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I want to connect several usb devices to my Android tablet, using a usb hub.
Does android supports such a thing?
If it does, from what version?
Thanks!
This depends on things other than the version of android.
First the tablet hardware must support USB host functionality. By this I mean that the tablet must be able to power external devices per the USB standard.
If your tablet fits this bill, Android 2.3.1 and newer are known to have this functionality built in. This doesn't mean that an older version of Android hasn't been modified by the OEM, or can't be modified by you, to support the functionality.
I needed to connect a usb camera to my tablet.
I found that I need to have some extra support from my kernel than what I have.
The kernel needs to support V4L2 in order to get data from the camera. The whole process is made threw jni.
There was no problem working with 2 devices using a hub.
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I want to port miui using aosp as base rom . I searched on the web but didn't find any aosp rom for my device.I owns a Moto g turbo(merlin).So will I have to make it from scratch from the instructions provided on aosp site.
as far as I could search quickly, I found there's Lineage OS Port for merlin. You could use that as base for porting MIUI without porting or building AOSP.
Here's the device tree of it
First try to find a similar device to turbo having MIUI port. If you could find that, it would be easier to port from that device relatively.
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I've a car stereo (Pioneer AppRadio2) that seems to have a ROM tha contains WindowsCE for MIPS.
Would it be possible to run Linux/Andriod on the device by flashing a linux type ROM to the device ?
If it is possible what would be the high level steps that need to be done to achieve this ?
Pioneer does have a mobile developer web site for AppRadio, but it isn't live yet, so it looks like Pioneer won't be an immediate help.
You need to determine if the bootloader is locked by some sort of digital signature or not. If it is digitally signed and locked, you're going to have to either obtain a key from Pioneer or reverse engineer it.
Following that, use an embedded toolkit like OpenEmbedded to create a Linux environment on the device.
That wont be so easy. Actually it is meant to be a control station for android and iphone devices. so you could just use the android kit for your phone and control it from your appradio2 as for now. I know youre radio wouldnt be running the android itself but would display it and control it.
since it is quite new it will take some time for developers to "hack" it if it is possible. i have seen bounties on xda for example from people that would like what you are asking and other things.
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While searching for Android ADK supported devices, I came across developers expressing the concern that although their device (smartphone or tablet) runs either Android 2.3.4 or 3.1, however, the ADK does not work.
So I would like to know the list of devices which support Android ADK.
I request the readers to add to the devices which they found works fine with Android ADK.
Note: I have seen another question which is meant only for Android ADK tablets, where as my question is about generic devices.
Let me start with a link which I found lists few Android ADK supported devices:
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i have a fingerprint reader device for pc but now i want to connect that fingerprint reader to my android mobile ?anyone help me which is the usb connector for this???
The USB connector is the least of your worries - IMO the real problem will be kernel drivers to interface with the hardware and userland software to interface with the drivers.
Are you planning to write the driver yourself? Otherwise, I don't think it's supported out of the box.
If so, you'll need to find the specifications and protocol for your device, and implement them to work with the kernel Android is using (so probably the Android SDK reference will be useful, perhaps even Linux Kernel Documentation might be useful). Note that this is no easy task even when all the specifications are available - woe betide you if there's no published spec to the reader, as you'd have to reverse-engineer the functionality from the Windows driver.
In closing: despite great developments in the past decade, we're still light-years away from truly plug-and-play devices: especially devices made for desktop computers don't interoperate well with other (e.g. mobile) platforms.
What do you think will happen if you'd be able to connect your finger print reader to your device?
I can tell you what will happen. Nothing. Android does not support finger print reading.
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I bought a umpc on ebay, A Ipad touchscreen like device. I had been looking at a particular hardware model that many sellers had, on which was running Android (1.6). I based my choice on the one that offered "free" shipping via UPS (3-5 day) delivery. after the purchase I noticed that the one I bought has Windows CE, not android (!#$^%!!!). Now I want to know if I can get a copy of Android 1.6 or higher and put it on this device. I have looked on google, Torrent sites and ebay, but cannot find a copy of Android OS
Check out http://source.android.com for instructions for downloading and building the source. AFAIK there is no way to download the binary of the source. It is open source and free although that's not to say that the vendor didn't have to hack it hardcore to make it work on the device.
By default, the source for OS of Android i.e. Linux kernel is not included in the default download. You need to download them seprately from the Linux tree,
link text
Select from the different flavors from the bottom, for example I used the “android-msm-2.6.29-donut” source code. You can get a snapshot of entire head, which is easier than getting it via git. Then you can compile via standard Linux make procedure.