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Android and USB

Greg Lehey Posted by Greg Lehey | Sun, 29 Jun 2014
see the original posting from Greg's diary

Discussion on IRC about keyboards for Android devices today. Jashank Jeremy opined that Bluetooth keyboards were no good. I've already been there, done that, and came to the conclusion that there wasn't much point attaching a keyboard to an Android. But Jashank had a different problem: the key spacing is too small, at least on the keyboards he tried.

But a couple of weeks ago, for a completely different reason, I blew $1 on a normal USB to micro USB adapter, which allows me to connect normal USB devices to the tablet. Would it work with a keyboard? Most people thought not. But they were wrong. It was recognized immediately:

This should be Screenshot_2014-06-28-12-05-45.png.  Is it missing?

Daniel O'Connor thought it might have trouble with keys repeating, but that, too, worked fine. The only issue was the one I identified last October: what can you do with a keyboard on an Android?

But the real reason I bought the adapter was related to a thread in the German Olympus Forum. Jürgen von Esenwein wanted to buy an Android tabled with an SD card reader. I suggested just connecting a USB card reader, but Oliver Musch suggested that it wouldn't work without host mode. For $1 I was willing to experiment.

And? When I plug the reader in, it is recognized, but I can't find anything in the settings. How do you use these things? It seems that they have disabled all the familiar (intuitive?) interfaces, possibly create new ones, but don't document them. Once again I'm completely baffled.

ACM only downloads articles once. It's possible that this article has changed since being downloaded, but the only way you can find out is by looking at the original article.


see the original posting from Greg's diary

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