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micro usb to micro hub

Discussion in 'Android Lounge' started by timsinc, Oct 10, 2014.

  1. timsinc

    timsinc Newbie
    Thread Starter

    I have an Android tablet and often use it with a TV 'dongle' which plugs into the tablet's micro usb socket. But whilst watching TV, I would also like to be able to charge the tablet. So what I'd like to know is if there is such a cable that splits from one male to two female micro USBs (suitable to take charging). I can't seem to find one anywhere. Thanks in advance for any help.
     

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  2. EarlyMon

    EarlyMon The PearlyMon
    VIP Member

    When you're using the dongle the device is in USB host mode.

    It's theoretically possible (see http://rootzwiki.com/topic/30615-can-you-charge-usb-host-mode-simultaneously/) but not practically possible.

    While in host mode, your device expects that it may have to provide power, rather than accept it.

    If someone has gotten this to actually work, I'll be as interested as you - but - not going to hold my breath.

    Sorry but there it is.
     
    timsinc likes this.
  3. John Bean

    John Bean Happy Wanderer

    I'm not sure that what you want is possible, I've certainly never seen one. The problem is that when the tablet is acting as a host - "OTG" mode - it normally would be providing power to the USB port rather than accepting charge from it, much like a PC does.

    Hopefully I'm wrong and someone can point you to something that does what you need :)


    Edit: I'm a slow typist and EarlyMon beat me to it...
     
    EarlyMon likes this.
  4. timsinc

    timsinc Newbie
    Thread Starter

    Thanks for the quick replies guys. I'll just have to make sure my tablet is fully charged before a full evening's TV!

    Seems a pity that a) tablets don't have built-in TV 'dongles' and b) that there isn't a separate charging socket.

    My first tablet, a Sony, did have separate socket, but inconveniently came with a small computer-like brick for power. The Sony died a death - it won't even boot up so I can't wipe it clean before binning. But that's another story/question!

    Tim
     
    EarlyMon likes this.
  5. chanchan05

    chanchan05 The Doctor

    It has mostly to do with compatibility. For example, Samsung tablets can stream to Samsung TVs wirelessly via AllShare, so you can charge the tablet while watching.
     
  6. EarlyMon

    EarlyMon The PearlyMon
    VIP Member

    It has more to do with the dongle being plugged into the tablet, not streaming to a TV. ;)
     
  7. chanchan05

    chanchan05 The Doctor

    Oh Ok, misunderstood. I was thinking of the dongle you put so that you can stream to a TV that's not compatible.
     
    EarlyMon likes this.
  8. dynomot

    dynomot Android Expert

    A Samsung HDMI adaptor has a micro USB port built in so you can charge the device and mirror the media on the device to a TV and charge it at the same time. I have no idea if one would work on any device other than a Samsung one though.
     
  9. John Bean

    John Bean Happy Wanderer

    The HDMI adapter doesn't put the tablet into host mode so the charging issue doesn't arise.

    In any case the OP wants to find a way to charge while watching TV on the tablet using a TV dongle - if he wanted to watch TV on a TV he would not need the tablet :)
     
  10. timsinc

    timsinc Newbie
    Thread Starter


    Quite!! I use it when travelling in my camper...no TV there!
     
  11. dynomot

    dynomot Android Expert

    Ah, sorry misunderstood.
     
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