I have an Acer Iconia A100 Tablet with Adroid Honeycomb 3.2. I also have an Arduino-compatible board with USB Shield. (Arduino is an open source hardware platform that enables Android tablets/phones to do things like machine control over the Universal Serial Bus.)
My A100 won't communicate through the USB port to the board. I know it's not designed to work in USB Host mode, but this setup is designed for tablets with USB Accessory mode. Other posts say that Android 3.2 devices are supposed to work in USB Accessory Mode and with the Android ADK. (Note that I did enable "USB Debugging" in Settings - Applications - Development.)
Here is a picture of what I am trying to do:
www(Dot)seeedstudio(Dot)com/wiki/File:SeeeduinoADK_Setup.jpg
The Android phone can toggle an LED and receive input from a variable resistor. USB Power is provided by the board, not the phone.
I'm trying to troubleshoot why the A100 does not recognize anything connected to its USB port. Yes, I can transfer files to a PC over the USB, but that's about it.
I downloaded a terminal emulator app to my A100. When I put "USB devices" into the terminal emualtor, it never sees any devices connected -- not even my PC when I transfer files.
Another post talks about installing "Taboonay" on an Acer A500 unit to allow it to work in USB Accessory mode, but I could find nothing equivalent for the A100.
Can something be done to get the Acer A100/3.2 to work in USB Accessory mode?
This is a very interesting post.
First let me say I'm a noob but I will do the best I can with what I know.
I'm not sure if we will get full USB host or at least accessory mode. I think it will always be a multi-part issue. I think the micro USB port the A100 comes with doesn't the correct pins to provide power to ANY USB device. So what ever device is connected has to supply its own power. If this is correct I don't a way around having to supply any USB device external power(this doesn't seem like a major issue just a limitation).
At first I figured we could just use a powered USB hub and we would be good to go I guess not... at least not yet.
However on other devices developers here have been able to rewrite a USB driver to enable other modes and features. Right now the hope is that this can eventually be done. I don't think a solution is currently available. It does sound like you might of assistance in furthering that cause however and would encourage you join us all in seeing what we can get our A100s to do.
I hope this information was helpful for you.
NoSudo said:
the micro USB port the A100 comes with doesn't the correct pins to provide power to ANY USB device. So what ever device is connected has to supply its own power. If this is correct I don't a way around having to supply any USB device external power(this doesn't seem like a major issue just a limitation).
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You are correct, the micro USB port will not supply power to devices connected to it, even if it did it would drain the battery even quicker than what it does.
In order to get USB host / accessory mode to work the most we can do at the moment is compile a kernel module for it and try to load it in the current running kernel via insmod. Right now such a thing does not exist, but hopefully if I ever get some free time and if no one else has done it I'll be able to do it.
Sent from my MB860 using XDA App
Thanks to crossix and NoSudo for the replies. I have been beating my head against the wall for weeks trying to understand my problem. Apparently, some Honeycomb 3.2 devices can operate in USB Accessory Mode and some cannot. I could not find anything in the Acer A100 specs that addressed this, and Acer Tech Support has not been helpful.
One question: If the unit can somehow get upgraded to "Ice Cream Sandwich," would that solve the USB Accessory Mode problem?
roc524 said:
Thanks to crossix and NoSudo for the replies. I have been beating my head against the wall for weeks trying to understand my problem. Apparently, some Honeycomb 3.2 devices can operate in USB Accessory Mode and some cannot. I could not find anything in the Acer A100 specs that addressed this, and Acer Tech Support has not been helpful.
One question: If the unit can somehow get upgraded to "Ice Cream Sandwich," would that solve the USB Accessory Mode problem?
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No, ICS will not.. but if they enable the functions at the time they build the kernel that might do it.
Sent from my moto atrix running jokersax CM9 (ICS)!
crossix said:
No, ICS will not.. but if they enable the functions at the time they build the kernel that might do it.
Sent from my moto atrix running jokersax CM9 (ICS)!
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Click to collapse
That is right... assuming they have a driver for such a thing. Since it seems they are basing their kernel on the Ventana board, I don't see why not.
crossix said:
No, ICS will not.. but if they enable the functions at the time they build the kernel that might do it.
Sent from my moto atrix running jokersax CM9 (ICS)!
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Click to collapse
Off subject, but geez dude, how many devices do you have? I find your posts all over xda with a different "sent from my ________" all the time! Lol
ummmmm............ could you repeat that?
6stringandy said:
Off subject, but geez dude, how many devices do you have? I find your posts all over xda with a different "sent from my ________" all the time! Lol
ummmmm............ could you repeat that?
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Click to collapse
The MB860 is the Atrix. I should know, I'm running Joker's CM9 on it too
lol, I've been on these forums for a few years, so I've got a few different phones I've gone through including a palm treo 750, htc kaiser, the g1, nokia e75, htc aria, iphone 3gs, lg quantium and now the atrix.. I think my next phone is gonna be a tegra3
Sent from my moto atrix running jokersax CM9 (ICS)!
Ripped off by USB Capabilities
Recall that I have an Acer A100 with Android 3.2 and micro USB port that will not work in "USB Accessory" mode as the operating system would have me believe. How can I avoid a similar problem with my next tablet purchase? Could I have checked the tablet's specs more thoroughly? I feel ripped off and would like to know how to buy more intelligently in the future. Acer tech support does not have a clue about this and does not care.
Thanks to the respondents of this post.
yeah, as they said, the micro-usb port on board won't supply power to devices connected through it.
I tried THIS but didn't work, so, maybe if we could make an usb to micro-usb cable with its own power supply it could work (not sure at all)
USB Accessory Mode not Host Mode
Thanks, but the USB power is not an issue here. The board I am using (www(dot)seeedstudio(dot)com/depot/seeeduino-adk-main-board-p-846.html) receives external power. My tablet is supposed to operate in USB accessory mode in which it can send out USB information to this board which provides power.
I am trying to find out, before I buy my next one, whether the phone/tablet can handle this "USB Accessory mode." Some devices can handle it as per this picture: www(dot)seeedstudio(dot)com/wiki/File:SeeeduinoADK_Setup.jpg. The Acer A100 cannot. How could I have determined this before I bought it??
roc524 said:
Thanks, but the USB power is not an issue here. The board I am using (www(dot)seeedstudio(dot)com/depot/seeeduino-adk-main-board-p-846.html) receives external power. My tablet is supposed to operate in USB accessory mode in which it can send out USB information to this board which provides power.
I am trying to find out, before I buy my next one, whether the phone/tablet can handle this "USB Accessory mode." Some devices can handle it as per this picture: www(dot)seeedstudio(dot)com/wiki/File:SeeeduinoADK_Setup.jpg. The Acer A100 cannot. How could I have determined this before I bought it??
Click to expand...
Click to collapse
The best way to test something like that out is to bring something that requires being plugged into a usb to operate (like your keyboard) or you could Google "<device name> tech specs".
Sent from my ADR6400L using xda premium
Any news on this ...?
Has a usb driver been developed or something (will it be on ics )?
crossix said:
You are correct, the micro USB port will not supply power to devices connected to it, even if it did it would drain the battery even quicker than what it does.
In order to get USB host / accessory mode to work the most we can do at the moment is compile a kernel module for it and try to load it in the current running kernel via insmod. Right now such a thing does not exist, but hopefully if I ever get some free time and if no one else has done it I'll be able to do it.
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
Crossix did you have time to check this...?
Thanx...
Sent from my A100 using Tapatalk
Thanks for all the work, would love this on my tablet as well.
In the service manual I have found the scheme of our motherboard. Our device's HARDWARE doesn't support USB host at all.
New here, I just bought an Acer A100 specifically for using it with the android ADK based off this (apparently I can't post links? ok just google "Tablets and the Android Open Accessory Development Kit (ADK)" and click on the first result) website's recommendation. And now I find that it doesn't work at all? Nothing I can do about this?
Hello this is my first post. I found this really good tutorial on how to properly clean your galaxy y port so that it may fit properly.
This is really useful and is applicable for all phones that has micro usb on it.
Here's the link
http://forum.xda-developers.com/showpost.php?p=30778095&postcount=1.
give credits to who ever posted that tutorial and spare some for me.. joke.
.
Rervered for future updates
ill try this
Edit:i wont try.. cutting edge?
My device has passed away. No screen... Hardkey combinations doesn't work. Pc connects with microusb on com port via Quallcomm HS-USBDLoad driver. Quallcomm Product Support Tool deretcts but i dont have any phone image in hex.
Odin can not detect my phone.
So i came to last solution. I will buy a jig. But when i search on the net there are jigs for specific models. I didnt came across to a jig for SGW.
Do you have any knowledge on this issue. I dont want to waste money to buy lots of jigs. Is there any appropriate jig for SGW I8150?
I run out of all solutions. Please help me....
Please android experts help us to debrick.
The phone on connection just shows and goes repeateadly....
Cant tranfer anything because of this.:crying:
SRY I DIDNT SEE THAT FIRST THREAD FOR QUESTION, My BAD SORRY.. but plz reply
Try a different cable otherwise could be the USB port. No need to freak out, and Asus support could also help with warranty issues.
tried 2 different cables.. doesnt work . :/
Tried 4 different ports still same .. ://
Have you tested with a different PC? Does it charge ok with wall charger using existing USB cable(s)?
Do you have ASUS_Android_USB_drivers_for_Windows installed? http://www.asus.com/us/Phone/ZenFone_2_ZE551ML/HelpDesk_Download/
If you have any other questions or concerns please feel free to contact me direct at [email protected]
Sincerely,
ASUS_USA
Is it possible for K10 to support On The Go connection by rooting and installing a 3rd party application software??
Thanks for response.
I think NO.
Phone MicroUSB must give 5 Volts alimentation for connected usb device, and like I understand our K10 motherboard and kernel can't make it
Thanks sir.