[Q] S2+USBhub+hdmi+charging-what I need? - Galaxy S II Q&A, Help & Troubleshooting

I want to have S2 with usb keyboard, mouse, (probably a pendrive/hdd also), and a hdmi screen connected while charging the battery. My question is, what cables/adapter and usb hubs would I need to achieve the desired configuration?

As far as I know, what you want isn't possible. The MHL/HDMI and USB are mutually exclusive -- they share a connector, and when the MHL/HDMI adapter is plugged in, the connector switches into MHL mode, and the USB data pins are re-purposed.

you can't, maybe a bluetooth mouse/keyboard will solve part of the problem. And maybe you can use a powered hub to use them together, but not with HDMI

The phone differentiate MHL, USB,USB jig, and charging mode (AC vs dc) via resistance between two of the connector pins on the cable. So one mode at a time.
Sent from my GT-I9100 using Tapatalk

Related

[Q] MHL cable compatability?

I just found a MHL cable for the SGS2 on Amazon with Micro-USB to HDMI.
I have a Samsung HDTV bought about a year ago. Now i know that MHL means you can charge as well as view the phone stuff on the screen but MHL TVs have not released yet (i think, and even if they have i wont be getting one anytime soon).
So my question is can i still see the TV out if i use the MHL cable on my older TV? I know it definitely wont charge.
Anyone?? :S
yes you can.
all you need is the adapter from MHL (micro-USB) to HDMI, connect the HDMI to the TV and you are good to go.
the advantage of the original samsung adapter is the ability to connect a power cable to the adaptor and charge the phone while it transmits the picture to the TV.
hope i helped
Thanks mate
For anyone confused, an MHL cable is a Micro USB to HDMI cable - no ifs, no buts, this will transmit HDMI from a compatible MHL port. Nothing else needed (except I believe it must also be connected to power)
Your micro USB port on the bottom of your SGS2 is an MHL/USB port, and will therefore work.
Important to note is that not all micro USB ports are also MHL ports, therefore will not necessarily work on some other micro USB port on a different phone.

[Q] Dual micro USB?

Hi together,
ive asked me if it is possible to use an adapter for 1x micro usb (plug) -> 2x micro usb (jack).
Could the phone handle 2 USB devices at the same time?
Maybe then it is possible to use the HDMI output and the USB host parallel?
For example to use an TV as screen and an HDD as the source for a movie.
This would be nice.
Thanks in advance.
macc
When the connector is used for HDMI I doubt it can be used as USB at the same time, I'n sorry.
Maybe in a few months cyanogenmod provides a hack, if there will be an dual adapter soon.
We will see. Thank you.
macc
The hardware needs to allow this if it'd become possible. You need a really smart USB dongle that knows how to split the HDMI output from the USB output.
Sounds a little too difficult to ever happen.
Hmm thats right. I think i still dream xD
But thank you.
Sent from my GT-I9100 using Tapatalk
it is not possible. because as stated on this forum many times before, the type of usb connection is determined by the resistor between pin 4 and 5 of the micro usb connector. the strength can tell the phone, that there is either a charger, a pc connection, car kit, jig, usb otg or mhl connection present.
and i believe, this is an important thing to keep in mind for so many things:
for instance, why the original car kit triggers car mode and generic car charging cables don't or why not just any micro usb male to usb a female will work as a otg cable or why flashing should be done with the original usb cable...
so if you were to buy or build a micro usb hub, since it has no resistor in the very plug that connects to the phone, it cannot be used for anything but charging and quite frankly, i wouldn't connect more than one charger to the phone.
however, if you want to use your phone for presentations or watching movies and still be able to use it, get a bluetooth keyboard and mouse or a bluetooth presenter or do it the other way around and use a usb input device and transfer your media using allshare. everything else is physically impossible, so neither CM nor XDA can do anything about it. the only device that can do what you want is the new motorola. it has a separate micro usb and micro hdmi port and a docking station, so you can use it as a full notebook.
Thats obvious. Thank you.
macc

USB + Charge adapter?

Is there any way to connect a USB Host adapter + charge the TF at the same time? I'd like to be able to watch videos (most of which are on my USB HDD) without having to spend hours copying them all to MicroSD just so I can charge the TF (and I use it a lot in my car (while parked, not while driving obviously) and dont want to have to dock the TF to do so (the main reason I use a tablet in the car is there is so little space between me and the steering wheel))
Possibly dissecting a Datacable so it forks the charge into 1 plug and the USB into the other? or wiring in a barrel plug to one of the USB host adapters? (I'm assuming it's not possible to just use a generic USB hub and somehow reverse the power on one of the ports to allow charging...?)
Not sure if his answers your question, but essentially, the pin layout on the cable that connects to the wall charger for the Asus Transformer matches the USB 3.0 spec.
As seen here on Amazon, you'll need a USB 3.0 cable to effectively work as an extension cable for charging via the wall-outlet.
Therefore, by the same logic, if you have a USB 3.0 port on your computer, you'll be able to make use of the extra voltage to do the same thing.
Renarudo said:
Not sure if his answers your question, but essentially, the pin layout on the cable that connects to the wall charger for the Asus Transformer matches the USB 3.0 spec.
As seen here on Amazon, you'll need a USB 3.0 cable to effectively work as an extension cable for charging via the wall-outlet.
Therefore, by the same logic, if you have a USB 3.0 port on your computer, you'll be able to make use of the extra voltage to do the same thing.
Click to expand...
Click to collapse
I don't think the USB 3.0 on a computer will supply more than 5V and 900mA. Not enough to charger the TF.
You best bet is to use a USB 2.0 extension cord, take out the wires that go to pin 1 and pin 4 and connect those wires to a 12V power source.
Absolutely no need to use a USB 3.0 extension cord.
Look here: http://forum.xda-developers.com/showthread.php?t=1087321
To answer OP's question, there's only 1 USB host port on the ASUS Transformer TF101 USB Kit. I don't think that's possible.
Confirm both replies - the Amazon-linked cable does indeed allow an extension of the power delivery from a stock power adapter, but connecting to USB 3.0 port on a PC will not charge the device. Just connected it direct too, not via a hub (even though it is a 3.0 hub - didn't work on that either...)
Suspect custom wiring required, as OP has speculated - anyone?

Mhl + usb otg

I have searched for a while and am wondering if there is a dock and or cable that will allow you to use USB host, access it, and play it through HDMI; while charging?
I can't find a cable that can do this... but what about a dock?
Thanks for your help.
Sent from my SGH-T959 using xda premium
Not possible. The SGS2's connector doesn't allow for simultaneous USB & MHL. When the MHL-to-HDMI adapter is plugged in, the SGS2 detects it (by measuring a specific resistance value across the two data pins) and switches to MHL mode, in which the three available pins are used for audio & video info, and are thus not available for USB data.

[Q]USB On-The-Go passthrough for MHL?

In preparation for getting my Verizon Galaxy S3, I have went through all the features I need for a phone, and realized that the most important one features is not documented anywhere. MobileFun's "Mobile Fun Connection Kit," has connects via MicroUSB and uses USB on the go to process attached USB devices on the USB port. Is it possible to use the MicroUSB in the adapter with Samsungs official MHL adapter, or Adapter Tip (Meaning I plugin the the Connection Kit via microUSB, then attach a device(Keyboard, mouse, etc.) via USB port, then use the connectors microUSB port to attach the MHL adapter, transmit the video signal to the TV, and then use the MHL's microUSB adapter to power the device)to the Connector. If not, (Do to bandwidth issues, or generally insanity of the question), are their any alternative implantation's I can use? Are their any other on-the-go adapter with MHL and a USB port?
Vibbix said:
In preparation for getting my Verizon Galaxy S3, I have went through all the features I need for a phone, and realized that the most important one features is not documented anywhere. MobileFun's "Mobile Fun Connection Kit," has connects via MicroUSB and uses USB on the go to process attached USB devices on the USB port. Is it possible to use the MicroUSB in the adapter with Samsungs official MHL adapter, or Adapter Tip (Meaning I plugin the the Connection Kit via microUSB, then attach a device(Keyboard, mouse, etc.) via USB port, then use the connectors microUSB port to attach the MHL adapter, transmit the video signal to the TV, and then use the MHL's microUSB adapter to power the device)to the Connector. If not, (Do to bandwidth issues, or generally insanity of the question), are their any alternative implantation's I can use? Are their any other on-the-go adapter with MHL and a USB port?
Click to expand...
Click to collapse
Not supported yet
saadi703 said:
Not supported yet
Click to expand...
Click to collapse
Specifically, MHL through USB on-the-go, or the galaxy S3's proprietary MHL implantation prevents it from working?

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