Database Users

USB Host disconnected pin?

hello,
i've heard that the universal WOULD support USB host drivers if an unconnected pin inside the universal was connected... could anyone tell me;
- if i manage to get the pin connected, would i get usb host features like on any other usb host phone with proper drivers?
- how hard is it to do?
- WHAT to do?

Oh man,really really nice interesting idea,hope it's true and possible,i hope someone knows all about that and soon writes here how that is possible maaan,would be really awesome to play with that

PalDragan said:
Oh man,really really nice interesting idea,hope it's true and possible,i hope someone knows all about that and soon writes here how that is possible maaan,would be really awesome to play with that
Click to expand...
Click to collapse
nice to hear someone else would like to get it to work too
EDIT: just found this on another thread on another forum about a PXA270 phone, someone was trying to get it to work, seems like all we need is
- switch the pin to host mode
- a driver (maybe zenos latest ones?)
After about 6 months of not touching this project, I decided to take another quickie look at the PXA270 docs and programmers reference. What I now see is very interesting.
Originally, I was looking at bringing out the USB Host 1 interface pins to the outside world as they were only terminated internally on the motherboard. Only about 1% of users might be able to do that.
I then started to look at the USB OTG (On The Go) interface that this chip supports. The USB OTG interface can be used as both a client and host. It shares the same pins as the Axim's serial port. Unfortuately, there are two serial control lines pins that are not brought out to the connector, so I scrubbed that idea.
This past weekend I picked up the programmer's design reference book to look at how the various USB interfaces are programmed and I saw something that I missed before as this was in the USB Client section. It appears (to me anyways) that the USB Client pins can also be programmed to act as a USB Host when in the USB OTG low power operation mode. The manual discusses how the additional control registers are used along with an output mux and charge-pump circuit (to provide the +5v). Refer to the PXA27x Processor Family Developer's Manual - dated Jan 2006, sections 12.5.2 and 20.
I will be looking at this more closely to see if a simple driver can be written (Afarre, where are you...) to switch the USB client pins into Host mode. In addition to this, the USB device drivers would be needed. Please remember, an additional IO interface circuit will be needed to connect between any USB device and the Axim as the proper voltages are not on the sync connector.
Click to expand...
Click to collapse

the_fish said:
nice to hear someone else would like to get it to work too
Click to expand...
Click to collapse
Suuuuuuuuuure,every crazy idea to abuse my PPC and i'm in for the quest

PalDragan said:
Suuuuuuuuuure,every crazy idea to abuse my PPC and i'm in for the quest
Click to expand...
Click to collapse
haha same, btw thats the link to the topic:
http://www.mobilitysite.com/boards/x50-x51-forums/140071-hacking-pxa270-internal-usb-host-24.html
Unfortunately, this means it's not for 99% of users as it requires a delicate hardware mod/addition to the motherboard (see my earlier posts & photos in this thread).
Click to expand...
Click to collapse
seems like they were still working on the driver (which we already have(?)) so we only need the hardware mod.... i guess...

the_fish said:
haha same, btw thats the link to the topic:
http://www.mobilitysite.com/boards/x50-x51-forums/140071-hacking-pxa270-internal-usb-host-24.html
seems like they were still working on the driver (which we already have(?)) so we only need the hardware mod.... i guess...
Click to expand...
Click to collapse
Ummm it's definately a crazy idea. We were discussing with mamaich (our guru) last year. Unfortunately it's not that simple to provide the power in sync connector, which is acting as a usb client (connector) at the moment.

tomal said:
Ummm it's definately a crazy idea. We were discussing with mamaich (our guru) last year. Unfortunately it's not that simple to provide the power in sync connector, which is acting as a usb client (connector) at the moment.
Click to expand...
Click to collapse
did you read in the thread i posted a link to? they had the same problem, but also found out that it maybe is possible to provide the nessecary +5v too, they were not sure tho, and i thought maybe zenos drivers contain the code to do that.

the_fish said:
did you read in the thread i posted a link to? they had the same problem, but also found out that it maybe is possible to provide the nessecary +5v too, they were not sure tho, and i thought maybe zenos drivers contain the code to do that.
Click to expand...
Click to collapse
Ok, seems there is a new idea of power injection from outside.
Anybody tried it...?

Couple of months ago, I was trying with outside +5v power but nothing happens

Win_XP said:
Couple of months ago, I was trying with outside +5v power but nothing happens
Click to expand...
Click to collapse
did you use one of those special USB cables that have two female USB-A, one for power and the other for the device to plug in?

http://htc-tytn-ii.handster.com/software.php?id=3339&for=HTC+TyTN+II
i don't know anything about this.. i'm actually looking to hook up something that normally has a rs-232 port.. but is also made in usb.. It draws power from another source
with something like that program doesn't that suggest usb host is possible..

http://gnalpgnarf.handster.com/software.php?id=3339&for=gnalpgnarf

hmmm....am I right or am I wrong?
Theoretically speaking the idea with a pin is supposed to redirect power from intake to output, however, not only Uni is incapable of supporting the output (you are essentially attempting to piggyback another device), the external support will not be possible due to pin configuration, regardless of the cable used.
Another thing, other than sheer experimentation, what would be the real point of such USB host?
STOP TORTURING YOUR UNIs, GUYS!!!!

I am pretty sure, that the Universal doesn't support USB Host.
It did not, it does not, it will not.
Sorry guys!
To be honest:
Yes, the PXA270 chip supports USB Host, but in most HTC devices they use this feature already for something else, like: WLAN or 3G connection.
DOMy

seen this?:
http://hhtinker.blogspot.com/2008/10/usb-host-on-treo-650.html

do you know what USB Host already busy?
it used as data call transfer radio <-> CE.
USB hub will not solve this problem easy.
also if you want attach it to miniUSB connector, you need additional OTG chip.
=> Host on universal is very hard to do, ...impossible.

Thinking of performing a hardware mod for USB hosted microsd/bluetooth(Kindle Fire)

Ok, so i'm ordering a replacement digitizer and I figure this would be a good time to try this out.
As you all know, we Kindle Fire owners have neither expandable storage or bluetooth. Hashcode's new 3.0 kernel has the proper kernel modules/support for USB hosting. Instead of having to plug things in every time I need/want extra storage I figure that i'll try and hook up the stuff inside.
So here's what I figure i'll do when I get all the materials:
I already have a mini bluetooth USB dongle that i've disassembled.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
And i'll be getting a mini USB microsd adapter that I can tear apart down to the same type of thing as the bluetooth dongle.
Now, the easy part is finding space to put them, there are a few gaps/spaces that I found for the bluetooth dongle, and placing the microsd adapter should be just as easy.
The hard part is getting the wiring all wired up on the inside, and this is where I need advice/input. Trying to solder the wires to the pins on the charge/USB port would be too hard and risky since they're so close.
I took apart a mini-b USB cable to use the pins to try and hook them up like that some way, but I don't have everything I need yet, so it's just a thought.
Ideas, advice, thoughts and/or comments?
Also, I will be documenting what i'm doing so that I can post a tutorial if I succeed.
I've also posted this in the Kindle Fire general forums. http://forum.xda-developers.com/showthread.php?p=25212300

Main problem with the SD adapter is that many USB SD readers behave badly if you insert the SD when the adapter is live - you need to insert the SD THEN plug the reader into a PC.

Entropy512 said:
Main problem with the SD adapter is that many USB SD readers behave badly if you insert the SD when the adapter is live - you need to insert the SD THEN plug the reader into a PC.
Click to expand...
Click to collapse
Hmmm, thanks for bringing that up, I didn't think of that. I'll have to see about putting a small switch in somewhere if I run into that issue.

Have you looked for another USB pinout on the board?
There might be one, if you can post an hi-res picture of the PCB I can try to find something useful

AraKs said:
Have you looked for another USB pinout on the board?
There might be one, if you can post an hi-res picture of the PCB I can try to find something useful
Click to expand...
Click to collapse
I was going to try and do that myself, but I couldn't find anything. Right now I ended up scraping off some of the black plastic around the pins at the point that they're going up and i'm trying to solder them alternating the top and bottom.
If you can find other places though that would be great. It might help me out, and it would def help others out if I succeed and write a tutorial.
Here are some hi-res shots from ifixit, unfortunately my real camera has a broken lens at the moment.
http://guide-images.ifixit.net/igi/BWbx2gTOKoo2SInC.huge
http://guide-images.ifixit.net/igi/SejZs5a65UTRcAYv.huge

There's something I don't understand here; won't doing this render the USB port unusable? Don't you need a hub if connecting more than one USB device? Can the USB port provide enough power for these additional devices?
Sent from my SGH-I777 using Tapatalk 2

scidon37 said:
There's something I don't understand here; won't doing this render the USB port unusable? Don't you need a hub if connecting more than one USB device? Can the USB port provide enough power for these additional devices?
Sent from my SGH-I777 using Tapatalk 2
Click to expand...
Click to collapse
You need the USB hub for power from what I understand. The microsd adapter doesn't require any power and i'm not sure how much the bluetooth takes, but since the other takes none it might work out. If they don't work together then it doesn't really matter to me cause I don't need bluetooth.
Also, about it making the USB port unusable, yes and no. If you look at this pinout diagram here http://www.kineteka.com/microusb-b.aspx you'll see that there are 5 pins. On a USB cable only 4 are used. On a USB otg cable pins 4 and 5 ar econnected telling the device that it's a host and not a slave. When pins 4 and 5 are connected are connected USB will not work at all(So no adb or file transfers, etc.) because the cable is being told it's a host device. Once those two wires are separated then USB will work again because it will see itself as a slave device.

I searched info trought the TI OMAP 4430 documentation about the USB implementation.
(i have to "hide" the link or i won't be able to post!)
Here you can find a block diagram of a reference USB implementation:
h_t_t_p://w!w!w.ti.com/pdfs /wtbu/OMAP4430_ES2.x_DM_Public_Book_V_D .pdf
Section
A.4.4.2 USBA0 PHY Implementation Example
Also, Section
2.1 Terminal Assignments
Shows the pinout of the processor
Table
Table 2-1. Ball Characteristics
Shows the chip connections
The document lists also USB0, USB1 and USB2 but i can only see ball pinouts for "usba0_*" and anything like "usba1_*" or "usba2_*".
So i think that there's only one USB connection and you'll have to solder a USB HUB somewhere between the CPU and the USB connector.

AraKs said:
I searched info trought the TI OMAP 4430 documentation about the USB implementation.
(i have to "hide" the link or i won't be able to post!)
Here you can find a block diagram of a reference USB implementation:
h_t_t_p://w!w!w.ti.com/pdfs /wtbu/OMAP4430_ES2.x_DM_Public_Book_V_D .pdf
Section
A.4.4.2 USBA0 PHY Implementation Example
Also, Section
2.1 Terminal Assignments
Shows the pinout of the processor
Table
Table 2-1. Ball Characteristics
Shows the chip connections
The document lists also USB0, USB1 and USB2 but i can only see ball pinouts for "usba0_*" and anything like "usba1_*" or "usba2_*".
So i think that there's only one USB connection and you'll have to solder a USB HUB somewhere between the CPU and the USB connector.
Click to expand...
Click to collapse
Thanks for the help, but how am I going to solder directly to the processor?
And if I could get the correct pins anyways there would be no need to use USB I could just hook the microsd up directly since the 4430 already has those.
If there was a data sheet somewhere out there for this specific board something like what you're suggesting might be possible, but it's not really the way it is now.
And i've never used USB host capabilities before, but from the videos i've watched people on other devices don't use a hub unless they hook up more than one device.

I see. You are right!
Anyway, i came up with another solution for the bluetooth connectivity: it requires a bit of soldering and a couple of kernel modules (or a custom-built kernel).
You can solder some wires from the serial port of the kindle fire:
http://forum.xda-developers.com/showthread.php?t=1525439
to a UART bluetooth module:
h_ttp://w_w.tdvdesign(dot)com/BluetoothModule/
Then write a script the brings up the bluetooth interface at boot.
In Linux should be feasible, in Android i don't know... maybe there's a praticular framework that needs specific drivers...
---------- Post added at 04:53 PM ---------- Previous post was at 04:23 PM ----------
Enable kernel bluetooth+UART HCI:
ht_tp://docs.blackfin.uclinux(dot)org/doku.php?id=bluetooth_over_uart

AraKs said:
I see. You are right!
Anyway, i came up with another solution for the bluetooth connectivity: it requires a bit of soldering and a couple of kernel modules (or a custom-built kernel).
You can solder some wires from the serial port of the kindle fire:
http://forum.xda-developers.com/showthread.php?t=1525439
to a UART bluetooth module:
h_ttp://w_w.tdvdesign(dot)com/BluetoothModule/
Then write a script the brings up the bluetooth interface at boot.
In Linux should be feasible, in Android i don't know... maybe there's a praticular framework that needs specific drivers...
---------- Post added at 04:53 PM ---------- Previous post was at 04:23 PM ----------
Enable kernel bluetooth+UART HCI:
ht_tp://docs.blackfin.uclinux(dot)org/doku.php?id=bluetooth_over_uart
Click to expand...
Click to collapse
**Disregard**This could help with bluetooth if I can't get USB host to work, but that still leaves no solution for the sdcard, which is my primary concern. I've actually gotten all the wires soldered onto the correct pins on the usb port, but I can't get USB host to work for any device, with or without the correct modules.**Disregard**
You got me thinking though, I could probably add a UART sdcard and GPS module on like that. Awesomeness, thanks for the idea. I'll try that out if I can't get USB host to work.

aaricchavez said:
You got me thinking though, I could probably add a UART sdcard and GPS module on like that. Awesomeness, thanks for the idea. I'll try that out if I can't get USB host to work.
Click to expand...
Click to collapse
I've also seen a lot of hardware mods that connected sdcards to gpio lines. That could be an option too.
For the sdcard over UART it's possible, but i'm concerned about the performances...
At 115200bps baud rate you get 14.0625KBps!!!

AraKs said:
I've also seen a lot of hardware mods that connected sdcards to gpio lines. That could be an option too.
For the sdcard over UART it's possible, but i'm concerned about the performances...
At 115200bps baud rate you get 14.0625KBps!!!
Click to expand...
Click to collapse
True, true. You seem to have more experience then I do at this. I'll prob buy a GPS UART module and do that. I have the wires soldered onto the USB pins on my Kindle, but I haven't had time to do anything more then that yet.

Thank you
A GPS module will be very useful.
A 7" tab it's portable enough to be carried around and used with a simple car mount...
I'll look for the needed kernel modules asap
Sent from my Nexus S using XDA

This is interesting:
ht__tp://wiki_openpilot_org/plugins/viewsource/viewpagesrc.action?pageId=950326

BUMP

webstas said:
BUMP
Click to expand...
Click to collapse
I'm just waiting for some stuff I need that I ordered offa ebay. The digitizer should be here tomorrow and the other stuff some time this week. I'll update when I get the stuff and start working on it again.

I don't really understand why using the usb-port should be a Problem. Just solder your what-ever-you-want-device to the original usb pinout, it's big enough. Solder a rly small switch (taken from an old mobile Phone for example) between pin 4 and 5 to change host and normal mode. Finally, if u need more power there of course is a battery inside the Kindle, get it from there
I'll receive my Kindle in a few days i hope (u can't buy it regularly in germany...), will play a bit with this stuff

Deehee3 said:
I don't really understand why using the usb-port should be a Problem. Just solder your what-ever-you-want-device to the original usb pinout, it's big enough. Solder a rly small switch (taken from an old mobile Phone for example) between pin 4 and 5 to change host and normal mode. Finally, if u need more power there of course is a battery inside the Kindle, get it from there
I'll receive my Kindle in a few days i hope (u can't buy it regularly in germany...), will play a bit with this stuff
Click to expand...
Click to collapse
I've already got the wires soldered to the pins, I just wasn't able to get USB host working. And there's no room for a switch right on the pins, but I thought of a good solution. Reed switches!
Other thread was created here, just want to keep all the threads up to date: http://forum.xda-developers.com/showthread.php?t=1632277
aaricchavez said:
The UART modules are only an idea, the main problem with going that direction instead of USB host is the drivers the modules would need(They all usually come with generic ones, but they would need to be customized for Android). I have very limited code/coding knowledge so I would need alot of help or soeone to do that part completely. I was going to pm Hashcode for help if I decided to try out the UART modules. Also, i'm unsure if more than one module can be used at the same time.
Like I just posted in the thread i'm still waiting on some stuff to arrive to actually get started on the USB host attempt. I have the wires soldered to the USB/Charge port pins, but since I don't have the microsd adapter or any more spare cords to rip apart I can't go further. I ordered about 10 different mini microsd adapters to take apart and see which works out the best.
Other people have USB host working, so shouldn't be difficult. I've just never used USB host before so i'm not real sure of what to expect.
The only downside is that there needs to be a switch of some sort somewhere to disable USB host so that adb/storage will work. I'm trying to think of something a little more elegant that having a huge hole in the case with a switch protruding out of the side. I'm going to go searching for some solutions and a super small switch.
All the UART GPS modules I found when searching "uart gps module" on Google are mostly from India and are between $30-50ish, the receivers look to be about the size of a quarter.
*http://robokits.co.in/shop/index.php?main_page=product_info&products_id=289
*http://robosapiensindia.com/robomar...n=com_virtuemart&Itemid=64&vmcchk=1&Itemid=64
*http://robosapiensindia.com/robosap...ategory_id=27&option=com_virtuemart&Itemid=64
I decided to look on Sparkfun and adafruit and i'm glad I did, it looks like they both have some modules, but I haven't looked around and dug through them yet.
*http://www.sparkfun.com/categories/4
*http://www.adafruit.com/category/35_58
All the optimism aside i'm not all too sure that we could get the GPS UART module to work. From what I see (First picture: http://forum.xda-developers.com/showthread.php?t=1471813) the UART output that Hashcode put into use only has two GNDs a TX and RX. The modules that I found all look like they need 8 connections. Adafruit has a nice pic of the connections labeled here: http://www.adafruit.com/products/746
If you're talking about microsd UART modules, as mentioned in the thread I created, someone made the point that it wouldn't make much sense because speeds would be way too low.
Click to expand...
Click to collapse
aaricchavez said:
I hate to double post, but I found the perfect solution for the switch. A reed switch or two plus a small magnet will work wonders
http://www.sparkfun.com/products/8642
Edit: Here are the switches that I am buying, they're the cheapest spdt reed switches I could find: http://www.newark.com/hamlin/mdrr-dt-15-20-f/switch-reed-spdt-co-1-5a-175vdc/dp/24C6463
This will allow USB host to be activated constantly and then deactivated easily with a neodymium magnet to use adb, USB storage and whatnot.
I'm pleased that I found such an elegant solution, no need to mess up the housing to put in a switch
Click to expand...
Click to collapse

Just curious about the status of your progress.....

Summary of limitations with Stock Firmware

Putting these out there so that dev's could address and all others should be aware of:
- No "USB Mass Storage" support. ICS out-of-the-box doesn't support this, however it can and has been added into ICS-based roms for other devices. Definitely possible to be addressed via software.
- Cannot move/install apps to the external microSD card. With ~4-5GB of available space on internal flash memory, this can become an issue for some.
- supports only microSD formatted in FAT32. Which effectively means if you have a video or other media file that is over 4gb in size, you cannot copy it onto the card. This is certainly a problem when you have HD quality movies you wish to play back on the device.
- wifi "can be" flaky. Many have experienced "low" wifi strength while only a few feet from their routers. Possibly could be improved through kernel driver updates, etc.
Please add on to this list as you come across limitations!
[EDIT]
- Per Macadamia Daze: Lack of Ad-hoc Wi-Fi support
- Per doraemon14: No face-unlock enabled in ICS
- [ CONFIRMED WORKING ]: Support for USB OTG (Host Mode).

I'm not sure who all cares, but it lacks ad hoc Wi-Fi support.

this is my first android device so not sure if this is only for ICS or all other previous versions.
- hope charging via USB is working even though it is not power-off.

nohctis said:
this is my first android device so not sure if this is only for ICS or all other previous versions.
- hope charging via USB is working even though it is not power-off.
Click to expand...
Click to collapse
Most tablets now need 2A to charge, USB only provides 500ma. I don't think it works, it's not an ICS limitation.

slopokdave said:
Most tablets now need 2A to charge, USB only provides 500ma. I don't think it works, it's not an ICS limitation.
Click to expand...
Click to collapse
thanks for the info. just assuming (more on hoping) it might also work while on power-on since charging via USB is working if the device is turned-off.

as far as the - supports only microSD formatted in FAT32. Which effectively means if you have a video or other media file that is over 4gb in size, you cannot copy it onto the card. This is certainly a problem when you have HD quality movies you wish to play back on the device.
I found that if you use a rar. format you can break the file up into small file. which let you put it on the sd card and then extract the file and put it back together in the card. it may take longer doing that but it works.

Bluetooth issues... device tends to pair and connect, then randomly disconnect, say it's still paired, then constantly pop-up the "Pairing" dialog asking for the PIN number. Once this happens the device will not stay paired.
This is happening with my PLX Kiwi OBD 2 adapter in my car... happens to my friend on the stock original firmware (I'm on the updated version) we're both rooted.. this happened before rooting as well though.
Two more cases can be seen here:
http://torque-bhp.com/forums/?wpforumaction=viewtopic&t=2076.00
http://code.google.com/p/android-bluez-ime/issues/detail?id=162

after i read this thread. I found a work around for usb host in the htc one s forum. Found by nerd65536
[Guide] USB Host
--------------------------------------------------------------------------------
USB host lets you hook up external USB devices to your phone, like a keyboard, mouse, USB drive, etc..
Unlike devices which are designed to support USB host, the One S doesn't provide power to the peripheral. That means we need a few more adapters/cables to get it to work (and we need an external power source).
Purchase links are listed for all the required cables/adapters.
You will need:
•USB Host adapter (The otherwise unused 5th pin on a micro-usb connector is grounded) dx.com/m-129671
•Mini USB power Y cable (this kind of cable is often packaged with portable hard drives) dx.com/u-65630
•Mini USB Female to USB A Female adapter This package comes with two, but you only need one. dx.com/u-55613
•Your charger
Assemble the cable:•The micro USB of the "USB Host adapter" connects to your phone.
•Your peripheral plugs into the female end of the "Mini USB Female to USB A Female adapter"
•The "Mini USB power Y cable" has three connectors:1.Mini USB connector - connects to the "Mini USB Female to USB A Female adapter"
2.Male USB A Power (the thinner wire) - connects to your charger
3.Male USB A - connects to the "USB Host adapter"
That's all. As long as your ROM supports the peripheral, it will work.
Some fun peripherals to try:•Powered USB hub (You can also power the adapter from one of the hub's ports)
•Keyboard
•Mouse (a cursor will appear on your device)
•USB flash drives and USB hard drives must be FAT32. You have to run a few commands to use a USB drive. Mount manually from the shell (use Connectbot or Terminal Emulator):
Code:
su
mkdir /media/sdcard/usb
mount -o uid=1000,gid=1015,fmask=0702,dmask=0702 /dev/block/sda1 /mnt/sdcard/usb
To unmount:
Code:
su
umount /mnt/sdcard/usb
http://forum.xda-developers.com/showthread.php?t=1629134

Diablo2424 said:
Bluetooth issues... device tends to pair and connect, then randomly disconnect, say it's still paired, then constantly pop-up the "Pairing" dialog asking for the PIN number. Once this happens the device will not stay paired.
This is happening with my PLX Kiwi OBD 2 adapter in my car... happens to my friend on the stock original firmware (I'm on the updated version) we're both rooted.. this happened before rooting as well though.
Two more cases can be seen here:
http://torque-bhp.com/forums/?wpforumaction=viewtopic&t=2076.00
http://code.google.com/p/android-bluez-ime/issues/detail?id=162
Click to expand...
Click to collapse
UPDATE on BT!
I just called Samsung Mobile Support and let them know about my issue. I mentioned that the original and current firmware's both have this problem, the agent put me on hold for a few minutes and came back saying that they are aware of this issue and the next firmware update (OTA) should be resolving it!
Thank you Samsung for having great customer service (I was only on the phone with Samsung 12 minutes total, including the non-existent wait time!)

yeah, recap:
you:Im having a BT issue
sammy: please hold, *call developers on other line* *yelling at developers* Bluetooth is broken! fix it!
sammy: *back on call with you*, we're aware of the issue and will be fixed in an OTA update.
just kidding although I love pounding Sammy every chance I get.

cbetso said:
after i read this thread. I found a work around for usb host in the htc one s forum. Found by nerd65536
[Guide] USB Host
--------------------------------------------------------------------------------
USB host lets you hook up external USB devices to your phone, like a keyboard, mouse, USB drive, etc..
Unlike devices which are designed to support USB host, the One S doesn't provide power to the peripheral. That means we need a few more adapters/cables to get it to work (and we need an external power source).
Purchase links are listed for all the required cables/adapters.
You will need:
•USB Host adapter (The otherwise unused 5th pin on a micro-usb connector is grounded) dx.com/m-129671
•Mini USB power Y cable (this kind of cable is often packaged with portable hard drives) dx.com/u-65630
•Mini USB Female to USB A Female adapter This package comes with two, but you only need one. dx.com/u-55613
•Your charger
Assemble the cable:•The micro USB of the "USB Host adapter" connects to your phone.
•Your peripheral plugs into the female end of the "Mini USB Female to USB A Female adapter"
•The "Mini USB power Y cable" has three connectors:1.Mini USB connector - connects to the "Mini USB Female to USB A Female adapter"
2.Male USB A Power (the thinner wire) - connects to your charger
3.Male USB A - connects to the "USB Host adapter"
That's all. As long as your ROM supports the peripheral, it will work.
Some fun peripherals to try:•Powered USB hub (You can also power the adapter from one of the hub's ports)
•Keyboard
•Mouse (a cursor will appear on your device)
•USB flash drives and USB hard drives must be FAT32. You have to run a few commands to use a USB drive. Mount manually from the shell (use Connectbot or Terminal Emulator):
Code:
su
mkdir /media/sdcard/usb
mount -o uid=1000,gid=1015,fmask=0702,dmask=0702 /dev/block/sda1 /mnt/sdcard/usb
To unmount:
Code:
su
umount /mnt/sdcard/usb
http://forum.xda-developers.com/showthread.php?t=1629134
Click to expand...
Click to collapse
Did you test any of this for this tablet? Does it even apply to this tablet (you are referencing a different device)? USB OTG (aka Host Mode) is a combination of having the right hardware + the right modules compiled into the kernel.

Diablo2424 said:
UPDATE on BT!
I just called Samsung Mobile Support and let them know about my issue. I mentioned that the original and current firmware's both have this problem, the agent put me on hold for a few minutes and came back saying that they are aware of this issue and the next firmware update (OTA) should be resolving it!
Thank you Samsung for having great customer service (I was only on the phone with Samsung 12 minutes total, including the non-existent wait time!)
Click to expand...
Click to collapse
I had the same problem along many others(on original firmware it wasn't even usable it rebooted constantly). I was trying to connect to one of this:
http://tunerstudio.com/index.php/cablesandbluetooth
I ended up returning the device as I mainly needed it for that a the moment and as it crashed using the browser etc, but thinking of buying again.
Did they give you an ETA for the update? Or have you tried another ROM?
Post up if you get it fixed

cbetso said:
as far as the - supports only microSD formatted in FAT32. Which effectively means if you have a video or other media file that is over 4gb in size, you cannot copy it onto the card. This is certainly a problem when you have HD quality movies you wish to play back on the device.
I found that if you use a rar. format you can break the file up into small file. which let you put it on the sd card and then extract the file and put it back together in the card. it may take longer doing that but it works.
Click to expand...
Click to collapse
FAT32 has a single-file size limit of 4GB. Yes, you could use rar or any other archive format to break the original file into pieces, however for example, an HD .mkv video file can be well over 5GB (single file). You could possible copy 1 of those large files into the 'internal' memory if you had the space -- but defeats the whole purpose of having expandable storage.

i dunno whether the one i write here is considered as flaws or not...
i don't like the way this tab arrange its homescreen and apps cabinet...there are some spaces left and can't be filled...i hate this...

lastiko said:
i dunno whether the one i write here is considered as flaws or not...
i don't like the way this tab arrange its homescreen and apps cabinet...there are some spaces left and can't be filled...i hate this...
Click to expand...
Click to collapse
A new launcher will fix that problem for you. I use apex launcher.. but there's other alternatives out there as well.. like go launcher
---------- Post added at 09:34 PM ---------- Previous post was at 09:31 PM ----------
Slowb00st said:
I had the same problem along many others(on original firmware it wasn't even usable it rebooted constantly). I was trying to connect to one of this:
http://tunerstudio.com/index.php/cablesandbluetooth
I ended up returning the device as I mainly needed it for that a the moment and as it crashed using the browser etc, but thinking of buying again.
Did they give you an ETA for the update? Or have you tried another ROM?
Post up if you get it fixed
Click to expand...
Click to collapse
Understandable if you needed it working right at that moment. I did ask for an ETA but unfortunately he said he didn't have one... he did say that it will be soon and to make sure my device is on wifi and ready for an update soon.. but I'm on a rooted stock firmware and froze the software updater lmao so that won't work... but I'll keep an eye out for am update and let everyone know. No I haven't tried any other ROMs yet as they all have some flaws that bother me... not too mention for my specific use I don't really need anything too fancy... just need BT for my PLX Kiwi OBD adapter for my cars diagnostics

is there anyone has stock room for p3100?

Diablo2424 said:
Understandable if you needed it working right at that moment. I did ask for an ETA but unfortunately he said he didn't have one... he did say that it will be soon and to make sure my device is on wifi and ready for an update soon.. but I'm on a rooted stock firmware and froze the software updater lmao so that won't work... but I'll keep an eye out for am update and let everyone know. No I haven't tried any other ROMs yet as they all have some flaws that bother me... not too mention for my specific use I don't really need anything too fancy... just need BT for my PLX Kiwi OBD adapter for my cars diagnostics
Click to expand...
Click to collapse
It's still too early, but there are some ROMs actively being worked on (and I'm hoping we see official support for this tablet from CM soon). With the recent MacMall $219 flash sale on this (they must have sold thousands in one day), and attractive MSRP, there could be a lot of interest from major developers.

Balthazar B said:
It's still too early, but there are some ROMs actively being worked on (and I'm hoping we see official support for this tablet from CM soon). With the recent MacMall $219 flash sale on this (they must have sold thousands in one day), and attractive MSRP, there could be a lot of interest from major developers.
Click to expand...
Click to collapse
Ebay tells you how much have been sold. It wasn't 500ish last I saw shortly before it ended.

I purchased the Samsung OTG cable and plugged it in the port. The cable has a female connector on the other end. I plugged in a 32GB thumb drive and it read it right away. I plugged in a small harddrive and the tablet reported that a high power device was plugged in and would not work without additional power. I paid $8.00 for the cable on amazon.com.

rapcon said:
I purchased the Samsung OTG cable and plugged it in the port. The cable has a female connector on the other end. I plugged in a 32GB thumb drive and it read it right away. I plugged in a small harddrive and the tablet reported that a high power device was plugged in and would not work without additional power. I paid $8.00 for the cable on amazon.com.
Click to expand...
Click to collapse
Would you be able to provide a link to that cable?
Thanks for the info! Does a mouse/keyboard work with no issue? The USB stick -- did it auto-mount and what filesystem is it formatted with (ie FAT32)? -- I'm curious if for example a USB stick that is formatted in NTFS can be used..
On another note, this confirms that the device itself can handle USB OTG to some degree -- meaning the modules are in place in the stock kernel and the hardware itself is capable of putting out enough power to handle certain devices.

[Xoom 2] Hardware hack - adding microSD via USB hard-wiring?

I'm just contemplating whether it would be possible to hard-wire a MicroSD card reader into the Xoom 2.
I've seen threads about trying to add the oem reader onto the motherboard, but what I'm thinking is (firstly testing) that a 2-way usb splitter will allow a usb microSD reader and a sync cable to work at the same time.
If they work fine, then surely splitting open the housings of the splitter and card reader, and soldering all connections instead of chunky usb plugs, then breaking the connection from the MoBo to the current usb out and instead connecting it to one of the splitter's outputs?
Perhaps behind the void microSD port cover would be just enough space to fit the circuitry?
Anyone's thoughts?! I know it's far easier to brainstorm something like this than it is to actually do such a fiddly job, but would it be possible? I saw on the Advent Vega forums (A crappy tablet I also have) the same thing has been done to hardwire a USB modem. Apparently the case of that device has just enough space to squeeze it all in.
Perhaps this has already been done?

This isn't going to end well lol
Good luck though and don't forget to YouTube your efforts for bragging rights and our praises!
Sent from my Motorola Atrix 2 with AT&T 4G

Extending your KF or: what to use the debug connector for

Hi all,
I already had an older post asking for what the unpopulated soldered line of pads close to the Samsung flash memory chip might be useful for. To me it's clear already that it has been used during development (e.g. from the kernel sources it looks like they used to connect an ethernet interface to those pins).
Yesterday I spent some time probing for signals with an oscilloscope. There's already good news to those who might think about extending flash memory size of the Kindle Fire: pads 1-4 are directly connected to the OMAP4's MCSPI1_{CLK,SOMI,SIMO,CS0}, pads 36-37 carry GND and pads 39-40 carry 4.2V (unregulated from battery I guess as it's also not switched off when KF is off). The MCSPI can be configured to 48MHz (according to the kernel sources) and we can start connecting SPI hardware to it. I did for fun with some tiny CAN controller I had lying around and that worked out of the box using the spidev and some generic CAN driver from the network section.
Luckily, most SDcards can also be accessed via SPI. I will also try that out soon. Transfer speeds will not exceed 6MByte/s, in practice probably only half of that, but it might be enough for those who dare to extend flash memory. While probing for signals, I also noticed that the Samsung chip seems to be accessed by a single wire only, too. I might be wrong on this, but it would certainly fit the picture as max. transfer speeds do exactly match the 208MBit/s for a 1-wire eMMC connection. Maybe someone else noticed the same already.
Unfortunately, I yet only found two other useful signals routed directly to those pads: DPM_EMU0/1 (pads 16-17). I suspect that 6 other JTAG signals are also routed there, but I can't probe for them as those pads can't be configured to be used as GPIOs.
More on this to come soon...
Best,
STYLON

I just realized that I should send out a quick warning to those that are a little less well equipped with electronics gear.
Most signals on that connector are connected directly to the OMAP4430 without any buffer. They're also from the 1.8 volt domain. That means you can't connect an SD card directly to those pins.
In order to connect an SD card you need at least a level shifter (like the SN74AVCH4T245 that is already somewhere on the board) to convert signals between 1.8v and 3.3v (that's what the SD cards expect). You may also need a 3.3v LDO and connect it to the unregulated battery voltage from that connector.
I'll do some experiments with that very soon, but just wanted to order an SD card slot (don't like to solder to SD card pads directly) and some other pieces before I go ahead.
Best,
STYLON