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Can a USB->COM port be used with an XDA

I have a need to use an XDA as a PDA and I have a laptop USB to COM port emulator.
Can an XDA accept a USB/COM adapter?
Why?... It is a radio amateur thing and I will be controlling and obtaining feedback signals from the COM port device that I connect to my radio.
All coded in VB.Net and works fine on a laptop and I can get it to port to Windows Mobile 5.0 fine but now need to obtain USB (Host?) to COM ability.
Regards,
Dom

Can an XDA accept a USB/COM adapter?
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Any answer on this would be handy for me too...
Would make terminal connection to network devices a hella lot easier on the move - rather than booting up the whole lappy.
Is there a *good* terminal emulation proggy (terraterm style) available that anyone knows of?

The Universal should be able to utilize a Bluetooth-to-RS232 device..
It can not use a USB-to-RS232, because the Universal lacks USB Host functionality..
As for the terminal software; I used z-term on my Himalaya..
I found it to be very good for my use..

Access USB device directly. Is it possible?

On WM5 has anyone been able to access USB devices like printer, Pendrive etc directly? Would be great to be able to print directly or access files from a USB memory stick.
Have heard of HP printer drivers for older versions of windows CE somewhere...

Using a usb device on the phone.
I know of no WM5 or WM6 phone for that matter that have a usb STACK on them that would allow them to use a usb device. They are designed to BE a usb device for a pc...not the other way around.

famewolf said:
I know of no WM5 or WM6 phone for that matter that have a usb STACK on them that would allow them to use a usb device. They are designed to BE a usb device for a pc...not the other way around.
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i think you are mistaken.. there are a couple new WM5 and/or 6 devices that have USB hosting support.. among them is the Athena, O2 Flame, and toshiba g900, and those WM devices exclusive from/for japan..

Yeah, it is the other device that must be able to read the PPC.
My stereo read my Tytn as a storage device. Can play music directly from the PPC. However it is the Stereo doing the recognizing job. Not the other way around.

I'd just like to clarify a few things:
1) USB has two sides - host and client and they are different by hardware and not just software so there is no "able" question here.
2) In cases like memory stick, printer etc. when your device uses what is connected to it, the phone must act as host. The reason there are few devices with USB host is mainly because to be fully implemented this standard must provide up to 500 mA current to the hosted device and of course thats a bug problem when working on battery.
(Any phone that does implement it, provides it "unpowered" so not all devices will work)
3) In cases where something is using your device like the stereo, the phone acts as a client so with the right piece of software (like WM5Storage) any phone can be used.

The fujitsu Pocket LOOX T810/830 can act as a USB hub.
Some devices have this capability but not a feature that is common.
Sam.

I'm really unqualified to discuss this in great detail, but why I got there was - I've read somewhere in these forums about Win95 emulators for ppc devices. Now if it could be possible to "emulate" just the USB stack portion of Win95, maybe, the ppc could be connected to devices like printers which would not require a powered USB connection.
That's all ...
Atul

emulating an os dont add new features to the hardware though

USB host

I've been searching but I haven't been able to find an answer...does the hd2 support USB host while running android? I'd like to b able to connect a web cam to it...I've have also found Bluetooth webcams, also wondering if using one of those with the hd2 would b possible....I'd just like to b able to video chat with the hd2 and I wouldn't mind carrying an attachment....
Sent from my Nexus One using XDA App

Hello,
Is there a chance to have USB host on HD2 under android builds ?
If not can we know what is the main problem ?
Android is based on a linux kernel isn't it ?
So, if USB host is supported under linux builds, why is it impossible on android ?
Thanks to teatch me !

I don't think android in general allows USB host on any device... that's the problem. The linux kernel supports it, but android doesn't. If you use ubuntu you can have usb host on the HD2.

Actually, the Notion Ink Adam runs Android and has USB host mode. With a bit of kernel hackery, this could well be possible on the HD2.
Using a USB Y-cable and providing external power, it should be possible to connect all sorts of things. I'm patiently waiting for this capability as I have a USB SSD HDD that I connect to my car's head unit that I'd like to connect to my phone when I'm at work

Major_Sarcasm said:
Actually, the Notion Ink Adam runs Android and has USB host mode. With a bit of kernel hackery, this could well be possible on the HD2.
Using a USB Y-cable and providing external power, it should be possible to connect all sorts of things. I'm patiently waiting for this capability as I have a USB SSD HDD that I connect to my car's head unit that I'd like to connect to my phone when I'm at work
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You're right, I have seen other android tablets with usb host, too. I remember seeing the devs explain somewhere why android on the hd2 doesn't have usb host... I thought I remember it sounding like it wouldn't be able to happen until a later version of android... but I could be wrong or misunderstood. I'll try to find where I read this.
Sent from my HTC bravo using XDA App

Hi.
http://forum.xda-developers.com/showthread.php?p=10797562
It's an easy way to use the USB connector in host mode, works under ubuntu.
with some adaptors you can build it also by using an y- cable.
But I think android for HD2 doesn't support anny usb features until now, perhaps someone will activate it in the kernel.
regards
mf_1

Yes, most of us are aware that host mode is usable whilst running Ubuntu. The problem is that Ubuntu is not really convenient as a main phone OS; Android is and some devices seem to have host mode while running Android.
Hopefully one of the devs will see this thread and give some insight.

[Q] Does the Nexus 7 have USB host mode?

Hi,
I was hoping I could post on the developer sub forum, but I have too little post, so I hope some of the devs can help me out.
I have in my possession a USB OTG cable, and I am able to connect it to a usb -> serial port, and send/receive data to and from a PC's hyperterminal. I am also able to send/receive data to and from one of my custom boards (something like arduino) that has a serial interface.
I've written my own program to perform this communication, but it is largely based on
- Slick USB 2 Serial
- USB Serial Monitor Lite
from the playstore.
Now, I am able to perform the above with my Samsung Galaxy S3, however, when I tried running my program, or anyone of the above programs (from the playstore) on one of the china branded tablets, which claimed to have USB host mode, it didn't work.
The tablet that I bought is ICOU7.
Now, I am desperately trying to get my program to run on a tablet, but I do not want to buy a tablet, and waste my money (which I already have with that china tablet) if it doesn't work, so can any of the devs out there, with a Nexus 7, confirm that the Nexus 7 is able to perform serial communication with PC/board through an OTG cable?
Do I need a specific OTG cable to do so?

I can't say for certain that it supports serial connections but it does have host mode. I've used keyboards/mice & flash drives without problem
Sent from my HTC One X using xda app-developers app

Depends on what you mean by "serial" device. If you mean CDC/ACM class usb device, then yes, nexus 7 can handle those, it creates /dev/ttyACMX like on desktop linux. This is only accessible if you have root, though. But, ACM devices are also supported by android USB Host API, which means you can write android app, which communicates with such device, and it does not require root.

Tasssadar said:
Depends on what you mean by "serial" device. If you mean CDC/ACM class usb device, then yes, nexus 7 can handle those, it creates /dev/ttyACMX like on desktop linux. This is only accessible if you have root, though. But, ACM devices are also supported by android USB Host API, which means you can write android app, which communicates with such device, and it does not require root.
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How about for starters, I just wanna communicate with a PC's hyper terminal through its comport? Will Nexus 7 be able to do that?

bagofcrap24 said:
I can't say for certain that it supports serial connections but it does have host mode. I've used keyboards/mice & flash drives without problem
Sent from my HTC One X using xda app-developers app
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The china tablet I had was able to support mouse/keyboard too. But it was unable to establish a link to my PC's hyper terminal, which I was able to do with my unrooted Samsung S3

USB Detect - Very Confused

Hi, I've been reading, re-reading and reading the Android SDK docs about USB connection.
I have developed and application which is quite useful however, after many days and hours of research I cannot for the life of me figure out how to detect:
When my handheld device is attached to any device (macbook, PC, laptop)
Communicate between connected device and handheld using USB
Detect keystrokes on connected device - when I type on the, for example, laptop which my handheld is connected to using USB I'd like to detect when I type on my laptop
Detect any other events such as opening of a browser, application or whatever on connected device using USB
I don't know the vendor information of device what the handheld will be connected to using a USB cable.
Can anyone point me in the right direction, I'm not asking for a solution more a tips, hints and maybe someone knows a library which already handles what I need to solve?
Many thanks in advance.

Detect Connected Laptop/Desktop Events USB
*edit* What I need is a way to find detect keyboard strokes from the device connected to my Android smartphone.
Is it possible to detect whether the handheld is connected to a desktop/laptop and using USB detect the events on the laptop/desktop?
It's looking impossible at the moment. I have spent quite a few days just figuring it out and have got no where.
Thanks in advance.
chronograff said:
Hi, I've been reading, re-reading and reading the Android SDK docs about USB connection.
I have developed and application which is quite useful however, after many days and hours of research I cannot for the life of me figure out how to detect:
When my handheld device is attached to any device (macbook, PC, laptop)
Communicate between connected device and handheld using USB
Detect keystrokes on connected device - when I type on the, for example, laptop which my handheld is connected to using USB I'd like to detect when I type on my laptop
Detect any other events such as opening of a browser, application or whatever on connected device using USB
I don't know the vendor information of device what the handheld will be connected to using a USB cable.
Can anyone point me in the right direction, I'm not asking for a solution more a tips, hints and maybe someone knows a library which already handles what I need to solve?
Many thanks in advance.
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