Database Develop

Mini-USB potential

Hi there,
Regarding the mini-USB port, does anyone know if it is specifically for connection in some sort of “slave” mode, or does it have the potential to be used in the same way as the USB port on a normal desktop PC?
In other words, just as a PC can communicate and control a whole load of devices (external drives, printers etc), would it be possible with suitable software for the PPC’s mini-USB to do likewise?
Any ideas most welcome.
Ken

No this is not possible because the phones dont have a host controller as of yet, i don't know if the Universal has this yet but without a controller a device can only connect to a USB connection that does have one so the Wizard is out of the question.
A USB system has an asymmetric design, consisting of a host controller and multiple devices connected in a tree-like fashion using special hub devices
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Source : http://en.wikipedia.org/wiki/Usb

HOST USB or USB HDMI Video Card ? Any way to use usb port to use usb devices ?

Usb port is it locked or there is possibility to use it like usb host ?
To manage copy pictures of a camera to phone without pc by usb adaptator.
Samsung talked about usb 2 hdmi cable and think if its real it use some usb video card supported by phone(because of physic material imcompatibily of hdmi nd usb)
May there is a way to dev a tool or hack to get it works...

Aah!! Finally somebody like minded!!
I had been scouring forums for something like this. USB OTG would be an excellent add on to this phone. If not OTG, at least host would be an excellent idea.
No idea whether the existing USB Host driver for Nexus one would work on this one.
The processor on SGS already supports USB Host (not sure about OTG though). This has been pointed out in their press release - w w w .samsung.com/global/business/semiconductor/newsView.do?news_id=1043
I am just wondering - should we request Samsung themselves via mass petition to open up this feature on SGS?

some USB devices might be compatible, like the 100/1000 Mbps USB to RJ45 plugs
those same ones works in Windows Mobile it should work as well for Android, however a driver will be required.
mouse and keyboard support should work out of the box
external USB keys for storage, or even USB mass storage devices should work out of the box as well.
usb audio... hmm... not sure what else at the moment

Hi AllGamer
Thanks for the reply. So how exactly do we get this going on SGS?
I am much more interested in having USB HDD support on SGS (hopefully without an ext power source - am I asking for too much? ).
Are you suggesting that the N1 fix should work here also? Can somebody help us with a "How To" to enable this on SGS?
Cheers!!
Coooolboyz

you can plug in any USB mass storage devices (USB hard drives) and it should work.
However, you might not get enough power from the usb port, you'll still need need power cord for your external usb hard drive.
I know on my HTC windows phones works like that, it should be the same for Android.
I'll try that when i get a chance.
you just a need a USB female to a mini USB male cable

yep!! you are right about power!!! I am trying to get a cable - hopefully in couple of weeks should have this.
but I am wondering if all this would work without proper drivers in it. Would SGS have USB HDD drivers in it already?

coooolboyz said:
yep!! you are right about power!!! I am trying to get a cable - hopefully in couple of weeks should have this.
but I am wondering if all this would work without proper drivers in it. Would SGS have USB HDD drivers in it already?
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I can see one problem, You will only be able to use Fat32 drives unless someone compiles NTFS / HFS+ into the kernel. Ext3/4 is already done so I don't see many problems. What I recommend you do is get some sort of adaptor for Female USB > Micro USB and test it out with a flash stick or you can hack one .

Yeah - I understand the difficulties of having NTFS support outside the MS world.
I didnt know that ext3/4 were already a part of the kernel!! Is this by default available in all Android kernels?
For USB Host cable - I am guessing that this one can be used - http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=250671106072 (same as what Sven used for N1 USB Host capabilities).
But I seriously doubt plug and play would work (that would be too much of an expectation! )
Does any body have that cable here, who can check out if SGS does actually work in USB Host/OTG mode?

Sven has try with a Galaxy another Host Driver
h t t p : / / sven.killig.de/android/Galaxy/

Hm what can we do with these files?
However, any news about this?
Maybe, we could ask some Galaxy S kernel developers about this.

[Q]Howto connect the i9000 to the pc screen?

Hi guys,
been a passive viewer in the xda forums for a long time but never posted anything, so be easy on me - It's my first.
I would like to connect my galaxy s i9000 to the pc screen.
I know there's the TV out option, but it involves a 3.5" to RCA cable, and pc screens don't have RCA jacks.
Does anyone know of a way to do this? and if you know what kind of cable is required that will be great.
I'm using the CM9 rom, build 17 from theam hacksung.
Just to clarify, I want to connect to phone to the PC so I can view the phone on the PC screen.
Thanks in advance

Short answer is you can't.
Longer answer is you might.
Your monitor doesn't have RCA connectors but if you have a tuner installed inside your PC, you might be able to connect it to that and then use the software that came with the tuner to display it onto your monitor.
Another method would be to use a RCA to whatever input your display has converter but they are are usually pricey and after a search for RCA to HDMI/VGA/DVI I don't think they really exist.
Even if there was a 3.5mm to HDMI/VGA/DVI cable, it wouldn't work unless the display was designed to take a PAL or NTSC signal through those types of connections.
With cm9, you need to have 3.5mm to RCA cable plugged in then go into System Settings>Advanced>TV Out. The option is greyed out when no 3.5mm to RCA cable is plugged in and the option has to be checked every time you plug the cable in.

Thanks for the reply,
I knew about the tv-out option, but didn't think about using a tuner - that might work!
Another question, do you think that a micro usb - hdmi cable might work?
I saw a while back that samsung offered such a cable that was designed for that purpose exactly.
I've searched a lot of forums but havn't got a clear answer if this actually works, not have I seen a youtube video demonstrating this.
Does anyone know if using a micro usb - hdmi cable wokrs?

jons753 said:
I knew about the tv-out option, but didn't think about using a tuner - that might work!
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Do you know what tuner you have? I'm not sure if yours will have it but there will be a yellow plug like the ones you find on a TV.
I'm %99.9 sure that the I9000 doesn't have HDMI out through USB. It would seem a bit excessive to have two video out ports. Although you did spark an interesting subject, if someone could whip together drivers to work with something like this we could potentially have HDMI through USB but I don't see it happening any time soon.
Here's another way to view your phone through your PC: http://mymobiler.com/

[Q] USB OTG: usb1 found, cannot use keyboard

Hello,
I have a USB OTG cable and dell keyboard that I have tested and work in OTG mode on a Nexus 7, however i cannot get them to function with my HP Touchpad 32gb, running CM9 2.6.35, built on Sun Oct 28.
The device recognizes when I plug in anything via USB, but only as a generic Linux USB hub, and not as any particular device. Are there any steps to take to debug this? Has anyone had experience with this type of an issue?
Thanks for your help,
Cory

I don't know if this is the issue, but I know the touchpad doesn't support OTG like the the Nexus does. I think you need a Y-adapter + OTG to provide power since the micro usb port doesn't give any power to the device you connect. Someone correct me if I'm wrong though.

Apparently even a powered USB requires a powered Y cable to be properly recognized. I hacked together a quick Y cable manually, by splicing in another USB cable's power and ground (Red and black) to the respective locations on a female USB cable. Works as expected.
I am now communicating with an Arduino over Serial
Thanks!

Read this thread, should give you all the info you need:
http://forum.xda-developers.com/showthread.php?t=1582771
Basically the Touchpad has OTG but it provides no power.

wcdolphin said:
Apparently even a powered USB requires a powered Y cable to be properly recognized. I hacked together a quick Y cable manually, by splicing in another USB cable's power and ground (Red and black) to the respective locations on a female USB cable. Works as expected.
I am now communicating with an Arduino over Serial
Thanks!
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I'm curious if you are able to charge with this cable hack while using usb devices?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

ZedZardoz said:
I'm curious if you are able to charge with this cable hack while using usb devices?
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
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if so , he is the first of the many many many who has used this cable..HPTP just is not set up for charge + usb data at the same time

amkaos said:
if so , he is the first of the many many many who has used this cable..HPTP just is not set up for charge + usb data at the same time
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Agreed. I think people just are not stating reality regarding the ability to charge and use OTG Hosting to USB devices at the same time.
My goal here has been to attach a flash drive with video/audio media and play & charge on long flights. It looks like play, charge are mutually exclusive on my beloved TouchPad.
I've asked for the specific confirmation of this from this YouTube but have never had the poster reply:
https://www.youtube.com/watch?v=p10LgZFIawo&feature=BFa&list=PLCED27D4A23068E04&index=7
There are devices out there that have very advanced micro USB device implementations. Sadly the HP is only superficially supportive.
I for one cannot wait to get my SGN2 smart dock which offers:
Charging
OTG (x3 USB)
Audio out
HML HDMI out
Docked Profile

USB Audio

I'm thinking about using an Amazon Fire 7 inch tablet as a car radio dashboard install, but before I commit to buying one, I can't seem to find any conclusive answers on a few things.
Firstly, does the fire output USB audio so I can use a USB dac?
And if so, is it possible to use a Y split cable for USB audio and charging at the same time?
Any info would be greatly appreciated.

kcajjones said:
I'm thinking about using an Amazon Fire 7 inch tablet as a car radio dashboard install, but before I commit to buying one, I can't seem to find any conclusive answers on a few things.
Firstly, does the fire output USB audio so I can use a USB dac?
And if so, is it possible to use a Y split cable for USB audio and charging at the same time?
Any info would be greatly appreciated.
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I can confidently say this Fire like most other Amazon devices will not support charging while the USB port is being used for any other function. Can't speak to USB audio out (suspect not) as most go with Bluetooth.

Davey126 said:
I can confidently say this Fire like most other Amazon devices will not support charging while the USB port is being used for any other function. Can't speak to USB audio out (suspect not) out as most go with Bluetooth.
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It does seem to be a difficult feature to find on Android tablets.
According to Wikipedia, it's a simple implementation of a USB otg cable that should allow charging on any usb otg device.
USB Otg Wiki
The major problem (presuming the cable does work and usb audio is possible) is that the kernel needs to be able to enable USB otg at the same time as charging.

kcajjones said:
It does seem to be a difficult feature to find on Android tablets.
According to Wikipedia, it's a simple implementation of a USB otg cable that should allow charging on any usb otg device.
USB Otg Wiki
The major problem (presuming the cable does work and usb audio is possible) is that the kernel needs to be able to enable USB otg at the same time as charging.
Click to expand...
Click to collapse
Yep. The stock kernel on most consumer devices don't have robust OTG support as the most commonly used gizmo is a flash drive. I was able to get a OTG GPS receiver to work but it wasn't plug-n-play by any means. Charging didn't work in that context...although I didn't fiddle with it much.

I've been working on a kinda similar project, I just haven't had time. I'm trying to use my fire as an octoprint server, which is a program that monitors and controls 3d printers. The problem is that it requires usb to be connected to the printer, while also staying powered on. What I'm going to try is remove the battery, step down 12v from the printer to 3.7v and just hack it onto where the battery would connect to the pcb. I'm not sure what the different pins on the battery connector are though, so I'll have to test those. Otherwise, it should work.