Okay, So I have a project that I have been working on, and it currently runs off of a laptop that I carry around with me because it needs a camera and a projector to run. I am wondering if I get (or make) a splitter for the micro-usb port, and use a full usb female to micro-usb male adapter, can i get the camera to input into the touchpad?
If the above answer is no, then that's not a big deal as the touchpad has a camera. however, Can the micro-usb port be used as an mhl port? or is there any other adapter that can be used to output the display.
Yes, you can use the USB port for OTG (hooking up external devices). You need a micro-to-female adapter, a USB-Y cable as well as a source of power for the device in question. There are a few posts in here and in the General talking about the various OTG capabilities, so you can do that.
Touchpad USB OTG Compatability List
HOW TO: $15 stand alone powered USB dongle for touchpad
There's two threads that should help you out.
I wouldn't suggest you try using the camera on CM9 or CM10 - it just doesn't work. WebOS does, but I have no idea how OTG works within it (if at all).
Thanks! I'll take a look a little later today.
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FYI - The Y cable is just a 5V supply splice to the +5 and Ground lines of the USB port. If you don't want to wait on a Y-cable you can just cut a USB extension and splice a stable 5V power supply (or the power lines of another USB cord) and it will work great.
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Anyone know if this is possible? It would be cool to be able to carry say a soft silicon keyboard in my backpack or something.
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yeah it is actually
just use an official or modified OTG micro usb cable and plug it in with the hdmi cable
have on hand a modified female to female usb connector ( I created one by cutting and splicing two ends off of old usb cords)
also on hand a powered usb hub can be usb powered with wall adapter or regular plug powered either way. but the power on the hub must first be modified check out youtube for how to modify usb hub to work on the atrix that is where I found it.
then connect the hub to power and the host end of the hub to one end of the female connector and the OTG usb to the other end and then the OTG usb to the phone
this may or may not be clear enough but I can assist you with any questions you may have about this tomorrow
Nice Ill check out the videos I would definitely like to have the hub you were talking about. Thank you ill let you know how I fare.
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is it possible to use a USB gamepad with the tablet? what kind of adapter would be needed?
You would need to construct an OTG cable, or use the hdmi dock.
Dell has never made an official OTG cable
You would probably need a PDMI to USB adapter, but I don't think any exist.
what if i use a female to female usb adpater like this one http://www.ebay.com/itm/NEW-USB-2-0-FEMALE-FEMALE-F-F-ADAPTER-CONNECTOR-/280732594049?pt=LH_DefaultDomain_0&hash=item415cf76f81#ht_2429wt_1041
Those are a great way to damage both devices being plugged into it, they're not normally made for a reason
i recently bought a cheap USB On-The-Go cable for the Razr hoping to be able to use my droid 4 with the DSLR controller app https://play.google.com/store/apps/details?id=eu.chainfire.dslrcontroller&hl=en but i am having no luck. i'm on stock w/ root, recently did the 219 update with no change. problem is i have no solid means of troubleshooting. i have a touchpad with cm9, droid 1, droid 2, and my droid 4, but i cannot get the cable to work with any of them even for mounting a usb drive. but i'm also having trouble finding solid info on if it should work with any of them.
has anyone had any luck using usb otg with the D4?
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I've gotten it working with a cheap Staples USB hub, a USB Y cable (2 male USB one end, 1 male microUSB on the other end for the hub), and a USB charging brick, the USB OTG cable itself. From what I've put together, it's sensitive to where it gets power from. That's why I had trouble with it at first.
Long story short, USB OTG does work on the D4 stock rom, updated and bone stock
bohhad said:
I've gotten it working with a cheap Staples USB hub, a USB Y cable (2 male USB one end, 1 male microUSB on the other end for the hub), and a USB charging brick, the USB OTG cable itself. From what I've put together, it's sensitive to where it gets power from. That's why I had trouble with it at first.
Long story short, USB OTG does work on the D4 stock rom, updated and bone stock
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Thanks. i actually was fooling around with my touchpad last night and found out it needs external power as well. so with a y-cable from a seagate portable harddrive, i was able to test that the OTG cable i have is indeed working. however, i could not get my D4 to work using extra power from my PC, but I picked up a kodak power brick today and its charging, so here's hoping that works.
actually nevermind, after playing around with a hub and a usb stick, it decided to work with my PC supplying extra power. after that, DSLR controller worked as long as there was extra power supplied. i imagine the battery pack i picked up should work quite nicely. now to go take HDR photos of the entire world! bwhahaha
Glad you got it working. From my reading, the thing to do is get power on the +5v rail of the micro-usb 'input' port, that will allow power to flow from the USB hubs power brick, thru the hub, up to the phone. Can't help you with that however, it's a bit beyond me.
Hello,
I have a USB OTG cable and dell keyboard that I have tested and work in OTG mode on a Nexus 7, however i cannot get them to function with my HP Touchpad 32gb, running CM9 2.6.35, built on Sun Oct 28.
The device recognizes when I plug in anything via USB, but only as a generic Linux USB hub, and not as any particular device. Are there any steps to take to debug this? Has anyone had experience with this type of an issue?
Thanks for your help,
Cory
I don't know if this is the issue, but I know the touchpad doesn't support OTG like the the Nexus does. I think you need a Y-adapter + OTG to provide power since the micro usb port doesn't give any power to the device you connect. Someone correct me if I'm wrong though.
Apparently even a powered USB requires a powered Y cable to be properly recognized. I hacked together a quick Y cable manually, by splicing in another USB cable's power and ground (Red and black) to the respective locations on a female USB cable. Works as expected.
I am now communicating with an Arduino over Serial
Thanks!
Read this thread, should give you all the info you need:
http://forum.xda-developers.com/showthread.php?t=1582771
Basically the Touchpad has OTG but it provides no power.
wcdolphin said:
Apparently even a powered USB requires a powered Y cable to be properly recognized. I hacked together a quick Y cable manually, by splicing in another USB cable's power and ground (Red and black) to the respective locations on a female USB cable. Works as expected.
I am now communicating with an Arduino over Serial
Thanks!
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Click to collapse
I'm curious if you are able to charge with this cable hack while using usb devices?
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ZedZardoz said:
I'm curious if you are able to charge with this cable hack while using usb devices?
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Click to expand...
Click to collapse
if so , he is the first of the many many many who has used this cable..HPTP just is not set up for charge + usb data at the same time
amkaos said:
if so , he is the first of the many many many who has used this cable..HPTP just is not set up for charge + usb data at the same time
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Click to collapse
Agreed. I think people just are not stating reality regarding the ability to charge and use OTG Hosting to USB devices at the same time.
My goal here has been to attach a flash drive with video/audio media and play & charge on long flights. It looks like play, charge are mutually exclusive on my beloved TouchPad.
I've asked for the specific confirmation of this from this YouTube but have never had the poster reply:
https://www.youtube.com/watch?v=p10LgZFIawo&feature=BFa&list=PLCED27D4A23068E04&index=7
There are devices out there that have very advanced micro USB device implementations. Sadly the HP is only superficially supportive.
I for one cannot wait to get my SGN2 smart dock which offers:
Charging
OTG (x3 USB)
Audio out
HML HDMI out
Docked Profile
Hi all,
I recently bought a female to female usb adapter hoping to use it along with the original charging/data cable to get USB host on my phone. It doesn't appear to be working. I have tried several peripherals (flash drive, keyboard etc.).
Is the data cable for the Atrix HD physically different from the OTG cable? I had heard that was the case for another device.
Edit: Sorry, I didn't mean to post this in general. Could a mod please move this to Q&A.
Please keep questions to the Q&A section
Sorry, I meant to post this in Q&A. Could a mod please move this. Thanks!
Micro USB plugs actually have 5 pins whereas the standard has 4. So pin 4 (called the ID pin) is left floating on your normal data cable. However, on an otg cable or adapter, pin 4 is shorted to pin 5 (ground) before everything goes to the rest of the cable. When the phone detects the short on the ID pin, it activates the host function.
You can find cheap adapters that short the pins for you or you can modify your own cable by hacking off the housing on the micro side and soldering a jumper between the pins. Also, for accessories to work, you'll likely need a powered USB hub since the phone won't supply the power for them (at least that's the way in my experience).
Hope this helps. Otherwise, let me know if you have more questions. If you google USB host or USB otg, you'll probably find some good stuff.
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Thanks a lot! That totally answers my question. I'm just going to buy an OTG cable.