your KB/mouse into the hub, and it should work. you can find such hubs at www.dealextreme.com
to further answer your question, USB-___USB converters will work as long as the converters have all four lines hooked up. many converters are 'power-only' where only the power/ground lines are connected and the other two lines (data) are not.

So if i buy an ordinary pc hub that connects to power and the plug usb-to-microusb, it will work?

Well let it alone, ill buy a Bluetooth keyboard, will spare time and cables and converters ahahha

The Micro USB plug must be OTG (USB ON THE GO) or your phone won't recognize the peripheral. Also the advice given was correct, the phone USB port can't provide power to a peripheral device and so you must use a powered hub in between the phone and the peripheral device.
A USB OTG has pin 5 and pin 4 tied together in the Micro USB connector end to tell the phone to invoke OTG mode.

Lordareon: yea... if you'd go the wired route, you'd need a powered USB hub, since the Atrix's micro-USB port doesn't work as a host port. It doesn't provide power to external devices.

elementaldragon said:
Lordareon: yea... if you'd go the wired route, you'd need a powered USB hub, since the Atrix's micro-USB port doesn't work as a host port. It doesn't provide power to external devices.
Click to expand...
Click to collapse
already been stated twice.

USB Cardreader Hub

I just ran across this USB Card Reader/Hub for the Samsung Tab. The device has three USB ports and a card reader. It even has a plug for a 5V power supply.
http://www.ebay.com/itm/SAMSUNG-GAL...=Laptop_Adapters_Chargers&hash=item2316d2ac0e
Has anyone tried this thing? Does it perform as advertised? If it does, it may be the perfect accessory, especially when teamed with a power supply. On that subject, I wonder where one might find a compatible power supply that would provide the right amperage so it would work with the Tab.
Bob

^I would like to know also. If it works like it says, that would be the best thing ever!

I asked the company posting the device on eBay if they offered a power supply that would supply 2 amps. They said no.
Here is a question for some of the smart guys on this forum. Could the Tab be powered by a male to male USB cable plugged into the standard Samsung 110 V power plug and then in to the hub? The next question is if everything could be powered using a USB car adaptor that puts out 2 A.
Bob

Bump! Does anyone have experience with this device. If so, please post. Also, if anyone can answer the questions about the the power supply or USB charging from a car outlet, that information would be greatly appreciated.
Bob

I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim

general1977 said:
I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim
Click to expand...
Click to collapse
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?

I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?

iknighty said:
I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?
Click to expand...
Click to collapse
Great, you are just the guy I have been looking for. If you can come up with a male to male USB cable, plug one end into the device and the other into your Samsung charger puck. I am curious if the Tab will charge using this method.
Bob

dsafety said:
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?
Click to expand...
Click to collapse
Well, that depends on the hub. How it is designed. It may block current from flowing into the USB ports.
I have to check mine when I get home...
Mind you, USB current is limited to 0.5A and that isn't enough to charge the Tab and use it at the same time.
But, let me see if I understand what you're trying to do: Connect the 110V adapter to one of the USB ports. Power/charge the Tab through a second port.
As to your earlier question,about a vehicle equipped USB port... Same answer. It depends on how the hub is designed. Since I have Sync in my Ford I have a USB port and I can check that as well. I know the Tab works connected to it... just not a USB hub.

how's the test
so... any result from your test? can it charge the tab?

robobear said:
so... any result from your test? can it charge the tab?
Click to expand...
Click to collapse
I can't find my male/male USB cable. (I live in Alabama, and that sort of thing is against the law. )

Forcing GN to charge in pogo pin dock with USB OTG in use

I have the official Samsung desktop dock for the GN with pogo pins for charging. I cut out a notch in the left side of the dock so that I could access the USB port on the phone when it's docked. I'd hoped I could then attach a USB OTG cable and mount a flash drive while the phone charged via the pogo pins.
Unfortunately, the two functions seem to be mutually exclusive. If the phone is in the dock and charging and I attach the cable and flash drive, they are not recognized by the phone. Or, if I attach the cable and flash drive first and mount the flash drive before placing the phone in the dock, charging doesn't initiate when I put the phone in the dock.
Does anyone know if there is some way via software or hardware to force pogo pin charging while a flash drive is attached and mounted via a USB OTG cable?

I will try tomorrow on my self built car pogo charger and usb otg. I have aokp with the fast charge override feature.

subvertz said:
I will try tomorrow on my self built car pogo charger and usb otg. I have aokp with the fast charge override feature.
Click to expand...
Click to collapse
Sounds great! Thanks much. If it works, it'll tempt me to go to AOKP myself.

Any luck on this?
I too want to use OTG functionality while charging phone in the official car dock.

USB OTG + charging
I'm actually trying to get the same get something like this going on a galaxy s2 (the I9100g with the omap processor) or a GN, My goal is to get usb host and charging going through the same cable. By making some changes in the kernel i've got the phone to think its in charging mode while in host mode, but if you check the battery status, it's still draining even though it says "charging" and I've got the a usb "Y" cable connected to a 5v 2amp power source.
I think cyanogenmod (there was a post on this here and a standalone app that eventually rolled into the latest cm7 nightly) has this working on a BN nook color (also TI-OMAP Processor), but I have not been able to verify this.
Does anybody have host+charing working on any device with an OMAP processor?

Sorry for the delay, I had an emergency work trip offshore on an oil rig. I can try it out tonight.

Results. Charging OTG killed pogo charging. I tried mounting in pogo charger with OTG already attached mounted with a basic thumb drive. Charging never started. I tried charging with pogo first, then plugging in OTG, charging stopped. I checked to make sure it was actually discharging by waiting for a few percent decrease.
Sorry, I was hoping it would work too.

subvertz said:
Results. Charging OTG killed pogo charging. I tried mounting in pogo charger with OTG already attached mounted with a basic thumb drive. Charging never started. I tried charging with pogo first, then plugging in OTG, charging stopped. I checked to make sure it was actually discharging by waiting for a few percent decrease.
Sorry, I was hoping it would work too.
Click to expand...
Click to collapse
Thanks for giving it a try. It would be interesting to know if this behavior is built into the hardware or could be modified via software/in the kernel. It's consistent with what happens when using a powered USB hub.
Other than a software mod, I'd sure like to see someone start making and selling an Accessory Charger Adapter as described in Chapter 6 of the USB Battery Charging Specification document from 2010. It's the exact thing needed to use USB OTG and charge at the same time.

Anyone knows if its possible to charge via USB, with a device connected?
I connect an adapter microUSB to USB OTG, than connect USB OTG in a USB HUB and than i connect a device in one USB and force in another, is it possible or not??

It may work, since connecting to the pc works.

USB OTG cable with charging - is that possible?

While researching ability to use USB DAC while charging the phone in the car I found this video. The guy clearly says that tablet is charging while accessing all those accessories via USB OTG. Similar cables are found on ebay, called "USB OTG with power".
The big question is: would the Galaxy S3 actually charge while using USB DAC at the same time? It should be possible, but I don't have the phone yet (still considering it), nor do I have the cable, nor a USB DAC In theory it should be the same with any accessory - can someone actually confirm either way, whether phone can or can't charge in USB OTG mode with similar cable? This video shows similar setup on Galaxy S (only it's normal OTG cable, USB hub, usb Y-cable and card reader) and it's definitely charging while mounting USB devices! Will S3 do the same?
I fear that upgrading from Galaxy S with voodoo control of Wolfson chip to north-American S3 with worse audio path might not suit me if there's no way to power the phone and use external DAC at the same time in the car... I hope there is a way... I appreciate any advice and opinions.

It's a first time I see such cable...All I read was people saying it's impossible in the first place. Well, hopefully in 2 weeks I'll be able answer your question

midirt said:
While researching ability to use USB DAC while charging the phone in the car I found this video. The guy clearly says that tablet is charging while accessing all those accessories via USB OTG. Similar cables are found on ebay, called "USB OTG with power".
The big question is: would the Galaxy S3 actually charge while using USB DAC at the same time? It should be possible, but I don't have the phone yet (still considering it), nor do I have the cable, nor a USB DAC In theory it should be the same with any accessory - can someone actually confirm either way, whether phone can or can't charge in USB OTG mode with similar cable? This video shows similar setup on Galaxy S (only it's normal OTG cable, USB hub, usb Y-cable and card reader) and it's definitely charging while mounting USB devices! Will S3 do the same?
I fear that upgrading from Galaxy S with voodoo control of Wolfson chip to north-American S3 with worse audio path might not suit me if there's no way to power the phone and use external DAC at the same time in the car... I hope there is a way... I appreciate any advice and opinions.
Click to expand...
Click to collapse
HI. I Got it working on SONY XPERIA S now i will play with GALAXY SII AND SIII , check my siganture and website --> follow me i hope i can help

sonic_boom said:
HI. I Got it working on SONY XPERIA S now i will play with GALAXY SII AND SIII , check my siganture and website --> follow me i hope i can help
Click to expand...
Click to collapse
Looks like it's possible on some devices, but not with Galaxy and Nexus family... But it would be great if you can confirm that, so let me know if you can try it. Thanks.

Finally got the cable.
The result - nope, doesn't charge

Maybe the "Allshare hub" could do what your asking for?

sonic_boom said:
HI. I Got it working on SONY XPERIA S now i will play with GALAXY SII AND SIII , check my siganture and website --> follow me i hope i can help
Click to expand...
Click to collapse
Sonic, any luck with your friends phone? Really looking foward to your results :fingers-crossed:
Do you have part #s for the variable resistors in your samsung post or at least where you got them from? I would be willing to try some things out if I could find the right pieces. What I really want to get my hands on is the MHL adapter that was shown off with that spider laptop at IFA a couple weeks ago..

SUCCESS!!! I can confirm that this USB OTG cable (http://ebayitem.com/190710044655) DOES CHARGE MY GALAXY S3! I plugged in USB cardreader with SD card into the phone through this cable (it lit up and card is fully readable), then plugged USB cable end into PC and phone showed a charging icon! Moreover, after waiting for 5 min. with screen off (cardreader still glowing blue and working) battery has gone up from %72 to %75 (and while I was writing this, to 78%), so it is indeed charging! Yay! It probably won't get up in the car, where just phone alone is "not discharging" at best from the car adapter, but at least it should allow me to listen to music with quality DAC and use navigation without (or with minimal) discharging.
I have not tested it with USB DAC that I intend to use for my car (Behringer UCA222), because I have to go out and buy it. Hopefully it works. Anyway, this cable definitely works with simultaneously charging my north-american Samsung Galaxy S3 (from Bell Canada) while powering USB cardreader!
Somebody else has mentioned that another cable (http://ebayitem.com/120980364117) also worked in his Galaxy S2.

I bought Behringer UCA222 USB DAC and tested it in my car with the USB OTG cable with power that I mentioned. It works great! And the phone is indicating a charge. Sometimes when first playing music after plugging the device it sounds like fast forward for a few seconds (I guess clock rate mismatch or something similar), but after the presumably clock is locked it plays perfectly fine.

midirt said:
SUCCESS!!! ...
Click to expand...
Click to collapse
That is outstanding..gonna order one of these guys right now.
Here is a better link for all the ebay listings. Be aware of the differences, MicroUSB adapters would allow you to use your existing charge cable to plug into it while the standard USB would require you to be very close to the charger or have a USB A-A cable to attach to a power source.
http://www.ebay.com/sch/i.html?_trk...Host+OTG+Cable+++USB+power&_sacat=0&_from=R40

Jeremy.Stewart85 said:
That is outstanding..gonna order one of these guys right now.
Here is a better link for all the ebay listings. Be aware of the differences, MicroUSB adapters would allow you to use your existing charge cable to plug into it while the standard USB would require you to be very close to the charger or have a USB A-A cable to attach to a power source.
http://www.ebay.com/sch/i.html?_trk...Host+OTG+Cable+++USB+power&_sacat=0&_from=R40
Click to expand...
Click to collapse
The problem is that apparently not all of those cable work in terms of charging the phone. People say mostly that it doesn't work. The only guy mentioned success is with the cable I bought, but he then confirmed it with another, more convenient cable. I have the one that needs a USB extension cable to reach the charger, but it's about a buck on ebay, so no problem there. But not all cables work this way: most reportedly will allow you to power USB accessories but not charge the phone.

I found that this configuration works for charging while in USB HOST mode:
S3 -> standard otg cable -> Powered USB2.0 HUB -> devices (keyboard, usb dac, usb hdd...)
The only catch is that the hub must be powered before you plug in the phone or the phone will try to power the hub and will never enter charging mode. I'm using this setup in my car and it works perfectly. As long as I start the car before plugging the phone, we are good to go.
I only confirmed this works with AOKP JB builds. No idea about other roms/kernels. Hopefully this helps someone.

midirt said:
The problem is that apparently not all of those cable work in terms of charging the phone. People say mostly that it doesn't work. The only guy mentioned success is with the cable I bought, but he then confirmed it with another, more convenient cable. I have the one that needs a USB extension cable to reach the charger, but it's about a buck on ebay, so no problem there. But not all cables work this way: most reportedly will allow you to power USB accessories but not charge the phone.
Click to expand...
Click to collapse
I got mine in the mail today (ordered 10/16) and tried it out as soon as I could. I can confirm it charges and allows for OTG at the same time. This is the auction I bought from: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251127542280&ssPageName=ADME:L:eek:U:US:3160

Hello y'all. I'd like to ask your attention to this thread, especially but not limited to sonicboom and others, I really could use some help.

HTC One Extended Charger USB Wire - Unable to charge

Hi Guys
I bought a 3m USB cable wire for the HTC One so I can lie down in bed and use my phone with a longer cable while charging the phone. I noticed it kept saying Unable to charge while in host mode. Why is this? When I plugin the normal original USB wire in to charge the phone it works perfectly.Is the 3m wire not sufficient enough for the HTC One?
Thanks in advance
J4v3d

Hmm, are you plugging it into a wall adapter or a computer's usb port? The host mode thing should only kick in when it tries to act as a host for a usb device such as a flash drive or external hard drive. Assuming that you're using a wall adapter, I would say it would be a defective usb cord as it keeps making the phone enter host mode. Just a sidenote, the phone is unable to charge whenever it is host mode. Hopefully someone else can weigh in on this.

It seems you got a 3m OTG cable, the "unable to charge while in host mode" message shows up when I plug in my OTG cable.
Sent from my HTC One using XDA Premium 4 mobile app

aviola7x7 said:
Hmm, are you plugging it into a wall adapter or a computer's usb port? The host mode thing should only kick in when it tries to act as a host for a usb device such as a flash drive or external hard drive. Assuming that you're using a wall adapter, I would say it would be a defective usb cord as it keeps making the phone enter host mode. Just a sidenote, the phone is unable to charge whenever it is host mode. Hopefully someone else can weigh in on this.
Click to expand...
Click to collapse
In to the wall charger pal. It can't be defective as it works on the PC and is brand new. It charged my phone completely the second time i plugged it in.
lufeig said:
It seems you got a 3m OTG cable, the "unable to charge while in host mode" message shows up when I plug in my OTG cable.
Sent from my HTC One using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I bought this one from eBay pal if it helps. http://www.ebay.co.uk/itm/290737576817?ru=http%3A%2F%2Fwww.ebay.co.uk%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D290737576817%26_rdc%3D1
So any long USB wires like the 3M one is no good for the HTC One?

I've been using my nvidia shield charger and adapter and thats seems to work fine. Also never noticed any issues using my nexus 2012 charger and 2013 charger and with my iphone 5 adapter plug slow charging.