Related
Hello,
Can you have USB OTG and phone charging at the same time? Or even better: HDMI + USB OTG + charging? Without power the phone discharges fast, not to mention - with HDMI out connected I won't be able to connect external HD with movies... Oh, bother...
Or is there some magic do-it-all dongle?
I need it too .
I hate some cable in my bag. One Cable for all is great
USB OTG does not support charging as it has to supply current to the external device.
MHL (HDMI output) does.
Dude, I really hope I'm not misunderstanding, but what is the problem to which 'USB OTG and charging at the same time' is the solution?
Surely you pop your USB stick in, transfer the file and then... stick the charger/HDMI cable back in... and stream wirelessly/over your network?
What were you hoping to achieve? There are several options...
Just taking a guess... maybe he wants to use keyboard and mouse etc with his phone, desktop style
Sent from my GT-I9100 using XDA App
Or maybe I just want to play anything from my 1TB HD WITHOUT deciding what should I copy to my phone (which is a waste of time...)
ssuukk said:
Or maybe I just want to play anything from my 1TB HD WITHOUT deciding what should I copy to my phone (which is a waste of time...)
Click to expand...
Click to collapse
I wanted to do the same thing but it isn't possible . I do however stream from my nas if I don't want to copy stuff to the phone.
Technically, the USB-OTG standard includes provisions for handling this.
There are several occasions where you would want to plug an accessory into a USB-OTG port and still be able to hold the state-of-charge in the host device.
The specific document: Battery Charging Specification, rev 1.2
ACA subsection (Accessory Charger Adapter)
The ID_OTG pin acts as an input in this mode of operating, indicating whether or not the host is allowed to charge.
Figure 6-6 shows the typical architecture.
Sounds promising. I will look into that! Thanx.
Any news on this?? :fingers-crossed:
so can we use otg and mhl at the same time without charging
Yes, this is pretty much possible. I have implemented the aforementioned OTG ACA support and got it to CyanogenMod9 upstream. Anything which uses the same kernel (or, if you can cherry-pick changes and compile your own kernels), could use that too. Changeset URL: _ttp://review.cyanogenmod.com/#/c/15850/
You need to use a regular USB OTG cable, but place a 36 KOhm resistor between ID pin and GND, then you should connect GND and Vdd to some power source. I used an MHL adapter which I had no use for, as it had two of three connectors I needed. This setup allows me to watch movies from 2.5" notebook hard drive while simultaneously charging my phone if I plug in a 2A-rated adapter. Note that it's impossible to use 650mA charging rate due to chip restrictions (USB HC is too stupid to understand the direction of current flow, and it reports an over-current condition); you have to settle on 450mA.
If you don't know how to solder, or if you use something else than CyanogenMod9 and cannot compile your own kernels, you are out of luck.
I have tried to find an existing USB OTG ACA dongle, but I was not able to find any. If you will be more lucky than me, you can just use it--my patch is compliant with USB specification and will support any compatible dongle.
It's possible.
You need cable y usb. I did it myself.
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc6/s720x720/206110_371488136240210_1887794367_n.jpg
watch icon battery
What parts do I need?
wojtaz131 said:
It's possible.
You need cable y usb. I did it myself.
http://a2.sphotos.ak.fbcdn.net/hphotos-ak-snc6/s720x720/206110_371488136240210_1887794367_n.jpg
watch icon battery
Click to expand...
Click to collapse
What specific parts did you use for your OTG / Power Y
The ability to charge my device while playing video off a usb flashdrive is my goal for this.
ZedZardoz said:
What specific parts did you use for your OTG / Power Y
The ability to charge my device while playing video off a usb flashdrive is my goal for this.
Click to expand...
Click to collapse
A few wires. See my post above for the details.
whitequark said:
Yes, this is pretty much possible. I have implemented the aforementioned OTG ACA support and got it to CyanogenMod9 upstream. Anything which uses the same kernel (or, if you can cherry-pick changes and compile your own kernels), could use that too. Changeset URL: _ttp://review.cyanogenmod.com/#/c/15850/
You need to use a regular USB OTG cable, but place a 36 KOhm resistor between ID pin and GND, then you should connect GND and Vdd to some power source. I used an MHL adapter which I had no use for, as it had two of three connectors I needed. This setup allows me to watch movies from 2.5" notebook hard drive while simultaneously charging my phone if I plug in a 2A-rated adapter. Note that it's impossible to use 650mA charging rate due to chip restrictions (USB HC is too stupid to understand the direction of current flow, and it reports an over-current condition); you have to settle on 450mA.
If you don't know how to solder, or if you use something else than CyanogenMod9 and cannot compile your own kernels, you are out of luck.
I have tried to find an existing USB OTG ACA dongle, but I was not able to find any. If you will be more lucky than me, you can just use it--my patch is compliant with USB specification and will support any compatible dongle.
Click to expand...
Click to collapse
Duh, I read right past this post... 36KOhm on ID <<< got it, now to experiment!
wow!
it would be amazing if such a device existed!
Hello,
I'm new to this forum as i didn't need it yet but now I have a question.
I know this thread is kind of old and I'm not sure if there are still (m)any people using a GT-I9100... though it would be interesting if anyone found a solution on this topic.
I read several threads where people were discussion if charging and OTG is possible at the same time but no one could verify a specific resistor. Actually i tried a resistor valued 124k between GND and ID but it didn't work. I also read about 36k and other values but nothing verified. Could take a while to try several resistors but i really no one knows a solution i'd try this
So just so sum up, i don't need "MHL and charging" or "audio out and charging". The mode i'm looking for is "OTG and charging".
My Goal: a Docking Station with mouse, keyboard, flash drive(s) and charging to remote control my computer with a software like splashtop.
Hopefully anyone has useful information on this, thanks a lot for any kind of support
burnsn said:
So just so sum up, i don't need "MHL and charging" or "audio out and charging". The mode i'm looking for is "OTG and charging".
Click to expand...
Click to collapse
You need a kernel patch to make it work. See http://forum.xda-developers.com/showpost.php?p=30141914&postcount=12
whitequark said:
You need a kernel patch to make it work. See http://forum.xda-developers.com/showpost.php?p=30141914&postcount=12
Click to expand...
Click to collapse
Thanks for your answer!
Today i made my 36k cable, this weekend i should have some time for the kernel patch - hopefully
I still have some questions about the kernel as i didn't use any custom ROMs etc on my phone. All I have is a "standard" root kernel without any further changes but root. Need some hours to read into this. What i didn't understand: Do I have to use a specific CM9 or can i use any CM9 (or maybe CM10 or any other CM past 9)?
I wasn't able to get the link working "_ttp://review.cyanogenmod.com/#/c/15850/" when replacing "_" with "h". What can I find on that page?
***EDIT***
USB Host DOES work with Flash Drives. For information see post 3: http://forum.xda-developers.com/showthread.php?p=37201971#post37201971
This is now my main focus. So I figure why not everyone post up what devices they got to work with the Kindle Fire 2 and/or what methods it took for you to do so.
3x Different Flash Drives: Not Working However one of their LED's Illuminate
USB Keyboard: Not Working
Logitech M570 Wireless Trackball: Working
I also tried a non powered hub, it didn't work. The Green LED Illuminated but nothing more. When connected to my Galaxy S 3 I can have multiple devices attached at a time. I tore the Hub down and found that it has a blank slot for power. I wired soldered in a 0.75a Samsung Wired Charger to it. It Illuminated the LED, As well as it illuminated the Power LED in Orange on the Kindle but no devices worked on the Hub. I tested the power output of the USB Ports and it was a little more than 5v per port.
Device: Kindle Fire 2
Rooted and TWRP'ed with the Nightly of CM10.1 1-20-2013
Will keep trying. As stated in another thread, that its simply power. After testing these things out, I don't think its power related. Either the kindle just doesn't have the "Drivers" if thats what you'd call it, or it simply can not run anything but a mouse. I hope that is not the case. It will ruin all appeal in my eyes.
If you're rooted, have you tried installing StickMount?
Might work for the flash drives.
I tried, Stickmount tries. You can tell its trying to work something out. So more tests with a cut up usb cable on the OTG cable does in fact show there is a voltage issue. My Galaxy puts out perfect 5v. The Kindle puts out around 2.5v. I tried making another OTG cable but failed. I guess its just not getting connection to the extra pin. So I have a USB Extension I'm gonna split open and power it. So I don't have to hack up my only working OTG.
The main issue I'm having with this is, my current power unit is a measly 0.75a. And It charges the device. So I figure there will still be a voltage issue due to the device charging. So I could cut the red wire going to the device for now. But not sure if the device will realize this somehow and just not work. Thoughts? I've seen this done before when someone made themselves a powered OTG Hub system out of a couple USB Cables.
I'll continue till I'm too tired to think hehe.
***Edit***
Ok couple hours later.... lol I had a USB Extension, I cleanly just slit it down the m iddle and soldered in the two power wires from a samsung micro usb charger. The Power is 5v at 0.75a. So its not much. I know it wouldn't charge my nexus nor Galaxy Tab, but it charges the Kindle, or at least the kindle says it is. I doubt it really is. Anyway I soldered it in, cleaned up the surgery started some testing on my phone first. I connected a Micro USB cable to one end and then the other to my phone, and then the Kindle. It charges, or again says it is (*kindle might require more amperage). So Next I connect the OTG Cable to the other end and connect it to my phone, It charges through the OTG Cable. Next the Kindle, it does not charge the kindle. Possible amperage requirements, I don't know yet.
So onto the test without StickMount, Failure. It acts the same.
Test with StickMount, Well I'll let this screen shot explain most of it:
{
"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"
}
It worked! StickMount notification pops up and I found the flash drive in the current location. Inside the SD Card under a folder called /usbstorage/sda1/. Not exactly my first choice, not sure if this can be changed to go into mnt or somewhere else. The Device itself doesn't notice the flash drive. So if you go into System/Storage, it does not show the flash drive. But it is fully functional. I accessed some files without any issues.
So my final consensus: The Kindle Fire 2 currently has OTG/USB Host Capabilities. From the USB Host Diagnostics I ran, its fully functional. However the main issue is Power. The second issue is the device on the most current (1/20/2013 CM10.1 Nightly) rom doesn't have the proper... I don't know the right wording for it, but lets say drivers since I'm a pc guy. I'm sure with more development, it can control any device with the only issue being power related. This takes away from the meaning of "On The Go". Having some sort of 5v power source connected to your device while your trying to use a hard drive or something else is going to be a pain in the ass for most people. For me it really does not matter since the device is going to be setup in my car for media sourcing as well as game play. So a 32gb flash drive and a Xbox 360 controller is all I will be using.
I will be doing more testing with multiple devices but it is 4am right now. One more thing, Bluetooth abilities are possible with a cheap dongle. However for some reason the Kindle recognizes it as a physical keyboard. I have tested this on other devices in the past so I believe it is possible with some more development. But that's far in the future and still of course require additional power.
Goodnight guys.
I have 3 different thumb drives.
Sony 4GB = does not work
SanDisk cruzer slide 16GB = does not work
SanDisk cruzer 8GB = Works
The regular cruzer is probably 5+ years old. I have access to others and will update my post when I get them.
I'm on PowerPoint45 cm 10.1 using chainfires stickmount.
Sent from my Nexus 7 using Tapatalk HD
Nice. The regular flash prob requires less power. I noticed one of mine which was larger almost worked. But would shut off prob to not enough power. But a newer one wouldn't light up at all.
Plans for today: To re build that USB Hub I was messing with last night. I desoldered the USB cable off of it to solder in a Micro USB, But I don't remember if it worked. I then tried to turn it into an OTG direct 4port hub but nothing happened. So I'm sure I screwed something up. But the initial results should be a powered, 4port Micro USB OTG Hub. I just hope I have enough juice to make it work for not only charging the Kindle but powering the devices on the hub. I have a Galaxy Tab Official 2.0a car charger I can try out. I want to be able to have at the least, a 32gb Flash Drive and a 360 Gaming Controller.
Well I got some done today. I found an old phone charger that was 1a. I finally just used my OTG Cable and soldered it in place of the std usb connector on a cheap USB Hub. I'm sure everyone has the same hub I'm using, I have two, one says Microsoft on it, the other says AMD but they are super cheap and are given out everywhere you go:
Its a non powered USB hub, however when opened up there is a bare spot for a power connector. Middle pin is 5v + and the two around it are common Ground -.
Don't be strayed by my crap solder work. I'm using a cheap harbor freight soldering iron and the new charger has very thick wire so it didn't really fit in the small holes. The ground is just directly connected to everything else thats ground related so I grounded it there. That way the two wires aren't soo close together.
I have now successfully tested 3 flash drives, NTFS, Fat32 and some strange Fat32 drive plus my Trackball. As well as this I have successfully charged my Galaxy SIII off of the hub. I wouldn't exactly recommend this unless your running like a legit 2a charger. I only did it to test out power requirements. I think either my cable is damaged too or I'm at the limit of power the small 1a can handle because every once in a while the hub shuts off. I think its just cable related.
Here is everything connected as you can see.
However the tablet it self is not charging. At least the icon on the notification bar doesn't say so. I have tested the voltage here and its 5v. But IDK? Maybe the Kindle wont allow it? BUT, with all my testing, the battery has stayed at 88%. I'm gonna try to kill it some more. Maybe with some transferring files between drives.
lol As I'm typing this, I sit down for a second with the tablet on the carpet floor and just stare at it. I've noticed that some reason the led turns off and on at random times. But I've never seen it say its charging. Well the screen just dimmed but didn't shut off so I get up to check real fast and when I turn it on, it says 88% - Charging! But then instantly goes back to 88% - Not Charging when the screen lights up. And there it goes again (Please bare with me as I'm doing this all this very second.) Looks like it just needs some more amperage. 1a is not enough to power everything and charge the device.
I was worried that the kindle wasn't going to support Charging OTG. Well I happen to have a spare 2a Galaxy Tablet charger and no Galaxy Tab.... I'll try it out and get back to you guys!
nFiniti said:
Well I got some done today. I found an old phone charger that was 1a. I finally just used my OTG Cable and soldered it in place of the std usb connector on a cheap USB Hub. I'm sure everyone has the same hub I'm using, I have two, one says Microsoft on it, the other says AMD but they are super cheap and are given out everywhere you go:
Its a non powered USB hub, however when opened up there is a bare spot for a power connector. Middle pin is 5v + and the two around it are common Ground -.
Don't be strayed by my crap solder work. I'm using a cheap harbor freight soldering iron and the new charger has very thick wire so it didn't really fit in the small holes. The ground is just directly connected to everything else thats ground related so I grounded it there. That way the two wires aren't soo close together.
I have now successfully tested 3 flash drives, NTFS, Fat32 and some strange Fat32 drive plus my Trackball. As well as this I have successfully charged my Galaxy SIII off of the hub. I wouldn't exactly recommend this unless your running like a legit 2a charger. I only did it to test out power requirements. I think either my cable is damaged too or I'm at the limit of power the small 1a can handle because every once in a while the hub shuts off. I think its just cable related.
Here is everything connected as you can see.
*PIC REMOVED BY ME BECAUSE CMON, IT'S A QUOTE, YOU'VE SEEN THE PIC ALREADY!*
However the tablet it self is not charging. At least the icon on the notification bar doesn't say so. I have tested the voltage here and its 5v. But IDK? Maybe the Kindle wont allow it? BUT, with all my testing, the battery has stayed at 88%. I'm gonna try to kill it some more. Maybe with some transferring files between drives.
lol As I'm typing this, I sit down for a second with the tablet on the carpet floor and just stare at it. I've noticed that some reason the led turns off and on at random times. But I've never seen it say its charging. Well the screen just dimmed but didn't shut off so I get up to check real fast and when I turn it on, it says 88% - Charging! But then instantly goes back to 88% - Not Charging when the screen lights up. And there it goes again (Please bare with me as I'm doing this all this very second.) Looks like it just needs some more amperage. 1a is not enough to power everything and charge the device.
I was worried that the kindle wasn't going to support Charging OTG. Well I happen to have a spare 2a Galaxy Tablet charger and no Galaxy Tab.... I'll try it out and get back to you guys!
Click to expand...
Click to collapse
This looks good! If you want, once you are done with the testing, I can try and write up a guide with your words on how to do it then let you post that. I did the same for some of the stickied threads. It looks like you're almost done and I think this would be a really good info thread once compiled nicely. Stuff like how to do OTG, what works, what needs a powered HUB, stuff like that. I personally will probably never use OTG, but I see the value and I like what it can be used for.
Best of luck!
That's nice. lol I understand I talk a lot, but when it comes to things I must have, like more than 5gb of memory on a device that should have a few TB . It would be nice for others to try out things to see what works and what doesn't. Because to have a powered USB Device is kinda not the point of OTG "On The Go". But like someone figured out that one of his older Flash drives worked, so hopefully others chime in too.
If you wanna do that, you have my approval. Just make sure it suits what I did, "Dedicated OTG". or "Guaranteed OTG". Since that's what I was mainly working towards. This discussion thread is mainly to locate what works and what doesn't and the main OTG Capabilities of the Kindle Fire2. I don't plan on changing much else to what I have already done except adding a larger psu to the hub so it charges the device while powering the hub and its devices for my own personal gain. I want to keep this open so people can throw up what they have learned as well so the information is out there for others. I personally hate going into a device and not knowing.
nFiniti said:
That's nice. lol I understand I talk a lot, but when it comes to things I must have, like more than 5gb of memory on a device that should have a few TB . It would be nice for others to try out things to see what works and what doesn't. Because to have a powered USB Device is kinda not the point of OTG "On The Go". But like someone figured out that one of his older Flash drives worked, so hopefully others chime in too.
If you wanna do that, you have my approval. Just make sure it suits what I did, "Dedicated OTG". or "Guaranteed OTG". Since that's what I was mainly working towards. This discussion thread is mainly to locate what works and what doesn't and the main OTG Capabilities of the Kindle Fire2. I don't plan on changing much else to what I have already done except adding a larger psu to the hub so it charges the device while powering the hub and its devices for my own personal gain. I want to keep this open so people can throw up what they have learned as well so the information is out there for others. I personally hate going into a device and not knowing.
Click to expand...
Click to collapse
I should get an OTG cable. I have a small flashdrive, not sure about the name or brand since the size made it temporarily misplaced. It's the same size as the wireless receivers though for most modern mice and keyboard so it's SUPER small, which I actually wouldn't mind tucking the cable into my case, plus it's 32GB. The issue on PC, is the transfer rate is a little low, but that may be because it uses so little power, which I'm hoping.
Any good places to get an OTG cable?
Ebay, Amazon (great place for cables)
https://www.google.com/search?q=OTG...29,d.aWc&fp=4a19662fa4882be9&biw=1920&bih=965
Just a quick search. You can also make one, if space is an issue. You just need a MicroUSB and a female USB. Pin 5 gets soldered to pin 4 on the MicroUSB and bam! Making one would help with space issues since you can tuck the wires easier. If you are good at soldering.
nFiniti said:
Ebay, Amazon (great place for cables)
https://www.google.com/search?q=OTG...29,d.aWc&fp=4a19662fa4882be9&biw=1920&bih=965
Just a quick search. You can also make one, if space is an issue. You just need a MicroUSB and a female USB. Pin 5 gets soldered to pin 4 on the MicroUSB and bam! Making one would help with space issues since you can tuck the wires easier. If you are good at soldering.
Click to expand...
Click to collapse
Is an OTG cable special or just F-USB and M-MicoUSB?
If it's just those, then I can go poke around Frys and Radioshack for one.
I don't know anything about soldering, how much is a good kit to get started? I think a friend of mine has one and knows how to use it, so I can ask him, but I realize it's something I should learn especially with the hardware mods I would love to do. If I can't find a cable in stores, or if it's special (I ask that because most employees at frys and whatnot aren't very helpful or knowledgable, so I don't want them giving me something that won't work, but if it's just those ends I'm looking for, I can do that) then I may just look into soldering my own and learning that. I see they're around $50 online but I don't want to screw myself over there.
You can chose a decent soldering iron anywhere from 15 to like 80 bucks. I recently saw some nice ones with adjustable power levels for good price. And tons of different tips. My brother Skorpn has the more expensive one that heats up fast and has adjustable power settings to fit any projects needs. Hr has a nice soldering station I wish I could use more. I however just have a cheap harbor freight iron with a fine tip from radio shack and I use the thinnest silver solder avail there as well. Flux is also a must.
Anyway. Otg mode is accomplished on the micro USB side. They have 5 pins instead of 4. The 5th is used for doing all sorts of things with the right add one tho. If you solder in a small wire to it and jump it to pin 4 which is ground, it turns on otg. Not really hard to do. You can make one decently. Just need a good micro USB cable and a female normal USB cable. Solder them together and then do the otg modifications.
Other than doing it yourself, they are very cheap. But if you have the spare cables, it doesn't hurt to play around.
Sent from my Amazon Kindle Fire2 using xda app-developers app
I've got my USB mouse to work using otg cable, is there any chance using it could damage my kindle, this Mount app I use says it can damage the kindle because of the power output
Sent from my Amazon Kindle Fire2
I don't know what ap your talking about. But no. The Kindle Fire 2 only puts out half the voltage when in OTG Mode. So only certain things will work without additional power. Your mouse will work just fine, especially if its a wireless mouse, since the wireless device doesn't require hardly any power. Some other devices will work too. You don't need a mount app for using devices, only for Flash Drives. And so far out of every one I've used the best one is Chainfire's StickMount. Chainfire is the creator of Superuser.
Anyways, I'm not using a 2a charger to power my USB OTG Hub, and it powers all 4 devices and charges the device with ease. Cannot wait to have this thing installed.
OTG testing
After reading this thread I thought I would have a go and do some testing myself. so I found a USB y cable teamed that with a female to female USB adaptor so it would extend my OTG cable but allow me to pipe in some power (5v off a arduino) off the y cable. I have got my mouse working and USB flash drive but I cant get my Xbox 360 wired controller to work
facelessloser said:
After reading this thread I thought I would have a go and do some testing myself. so I found a USB y cable teamed that with a female to female USB adaptor so it would extend my OTG cable but allow me to pipe in some power (5v off a arduino) off the y cable. I have got my mouse working and USB flash drive but I cant get my Xbox 360 wired controller to work
Click to expand...
Click to collapse
You know the amperage of the power source you are using? It might just be not enough power. Because the device itself will take from it also. Its pretty much splitting it. Which is why I went with a legit Galaxy Tab 2a charger since its one of the most powerful chargers I've come across. I hope it works. Since bluetooth doesn't work on the OTG yet, I need the 360 controller to work. I will be trying a wireless controller and one of those Microsoft adapters soon. Hopefully it works! I'd love to play some video games in the car
nFiniti said:
You know the amperage of the power source you are using? It might just be not enough power. Because the device itself will take from it also. Its pretty much splitting it. Which is why I went with a legit Galaxy Tab 2a charger since its one of the most powerful chargers I've come across. I hope it works. Since bluetooth doesn't work on the OTG yet, I need the 360 controller to work. I will be trying a wireless controller and one of those Microsoft adapters soon. Hopefully it works! I'd love to play some video games in the car
Click to expand...
Click to collapse
You have a good point there, I haven't tested the amperage that comes out of a arduino but I don't think it would be much. I could try and hock up a iPad charger which I think is 2amp.
---------- Post added at 11:08 AM ---------- Previous post was at 10:34 AM ----------
facelessloser said:
You have a good point there, I haven't tested the amperage that comes out of a arduino but I don't think it would be much. I could try and hock up a iPad charger which I think is 2amp.
Click to expand...
Click to collapse
I have just tested the Xbox 360 controller being powered from a iPad charging plug and now joy. It lights up but then goes off
I'm making my own otg cable tonight if the spare usb cable I found works for data and not just charging. Basically I have a female usb port on a cable that I used to splice in with an original Xbox controller plug to be able to use usb sticks as memory cards for my Xbox to be able to install gentoo Linux on my Xbox (original Xbox controllers are usb 1.0 with a proprietary plug type) so I know the female port works fine for data transfers.
Eventually I'll buy some plugs to solder onto both the usb and Xbox cables so I can yank the female plug from the otg cable and snap it right onto the Xbox plug instead of having to constantly re-splice them or buy a new usb extension cable for the female end/buy a pre made otg cable.
Sent from my Vivid 4G using xda app-developers app
---------- Post added at 12:30 AM ---------- Previous post was at 12:27 AM ----------
Oh yeah, the point to my post was that I have three usb hubs, two powered one not, and a ton of stuff to test with my kf2 like a billion usb keyboards, mice, storage devices, and the one I REALLY want to get working, my afterglow Xbox 360 controller for minecraft pocket edition
Sent from my Vivid 4G using xda app-developers app
Support any KF2 ROM Bluetooth Dongles ? (to use BT headset)
avathor said:
Support any KF2 ROM Bluetooth Dongles ? (to use BT headset)
Click to expand...
Click to collapse
IDK how thats going. I don't think anyone is working on it since the KF2 doesn't have bluetooth to begin with. When I connect my cheapo BT Dongle, it doesn't allow me to turn the switch to on. However it does see the BT Dongle and thinks its a keyboard of some sort. Which would be nice because I have a really nice BT Keyboard for Android I wanna use.
Also would be nice to use PS3 Controllers. I'm going to attempt the wireless 360 controller with the adapter one of these days, whenever I can focus some cash in that direction. I really want a wireless 360 controller on my KF2 so I can play some of the higher end games as well as the older Emulated games. Just think its too cool
I just recently got a Samsung Galaxy Note 10.1 and so far I'm quite happy with it --- except one thing, I cant find a cable that lets me charge the tablet *and* use the USB Host (OTG) port... (i.e. read files off a USB drive or play a game with a USB game pad while keeping the tablet plugged in)
Is there a way to do this? it would seem to me that all it needs is a splice to give power to the Power +/- pins on the connector while keeping the OTG Data +/- pins active...? (I know nothing about the pinout so I could be wrong on this)
Just to be clear I want to use the OTG adapter WHILE CHARGING (I've found one device that gives both these options but says "only one function may be used at a time")
Ideas?
Discussed dozen times in 10.1 forum. Actually it is not possible. Build an otg + power cable myself but it only works with timing and with a specific procedure... quite annoying. Wait for a custom rom somewhere in the future as I do.
You may have issues trying this, OTG cables are iffy under Jelly Bean. Some may work, some may not. In fact, Google removed references to OTG support for Nexus devices last November since OTG is so spotty. Splicing a cable that might work may kill it. Decent battery-powered USB and SD hubs are available and bypass the OTG problems. I have the RavPower RP WD01 and love it. The USB port will support drives upto 3T. It also has an SD card slot.
mke1973 said:
You may have issues trying this, OTG cables are iffy under Jelly Bean. Some may work, some may not. In fact, Google removed references to OTG support for Nexus devices last November since OTG is so spotty. Splicing a cable that might work may kill it. Decent battery-powered USB and SD hubs are available and bypass the OTG problems. I have the RavPower RP WD01 and love it. The USB port will support drives upto 3T. It also has an SD card slot.
Click to expand...
Click to collapse
Powering the USB devices isn't a problem, I have a nice hub that powers them without issue, even extremely power-hungry devices. I was wanting to charge the tablet's battery while using the OTG adapter (original thought was for USB-gamepad-ing since high-requirement games drain battery, but I've since started using a PS3 controller over bluetooth so I can use the OEM charge cable and wireless for gaming --- but USB drives I'd have to copy the files over to internal flash or a MicroSD card to view while charging and i've found that the cards dont like files that are 8gb in size... (FAT-32 restriction iirc))
47kt said:
Discussed dozen times in 10.1 forum. Actually it is not possible. Build an otg + power cable myself but it only works with timing and with a specific procedure... quite annoying. Wait for a custom rom somewhere in the future as I do.
Click to expand...
Click to collapse
I saw that when I google'd but thought maybe there had been some new developments (especially with how this site's members love to tinker with electronics and write custom firmware). It's not a huge issue, since the Note 10.1 has amazing battery life (it's actually matching or doing BETTER than my iPad in most circumstances) I just like to never run the battery down low.. (why cant tablets have user-replaceable/swapable batters like most phones?!)
Thanks for the info!
I've got a Note 10.1 2014 mounted in the dash of my truck to replace the radio and am on a mission to figure out how to get USB OTG to work with charging. I've read an ocean of threads regarding hacking MHL adapters, but there is not any information specific to the Note 10.1 2014.
Right now I've got a relay system in the dash that switches between a OTG cable and a charge cable depending if the ignition is on or off. This works for my basic purposes, but if I use GPS navigation and wifi tethering, I run the battery pretty low after only 3-4 hours. When I turn off the truck it begins charging, but that wont work for a road trip.
I've tried the Samsung smart dock (without reading that it wouldn't work), and of course, it doesn't work, although it would be the perfect solution.
My idea is that there would be some way to use the 11 pin MHL connector on the device to get what I'm after. Looking at the pinout, it seems that there are some USB host pins within the 6 additional MHL pins, but I do not know of anyone who has tapped into them and had OTG working.
Is anyone else trying to get this to work on a Note 10.1 2014? I'm happy to hack up and solder anything and everything imaginable to give it a try, but I'd like to collaborate about it and see if we as a group can get this working.
Im about ready to rip apart my smartdock and see exactly why it wont work with this tablet.... have no idea why it qont recognise the tablet...
morgancole said:
I've got a Note 10.1 2014 mounted in the dash of my truck to replace the radio and am on a mission to figure out how to get USB OTG to work with charging. I've read an ocean of threads regarding hacking MHL adapters, but there is not any information specific to the Note 10.1 2014.
Right now I've got a relay system in the dash that switches between a OTG cable and a charge cable depending if the ignition is on or off. This works for my basic purposes, but if I use GPS navigation and wifi tethering, I run the battery pretty low after only 3-4 hours. When I turn off the truck it begins charging, but that wont work for a road trip.
I've tried the Samsung smart dock (without reading that it wouldn't work), and of course, it doesn't work, although it would be the perfect solution.
My idea is that there would be some way to use the 11 pin MHL connector on the device to get what I'm after. Looking at the pinout, it seems that there are some USB host pins within the 6 additional MHL pins, but I do not know of anyone who has tapped into them and had OTG working.
Is anyone else trying to get this to work on a Note 10.1 2014? I'm happy to hack up and solder anything and everything imaginable to give it a try, but I'd like to collaborate about it and see if we as a group can get this working.
Click to expand...
Click to collapse
Man, you really gotta get us a screenie of this! That's bad ass.
Sent from my SM-P600 using XDA Premium 4 mobile app
Meanwhile, is there a possibility for that knock-out?
High current charging has an impact on the signal lines. So USB 2.0 current is limited to 500mA, or probably the 900mA from USB3, if the port can provide it. On a standard USB2 port the Note remains self-powered. And even with 900mA it will slowly discharge while in use, despite the battery charging at max current. On a 2A charger, the operating power bypasses the battery, which is much more healthy for it.
Thank you for your reply. Unfortunately I asked imprecise. What I liked to ask is, if there is meanwhile a possibility to charge the tablet while using the usb connection e.g. with an external hard disk?
Almost certainly not. Samsung could have provided a charger jack, or even support wireless charging. But it was not meant to be.
I just tried one of the charge and 2 female usb adapters off ebay and it didnt charge. It detected the usb connectors connection, but wouldnt charge.
$5 lost...
Did you used the wall plug? Because the tab needs 2A for charging...
sent from htc one...
Why not take away the USB requirement? I assume you want this to allow external storage, in this case get some sort of NAS that can be 12V powered and install that in your truck then allow the Note to connect to this via Wifi, then the USB port can be dedicated entirely for charging only.
Plus you have the benefit that when at home you can transfer file to your NAS without needing to leave you PC.
nas item
atunguyd said:
Why not take away the USB requirement? I assume you want this to allow external storage, in this case get some sort of NAS that can be 12V powered and install that in your truck then allow the Note to connect to this via Wifi, then the USB port can be dedicated entirely for charging only.
Plus you have the benefit that when at home you can transfer file to your NAS without needing to leave you PC.
Click to expand...
Click to collapse
Check out ravPower wireless hub. Just ordered one since my otg hub quit working. It can charge and store with sd card. Will post when it comes in
sidyoung57 said:
Check out ravPower wireless hub. Just ordered one since my otg hub quit working. It can charge and store with sd card. Will post when it comes in
Click to expand...
Click to collapse
Are you using the LTE/3G for internet access? if not then setting up a wireless network in your truck might work. I use a HooToo TM001 (also have the TM002) to do this set up. The hub has a 6000mah battery that when the USB drive is not installed can charge a device.
i know it's been a while since OP posted, but i've been using a wireless HD so i can use external storage and maintain a charge. if you get the seagate wireless plus, you'll be able to charge and stream at the same time as long as you use a usb3.0 cable to charge from (it's included). using a 2.0 cable will turn off wifi.
it's quite a bit more than OTG, but it does allow you to have tons of storage available while still having a charging option.
I use a nexus 7 in the dash of my car (sure do wish I had space for the note 10.1 in there though!) With the nexus 7 I bought a y-cable that allows me to charge AND use otg functions. However, a specific kernel was needed im pretty sure. I set it all up a while back so I cant remember specifically sorry. Its all nexus 7 forums here though.
kernel
ajgftw said:
I use a nexus 7 in the dash of my car (sure do wish I had space for the note 10.1 in there though!) With the nexus 7 I bought a y-cable that allows me to charge AND use otg functions. However, a specific kernel was needed im pretty sure. I set it all up a while back so I cant remember specifically sorry. Its all nexus 7 forums here though.
Click to expand...
Click to collapse
can you click on about tablet and let me know which kernel please
fyahman1 said:
can you click on about tablet and let me know which kernel please
Click to expand...
Click to collapse
yeah mate, i'll have a look for you. the nexus 7 is out of the car now cus im trying to make a custom facia to fit the samsung note 10.1 in there. so I'll have to charge it up and have a look which kernel it was running. but im pretty sure it was just the default one that came with the AutoDroid rom in the nexus 7 forums.
if you don't hear back from me just pm me, I'm forgetful as hell and its coming into exam time....so yeah
I have an acer aspire 7560, it does have an hdmi port, but I don't want to have to buy an adapter for something that I don't know would even work for video input. I want to know: is there some way that I can use a normal, oem supplied, usb cable for this and simply connect it to the computer, figure out some stuff on the ubuntu end, and just use my laptop as an external display?
dreamwave said:
I have an acer aspire 7560, it does have an hdmi port, but I don't want to have to buy an adapter for something that I don't know would even work for video input. I want to know: is there some way that I can use a normal, oem supplied, usb cable for this and simply connect it to the computer, figure out some stuff on the ubuntu end, and just use my laptop as an external display?
Click to expand...
Click to collapse
Short answer: no
Explanation: your HDMI port is solely for outbound connections only, to a TV or monitor. There are very few laptops that have the ability to receive an HDMI input.
As for doing it with USB there are third party apps like BBQDroid and MirrorOp that will let you, but its nearly impractical for the Nexus. Trust me, I've been trying for over a year to get even the right ROM/kernel combo to maintain a reasonable lagfree experience using them and its hopeless. We don't have the power. Sure, you can do it. But don't expect to do anything without huge performance drops.
I have a new tv that supports hdmi, but it also has usb 2.0 in, and I do not have a hdmi mhl adapter. Would a normal oem cable work for that?
dreamwave said:
I have a new tv that supports hdmi, but it also has usb 2.0 in, and I do not have a hdmi mhl adapter. Would a normal oem cable work for that?
Click to expand...
Click to collapse
Nope. USB port on your TV is for connecting media devices with music/videos/pictures and does not support the feature your looking for.
I have had success using the Mirror for CM11 application by koush with Airserver on my PC. Info to get it here. You must join the community and beta before it shows up in Play Store.
It works over WiFi network so long as your PC has AirServer, which is an Apple app supposed to be for idevices but the app picks it up anyway. The free version of Airserver is only 7 day trial. It will slow your phone down somewhat, but not anywhere near as bad as other apps. I've used it some, and it works well. But it has limited use with only a trial for Airserver. Such a bummer there, but give it a shot for the 7 days and support it and koush if you it
Good luck