Database Develop

[Q] External Usb Keyboard (wired, is it possible)

Has anyone successfully attached and used a wired Usb keyboard. I've searched thoroughly but haven't seen it specifically answered.
The only references seem to be regarding the potential blue-tooth capabilities, news that we all anxiously await. But I'm interested only in a wired...or possibly a wifi solution. at this time. I know that it has been done on an HTC android, and they speculated that it should be possible on most android phones but I haven't seen this confirmed for the nook color. I only ask because I would have to buy (arrggg.....spend money, deep breaths, deep breaths) and would like to be sure before making any purchases, thanks.

[REQ] External USB touchscreen support (Atrix/Photon)

Seeing that the Evo will most likely never get stable USB host support I have abandon future projects on the Evo and am looking at expanding the Atrix/Photon feature set. I'm looking to work with a dev on external touchscreen support for the Atrix/Photon platform as well as other possible USB devices.
Granted, I have a the "CDMA Atrix" a.k.a. Photon but drivers should be easy to port and would benefit both devices. If I can get some devs on board we can nail down hardware specifics and other details later. I won't go into detail here as to what the end results will be but devs feel free to PM me with any questions. Hopefully there will be more dev involvement than the Evo Desktop had.

I am seeking a similar solution, i would like to run my Atrix as a car-pc with a 7 inch touch screen in dash. Please keep us updated!

Lokifish Marz said:
Seeing that the Evo will most likely never get stable USB host support I have abandon future projects on the Evo and am looking at expanding the Atrix/Photon feature set. I'm looking to work with a dev on external touchscreen support for the Atrix/Photon platform as well as other possible USB devices.
Granted, I have a the "CDMA Atrix" a.k.a. Photon but drivers should be easy to port and would benefit both devices. If I can get some devs on board we can nail down hardware specifics and other details later. I won't go into detail here as to what the end results will be but devs feel free to PM me with any questions. Hopefully there will be more dev involvement than the Evo Desktop had.
Click to expand...
Click to collapse
Basically there should be no porting needed. Atrix and Photon kernels are 99.99% the same and just differ in build configuration.

I thought to do this exact same thing as it makes tremendous sense. Everything already on the phone. Could be implemented very easily with the multimedia dock or even the car dock that enters the Photon into navigation mode automagically.
Have you tried the touch screen USB support yet?

OTG to many different answers

I have read way to many answers to this to feel like I actually know whats going on so I am going to the source for this XDA. My question is simple does OTG work on a Non-rooted nexus7 and has any one confirmed this with a out of the box model I thought it was rooted only but then I see tons of articles that imply they used OTG on day one with a fresh model no roots. Looking for a confirm or deny from some one with a NON rooted version who has actually done it.

Link to those articles?
The OTG cable works fine for mice and such, but Stickmount only works on Rooted devices. You need to Root it to use Stickmount (with the OTG cable).

illfindu0742 said:
I have read way to many answers to this to feel like I actually know whats going on so I am going to the source for this XDA. My question is simple does OTG work on a Non-rooted nexus7 and has any one confirmed this with a out of the box model I thought it was rooted only but then I see tons of articles that imply they used OTG on day one with a fresh model no roots. Looking for a confirm or deny from some one with a NON rooted version who has actually done it.
Click to expand...
Click to collapse
OTG only works with keyboard and mice. StickMount is currently the only way to mount USB drives and it requires Root.

[Q] USB OTG

Im presuming this will have otg like was introduced on the HTC One X with the JB update?

Anyone know yet? I'm keen to know too.

Yes, some user posted it. USB OTG is supported
Sent from my DHD

I would hope so.
It would only make sense if it did.

[Q] Can USB Audio be supported?

After many test, I can not use the Fiio E18 DAC with my Galaxy S.
On the GS are installed Cyanogenmod 10.2 (Android 4.3) and kernel Sempahore 3.3.0.
I'm looking for this answer: my GS can or not recognize and work with the external Audio device or not?
Is a hardware limitation or software?
It seems that the Semaphore comes with usb driver, but it seems is not enough.
Someone is able to help me?
Can a newer 4.4 rom give me better chance?

In most of time USB DAC are not recognized by android smartphones even with JB or output usb driver. Besides galaxy s can't power this up even with battery in dac. Strange problem, JB was supposed to make use of this devices, but it didn't
Sent from my GT-I9000 using xda app-developers app

frogger5 said:
In most of time USB DAC are not recognized by android smartphones even with JB or output usb driver. Besides galaxy s can't power this up even with battery in dac. Strange problem, JB was supposed to make use of this devices, but it didn't
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
Many thanks for the answer!
When you write:
Besides galaxy s can't power this up even with battery in dac.
Click to expand...
Click to collapse
What does it mean? That the DAC must be power by the phone in order to be recognized?
Another question.
The new Android KK 4.4 is better for audio support or is the same as JB?

carpler said:
Many thanks for the answer!
When you write:
What does it mean? That the DAC must be power by the phone in order to be recognized?
Another question.
The new Android KK 4.4 is better for audio support or is the same as JB?
Click to expand...
Click to collapse
I'm afraid i can't answer this question, because i just don't know. The DAC itself has a battery built in it, but somehow the electric energy doesn't flow through these two devices Sorry for my lack of knowledge, i hope you will somehow walk around this problem
As far as I know KitKat 4.4 brings the audio tunneling feature. It means Android make use of built in DAC(e.g. Wolfson WM 8994), but sadly , now it's working only on Nexus 5.

After searching and reading I found the answer.
I think that is no way to make my E18 DAC work with the Galaxy S.
The problem is that the USB OTG is not enough: the kernel missing USB isochronous transfer feature and is not easy for a third-party developer or modder to modify a USB host driver because he doesn't have all the information on the implemented USB host controller, a hardware component.
If someone needs more information, the thread to read is on head-fi (but you can start from this thread where you find list of android device that can work with external DAC).