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USB keyboard works with Ipad 2 strange

Discussion in 'iPad 2 Forum' started by keevill, Apr 11, 2011.

  1. keevill
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    keevill iPF Novice

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    I have just acquired an Ipad 2 and have read in several posts, that the camera kit dodge to get a usb keyboard functioning with the Ipad no longer works as the power output in the latest 4.3 OS has been reduced.
    The only option is to use an electrically powered hub. I decided to go this route and buy such a hub.
    However, I have just discovered that the keyboard works WITHOUT connecting to the hub. I just plugged the keyboard in to the camera adaptor and it works.
    Any comments on that ? Am I just the lucky one or is it a fluke ?
    -keevill-
  2. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    Using USB keyboard's should generally be possible, only sometimes does it not work.
    But I don't actually know why. My first iPad 2 did not work with the external USB keyboard, but after exchanging the iPad does the USB keyboard work, also without a powered hub.

    The powered hub's should only be needed for devices, which draw a higher current then the iPad can supply, 10mA.
  3. Brockly
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    Brockly iPF Novice

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    thats kinda cool and i might have to pick one up that that works with a keyboard :)
  4. keevill
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    keevill iPF Novice

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    Perhaps some USB keyboards draw a little less than the 10mA limit ?
    That would explain it would it not ?
    -keevill-
  5. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    Well, the keyboard did not work with the initial iPad 2, but now works with the replacement i2. So considering the current drawn by the keyboard stayed the same, it is not entirely clear, why the keyboard did not work initially.

    The keyboard in question is a MS Natural Ergonomics 4000.
  6. nguyen
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    nguyen iPF Noob

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    This is a bit off topic but I'm just gonna ask anw. Im planning to get a 16gb iPad 2 and thinking of expanding its storage with sd card or usb stick, but I hv read a few post saying the problem with iPad 2's power output. So since you have the powered usb hub, could you try to connect a thumbdrive to iPad 2? I know this could be done with iPad 1 but given the reduced voltage thingy that Apple did to iPad 2, this is no longer possible.
    Thanks
  7. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    I don't think thumb drives work without a jailbreak, which is not yet available for iPad 2. Btw. a powered hub is not necessarily required for thumb drives, my Kensington stick works directly from the camera connection kit. And since the current limit is the same on iPad 1 and 2, should it still work, once a jb is made public.
  8. nguyen
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    nguyen iPF Noob

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    I did some research around and it all said the current is limited in iPad 2. Thats what they said anw.
    Also, there is a way to connect a USB to iPad 1 that is to format your usb stick to Fat32 and create a folder name DCIM and put your stuff inside that folder to trick iPad 1 into thinking its a camera. Now thats what they did before the jailbreak was available, so I wonder if I can do the same for iPad 2?
  9. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    Neat trick.

    Works a treat on iPad 2. I created a DCIM folder on a Kingston thumb drive, filled it with a few images and they than showed up in Photos. But of course does it not read any other files.

    I think both iPad 1&2 limit the current to 10mA.
    Last edited: Apr 15, 2011
  10. nguyen
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    nguyen iPF Noob

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    Thats nice... how big is your kingston thumb drive? It'd be great if you can test usb with larger storage, see what the limit is. Im also interested to see if other thumb drive that previously showed the "not enough power" message could do the same...
  11. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    It is a Kingston DataTraveller G2 4GB, which is the largest thumb drive I have here.

    Also tried the same DCIM, Fat32 thing with an external hard drive, but it doesn't mount. Even though a powered hub is used, but the same setup doesn't work on iPad 1 either. It may be that the Fat32 partition is in fact behind the NFTS one.
    Last edited: Apr 15, 2011
  12. madhatter61
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    madhatter61 iPad Enthusiast

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    An SD card doesn't expand the storage. you can however, load movies on it and as long as you setup the proper file folders and have the proper format then you can load movies from the card, just like you can transfer photos into fixed internal storage.

    The iOS nor the other apps do not read or write to the SD card like it does to the solid state storage built in. So you can not expand your storage like you think you can. You can not.
  13. nguyen
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    nguyen iPF Noob

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    @madhatter: yeah you're right, i should hv been more precise. What i meant is to read off usb and all. It'd be great before a long trip or sth to have an extra storage for movies from which you can load into you iPad.
    @Dontunderstand: so basically you can only use your kingston usb in both iPads, not the external hard drive though?
  14. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    Yes, the USB drive works, but the external hard drive doesn't, though the latter may be due to my own incompetence.

    It is probably a mistake to have a NFTS partition on the external hard drive.
    Last edited: Apr 16, 2011
  15. nguyen
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    nguyen iPF Noob

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    Ok that's great... it's gonna be too much to ask here but if you can partition your hard drive with a small partition in Fat32, we could find out.. but it's just a thought though.
  16. Brockly
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    Brockly iPF Novice

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    I herd about using the sd card with the camera so I got a female to female and tried to hook a USB keyboard and it didn't work
  17. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    Female to female? What did you need that for? USB-keyboards usually come with a male USB-plug, which goes straight into the camera connector kit.
  18. Brockly
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    Brockly iPF Novice

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    I didn't have a camera connector so I hook it up to a power cord
  19. madhatter61
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    madhatter61 iPad Enthusiast

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    The issue is most external backup drives are formatted in NTFS ... works great for PC's... Mac can read NTFS but does not write. (Apple never took out the license from Microsoft to do that) ... Mac writes to HFS+ format. That is why time machine needs the latter format.

    Now when trying to use the external drive ... if it is not fat32 (like most thumb drives use) and you also need all your files stored in the specific Camera File named DCIM ... then iOS only considers .jpg and .mov. I may be wrong on just .mov for movies. I do know that Mac does not do AVCHD from Sony direct ... it has to be converted to MOV or MOB.

    Initially I tried to transfer Photo files from iPhoto on my Mac mini to iPad2. I couldn't get it to work. Instead I got the Camera Connector kit ... plugged in my 8 GB SD card from my Panasonic Lumix camera ... and voila ... iPad2 recognized it immediately ... took about 5 minutes or less to transfer 900 photos. I have since learned you can do the same thing with movies. However, Larger SD cards get expensive. That is one reason we chose the 64 GB SSD drive on the iPad2. It is faster than SD cards. I am just learning about all the ways to get data in and out of the iPad2. I appreciate solid info. Thanks in advance.
    Last edited: Apr 16, 2011
  20. madhatter61
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    madhatter61 iPad Enthusiast

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    Yes, you can certainly add a additional partitions to a harddrive ... i.e. Fat32. and on a std. PC or Mac those OS's we readily read the partitions and post the drives so you can see them.

    I don't think the iPad OS does that. So I don't know how you would differentiate one partition from another. The apps do their own thing, and we usually don't have any input control. It depends on the app. The iOS manages the apps and all the utility functions, but it is quite different than x86 architecture.

    In the PC world all the different formats is what makes it so complicated sometimes. With iOS Apple is unique in that their is only their OS to deal with... and their hardware. So it is all finely tuned. I think this is why so many nerd hate iTunes, because iTunes does Apple beautifully, but doesn't recognize or handle all of their work arounds in ripping tunes, movies and the like. iTunes is really misnamed in my opinion. It should be something like iSync and Xfer. Apple has a very tightly controlled database scheme that is managed my iTunes. There is an interesting post yesterday by John Gruber (daringfireball.com) re: "cutting the cord". It spells out 4 key issues that are really important. Some posted they didn't like how long it took to update to 4.3.2. It took me over 3 hours via my Mi-Fi router. Apple doesn't just insert or remove code. It replaces the entire iOS... so it is guaranteed to be complete with no fragments of this or that. It is not that they are always perfect ... OS's are always a work in progress. But Apple does pay attention and does upgrade regularly. They don't like or want jail break because they are not always carefully reviewed and it takes a very savvy person to stay on top of JB fooling around. Some do it for the challenge ... the rest of us just want to use it ...
    Last edited: Apr 16, 2011

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