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As the title says, I want to charge my Nexus 9 while using a keyboard/mouse and other peripherals that I would have connected to the Nexus 9 through a USB hub. I know it is not always possible to charge through the hub, so I was thinking about something like a 'micro USB splitter" that expands the micro-USB port into 2 micro-USB ports: one for the charger that comes with the Nexus 9, and the second port for a OTG cable/usb hub/etc. Anyone have any thoughts on this?
I did read this post here for the Nexus 7 but not sure if the same is true for the Nexus 9.or if any additional options existed for the 9. Ultimately, I guess I'm wondering if it is unrealistic to expect to find something that charges the device at the same time as using a hub/OTG cable without too much modding or hassle? My device is rooted and I've flashed some mods and tweaked some things on previous devices I've had, but am by no means an expert so I would hope to keep the hacking/modding for something like this to a minimum, if possible. Plus, there's an outside chance I may return the Nexus 9 in the next week so I wouldn't want to get too crazy until I knew for sure I'd be keeping it.
I understand that a specific kernel with certain capabilities may be needed, but I'm unsure how to find out which kernel would work and if it would be compatible with stock ROM or CM12 (when it comes out). Any help would be greatly appreciated. Even if it's a pipe dream, I'd at least know not to continue to waste my time looking for a solution that doesn't exist
I tried this one a few days ago but it did not work: https://sites.google.com/site/sonicboomworld/my-projects/otg-and-charging
Maybe it's possible with the right resistor value.
Edit:
Mod for Nexus 7 - needs kernel support:
https://mehrvarz.github.io/usb-host-mode-power-management-nexus7/
Thanks for the reply - is this kernel still being supported by the dev and is it confirmed working on Nexus 9?
I don't know as i do not own a Nexus 7.
But even if he still supports this kernel it would not help much for the Nexus 9:
A kernel is very hardware specific and the OTG changing issues is even more hardware specific.
There is absolutely no chance that you can simply use the N7 kernel on the N9.
One of the amazing kernel developers (who owns a N9) here at XDA would have to look at it.
Generally I think for "OTG + charging" to work the USB chipset on the device has to support it and/or you have to find out how you could trick the device into enabling this mode (with a certain resistor on the USB connector and/or with a kernel modification).
The bad thing is that no device seems to support the official "USB Accessory Charger Adapter" specification. (see section "OTG micro plugs" here: https://en.wikipedia.org/wiki/USB_On-The-Go for details)
Just to give you more information, there was a nexus 7 kernel by flar2 called ElementalX which had OTG + charging support. He is working on ElementalX for Nexus 9 as well, and he said he may or may not add support for it. If you and maybe others are interested, I'm sure that it will get added upon request.
MWFD said:
As the title says, I want to charge my Nexus 9 while using a keyboard/mouse and other peripherals that I would have connected to the Nexus 9 through a USB hub. I know it is not always possible to charge through the hub, so I was thinking about something like a 'micro USB splitter" that expands the micro-USB port into 2 micro-USB ports: one for the charger that comes with the Nexus 9, and the second port for a OTG cable/usb hub/etc. Anyone have any thoughts on this?
I did read this post here for the Nexus 7 but not sure if the same is true for the Nexus 9.or if any additional options existed for the 9. Ultimately, I guess I'm wondering if it is unrealistic to expect to find something that charges the device at the same time as using a hub/OTG cable without too much modding or hassle? My device is rooted and I've flashed some mods and tweaked some things on previous devices I've had, but am by no means an expert so I would hope to keep the hacking/modding for something like this to a minimum, if possible. Plus, there's an outside chance I may return the Nexus 9 in the next week so I wouldn't want to get too crazy until I knew for sure I'd be keeping it.
I understand that a specific kernel with certain capabilities may be needed, but I'm unsure how to find out which kernel would work and if it would be compatible with stock ROM or CM12 (when it comes out). Any help would be greatly appreciated. Even if it's a pipe dream, I'd at least know not to continue to waste my time looking for a solution that doesn't exist
Click to expand...
Click to collapse
The company I work for is developing a OTG cable that does exactly that: lets you charge your phone/tablet while using a USB peripheral.
We are testing it in the UK market currently, but not selling in the US at the moment. You can check it out here: http://www.amazon.co.uk/Sansys-Char...F8&qid=1417298449&sr=8-1&keywords=usb+otg+mlc
We were thinking about doing a kickstarter or indiegogo for it, but not sure the amount of interest in a niche device like this.
Can you confirm that it is working on the Nexus 9? (and/or the Nexus 5)?
If it is, I'll order one immediately. I've been looking for such a thing since I had my Galaxy S2.
lfrst05 said:
Can you confirm that it is working on the Nexus 9? (and/or the Nexus 5)?
If it is, I'll order one immediately. I've been looking for such a thing since I had my Galaxy S2.
Click to expand...
Click to collapse
I can't confirm that it will work on the Nexus 9, but my partner from China is sending me a sample so I can try it out. I have a Nexus 9 and 5 also, and they'll be the first devices I will test it on.
We've also sent a couple out to some Youtube reviewers as well, so there may be a video review on them soon.
We just put up an Amazon US listing for this cable if any of you in the states want to try it out: http://www.amazon.com/dp/B00OLKFR44/
I should have one in hand in the middle of the week to test out.
mkygod said:
We just put up an Amazon US listing for this cable if any of you in the states want to try it out: http://www.amazon.com/dp/B00OLKFR44/
I should have one in hand in the middle of the week to test out.
Click to expand...
Click to collapse
I'm really excited to get my hands on one of these! let me know if it works.
mkygod said:
I can't confirm that it will work on the Nexus 9, but my partner from China is sending me a sample so I can try it out. I have a Nexus 9 and 5 also, and they'll be the first devices I will test it on.
We've also sent a couple out to some Youtube reviewers as well, so there may be a video review on them soon.
Click to expand...
Click to collapse
Sweet, this sounds awesome, let us know if it works :fingers-crossed:
mkygod said:
We just put up an Amazon US listing for this cable if any of you in the states want to try it out: http://www.amazon.com/dp/B00OLKFR44/
I should have one in hand in the middle of the week to test out.
Click to expand...
Click to collapse
This arrived from Amazon today. Unfortunately I can't get it to work. When the micro usb is plugged into the N9 it lights up blue. At that point I'm able to mount a thumb drive, use a mouse and Playstation controller. But once the other end is plugged into a charger the light goes off and whatever is connected stops working. The N9 begins to charge at that point. If plugged into my PC, same thing.
Note: the blue light goes off when other end is plugged in regardless of if anything else is in use.
BTW, running elementalX kernel and Lollipopalooza rom.
TSman74 said:
This arrived from Amazon today. Unfortunately I can't get it to work. When the micro usb is plugged into the N9 it lights up blue. At that point I'm able to mount a thumb drive, use a mouse and Playstation controller. But once the other end is plugged into a charger the light goes off and whatever is connected stops working. The N9 begins to charge at that point. If plugged into my PC, same thing.
Note: the blue light goes off when other end is plugged in regardless of if anything else is in use.
BTW, running elementalX kernel and Lollipopalooza rom.
Click to expand...
Click to collapse
I've heard some people say in certain other situations with OTG + charge, you need to plug everything in first, then plug the OTG cable into the device. Try that and see if it works?
saadi03 said:
I've heard some people say in certain other situations with OTG + charge, you need to plug everything in first, then plug the OTG cable into the device. Try that and see if it works?
Click to expand...
Click to collapse
Gave it a shot with this method but still a no go. Tried it on my phone as well with no luck.
TSman74 said:
Gave it a shot with this method but still a no go. Tried it on my phone as well with no luck.
Click to expand...
Click to collapse
Thats a bummer, thanks for the info.
Would we happen to need a kernel that supports simultaneous charging and data transfer? I bought a usb y cable and that only allows me to use one or the other. Which sucks .
Some devices have been known to work with only modified OTG cables such as galaxy tablets and experia phones.
What would this modification be?
I finally got a chance to test out these cables. I thought my first cable was busted so I ordered a 2nd one.
I'm VERY sorry to report that this cable does NOT support USB OTG AND CHARGING AT THE SAME TIME. It is not just your device.
Apparently, there was some miscommunication between me and by business associate in China that lead me to believe that this cable would function this way but it only functions as a USB OTG OR CHARGER CABLE. Language barrier didn't help since I do not speak Chinese and he does not speak English very well. If you read the description, the functionality of this cable is not very clear and obviously written by someone with English as a second language. And also, I can see how the photos can be misleading as well. He went and listed this product on our Amazon account to sell before he even sent me a sample for me to test out and I'm kinda mad at him for doing that.
I was pretty excited at the prospect of it doing OTG and charging at the same time, but now im dismayed that this cable cannot do it. This whole thing was a waste of time to try to bring a product like this to the US that bares little benefit other than being a 2 in 1 cable that can replace a regular USB OTG cable and a Charging cable (albeit a very short charging cable). Sorry that I got your hopes up guys
I do want to clarify exactly what this cable does though: Basically all it does is switch from Charging mode to USB OTG mode depending on how you have it plugged in. If you plug the cable into the mobile device only, the blue light will turn on, letting you know that you can use the USB OTG port. However, once you plug the other end of the cable into a charger, the blue light will turn off, and the cable goes into charging mode. The USB OTG port will not work or light up again until you remove the cable from your charger.
hey there everyone, i'm trying to understand this a bit more. i have the same cable, but my understanding is that it wont work unless the kernel supports it. does anyone know if this is possible to actually fix in the Nexus 9 kernel? i really need this for a project
Ok I am going to be installing this tablet into my truck to replace the factory radio. My current dilemma is that I cant figure out a way to get otg host and charging working at the same time. I have tried some of the cables on ebay that are supposed to make this possible. Either one works or the other. So I was thinking maybe I could hardwire the tablet directly to my vehicle. Either wiring directly to the circuitry inside the tablet or possibly wiring in another microusb or usb port onto the tablet. I know some tablets come with an ac port already on the tablet along with the microusb port. I usually see this setup on larger tablets or some of the off market ones. I was wondering if anyone could help me thru this if it is even possible. I have also seem someone was able to make a custom kernel to enable a tablet to be charged and otg host at the same time on a different tablet. I can provide pictures of the inside on the tablet if this would help out any.
I want to take advantage of the S5 MHL capability. Perhaps eventually using the phone as my everyday computer.
So I would need to have usb keyboard and mouse while connected to a monitor.
I have ordered the device pictured below, it reportedly supports the S5 in some kind of half-assed way, meaning that you may have to fiddle with inserting cables in a certain order to get it to work.
This is what I read anyway.
I want to know if any of you have used the Galaxy S5 in such a way. Will my device work? Know of a better solution?
I had some dreams of making my own Diy S5 dock, but I would have to know what kind of electronic/hardware configuration works (if any), as the S5 is different in that it does not support dock mode (Why samsung... why?).
Well I can report that it works. HDMI out works with sound, and it charges while doing so, but the USB port and the card reader does not work apparently.
Obviously the form of the device is a poor match for the Galaxy S5. I had to remove the plastic housing to make it fit, because of the watertight hatch in front of the USB port. Later I will use a USB extender cable.
Hopefully there is a possibility to make OTG (or host mode, or whatever it's called) work.
It appears this device supports the S5
http://andromiumos.freeforums.net/thread/4/officially-supported-android-phones?page=1&scrollTo=4
http://www.andromiumos.com/
There is two question marks here.
1) Does S5 support simultaneously operation with OTG active and HDMI output active.
2) Does this gadget also support such a functionality?
I don't know. I've read people claiming that you can use both hdmi & otg at the same time including post's on xda. But i've also read people saying you can't. I certainly havn't seen any video demonstrations.
By the way i currently have my S5 displayed on my monitor using mhl->hdmi adapter and have my pc mouse and keyboard working on the S5 wirelessly with Samsung SideSync. I opened the xda app with the pc mouse and have typed this reply with the pc keyboard. I've done some navigation on the phone, opened and used a range of apps. All is well till i opened firefox and the mouse disappeared from the monitor. It's still displayed and functional on the S5 screen though. Closed firefox and the mouse is displayed on the monitor again.
Sent from my SM-G900I using XDA-Developers mobile app
mbdroidsony said:
All is well till i opened Firefox and the mouse disappeared from the monitor.
Click to expand...
Click to collapse
Therefore your new question this is : Does Firefox (Android) this supports four input devices connected at the same time?
Android Keyboard = 1
External keyboard = 2
Android touch pad = 3
external mouse = 4
And all that active by also active HDMI
I would be surprised if Android OS has such potentials.
I was using Andromium OS app which gives you option to turn off android keyboard and dim S5 screen. Both those functions worked. Andromium OS has 3 menus from start menu. Andromium Apps(browser, file manager), Supported Apps (gmail, youtube), Unsupported apps (all other apps installed on device). PC mouse and keyboard worked fine with Andromium Apps & Supported App. PC mouse and keyboard also worked fine with most unsupported apps i tested except firefox browser and adblock browser. If i get my hands on a bluetooth mouse/keyboard i'll test again to see if it works with firefox browser and adblock browser from monitor.
Personally I am going to use my HP iPAQ FA287 Bluetooth keyboard at S5 ( or at least I will try).
Also ordered one OTG cable (CY U2-166) that hopefully this will offer power to the phone and External HDD, due micro USB (female input for charger cable) and this will become also my mouse input too.
Therefore I am interested for your inquiry / investigation, possibly as much you do, because I do also favor Firefox.
I favour android firefox browser and adblock browser because they are consistent in providing desktop view. I'll provide an update here when i get my hands on a bluetooth mouse & keyboard.
Kiriakos-GR said:
Personally I am going to use my HP iPAQ FA287 Bluetooth keyboard at S5 ( or at least I will try).
Also ordered one OTG cable (CY U2-166) that hopefully this will offer power to the phone and External HDD, due micro USB (female input for charger cable) and this will become also my mouse input too.
Therefore I am interested for your inquiry / investigation, possibly as much you do, because I do also favor Firefox.
Click to expand...
Click to collapse
Hi, did this cable charge your S5 while using OTG/USB Host?
Sent from my SM-G900I using XDA-Developers mobile app
mbdroidsony said:
Hi, did this cable charge your S5 while using OTG/USB Host?
Click to expand...
Click to collapse
My cable did not arrive yet from China.
But even so, in the past days I did some research about finding more details by discovering the factory that makes those cables.
According to real Specifications: (after me correcting errors due bad translation)
High quality Original USB 2.0 Micro-B HOST OTG CABLE
Interface:
Micro USB male: = Output To be connected with OTG complying device ( Your phone or tablet).
Micro USB female: = DC input To charge = Supply of Power due micro USB female connector ( This is only to supply DC voltage to USB A plug this powering hard drives etc etc).
USB female: To connect with USB A device.
Therefore or in conclusion, this cable is not in position to supply power for the phone and the external hard drive.
Later on, that I did the electrical math, I can now explain and the why ? (this cable cannot do both).
By assuming that mobile phone or tablet this requiring 450mA at charging (due PC USB plug), and removable hard-drives (some of them requiring another stable supply of 500mA) the sum this is almost 1A of power.
Manufacturing of OTG cables this requiring from the manufacturer, him to make a product according to OTG cable international standards (compatibility - safety - functionality).
Only if Samsung makes a OTG cable specifically for S5, this will be able for active Host and charging.
All cables available at the moment, them have generic compatibility and non of them will work as we expect or wish.
Kiriakos-GR said:
My cable did not arrive yet from China.
But even so, in the past days I did some research about finding more details by discovering the factory that makes those cables.
According to real Specifications: (after me correcting errors due bad translation)
High quality Original USB 2.0 Micro-B HOST OTG CABLE
Interface:
Micro USB male: = Output To be connected with OTG complying device ( Your phone or tablet).
Micro USB female: = DC input To charge = Supply of Power due micro USB female connector ( This is only to supply DC voltage to USB A plug this powering hard drives etc etc).
USB female: To connect with USB A device.
Therefore or in conclusion, this cable is not in position to supply power for the phone and the external hard drive.
Later on, that I did the electrical math, I can now explain and the why ? (this cable cannot do both).
By assuming that mobile phone or tablet this requiring 450mA at charging (due PC USB plug), and removable hard-drives (some of them requiring another stable supply of 500mA) the sum this is almost 1A of power.
Manufacturing of OTG cables this requiring from the manufacturer, him to make a product according to OTG cable international standards (compatibility - safety - functionality).
Only if Samsung makes a OTG cable specifically for S5, this will be able for active Host and charging.
All cables available at the moment, them have generic compatibility and non of them will work as we expect or wish.
Click to expand...
Click to collapse
Samsung hasn't made it easy for us S5 users. Might have to resort to wireless charging at this rate.
Samsung Galaxy S5 Qi Wireless Charging Kit EP-WG900IBEGWW
Just going to throw this out there...
Why not use a bluetooth mouse/keyboard (or even one of those combined ones) with the phone mirroring it's screen to a ChromeCast plugged into your monitor? There's minimal (and I mean you're looking at 10ms) lag - or that's my experience, but I have a really really really fast router etc - and if you're planning on using it essentially as a PC, this setup will work wonders. Plus you can plug the phone in. I've considered using my old S3 in this way.
yetep said:
Just going to throw this out there...
Why not use a bluetooth mouse/keyboard (or even one of those combined ones) with the phone mirroring it's screen to a ChromeCast plugged into your monitor? There's minimal (and I mean you're looking at 10ms) lag - or that's my experience, but I have a really really really fast router etc - and if you're planning on using it essentially as a PC, this setup will work wonders. Plus you can plug the phone in. I've considered using my old S3 in this way.
Click to expand...
Click to collapse
Charging the S5 through 2A cable would be faster than wireless charging. MHL to HDMI adapter charges the phone as well as mirror your phones screen. I've never used bluetooth mouse and keyboard. Would the S5 support pairing and using both mouse and keyboard at the same time?
By the way there are products for the S3,S4 that support mhl, otg & charging at the same time like the UNITEK Y-2165.
http://www.amazon.com/UNITEK-Multim...5&creative=165953&creativeASIN=B00OFKY4XA#Ask
mbdroidsony said:
By the way there are products for the S3,S4 that support mhl, otg & charging at the same time like the UNITEK Y-2165.
http://www.amazon.com/UNITEK-Multim...5&creative=165953&creativeASIN=B00OFKY4XA#Ask
Click to expand...
Click to collapse
Speaking of compatibility, S5 this is a brother model to Note III.
I do such an assumption due the identical charging system specifications.
From the other hand with all those variants of G900, there is no chance to offer an 100% reliable prediction if you do not test any such OTG product with your own phone.
The link above this is about a Currently unavailable product.
Even so it is interesting that this worked for someone with Note III.
mbdroidsony said:
Charging the S5 through 2A cable would be faster than wireless charging. MHL to HDMI adapter charges the phone as well as mirror your phones screen. I've never used bluetooth mouse and keyboard. Would the S5 support pairing and using both mouse and keyboard at the same time?
By the way there are products for the S3,S4 that support mhl, otg & charging at the same time like the UNITEK Y-2165.
http://www.amazon.com/UNITEK-Multim...5&creative=165953&creativeASIN=B00OFKY4XA#Ask
Click to expand...
Click to collapse
The S5 (or certainly my model, G900T) DOES support everything I mentioned however my bluetooth mouse/keyboard is a 2 in 1 setup with the mouse being a trackpad below the keyboard, similar to a laptop. It mirrors directly to my monitor and I've forced Landscape orientation throughout the OS so it works wonderfully. I've not tried yet with the S3, but I'd assume it'd work the same way. Just need to force the screen to stay always on, pop the screen brightness right down and hide it away in a cupboard and boom, full android computer.
On the original question, a cable must exist but unfortuantely I don't know where.
yetep said:
Just need to force the screen to stay always on, pop the screen brightness right down and hide it away in a cupboard and boom, full android computer.
Click to expand...
Click to collapse
Definable this is a bad idea the screen to stay always on.
Does phone screen brightness this have any effect at HDMI output (brightness) ?
Nope, but turning it off does. I don't mind it burning out as it's an old device I don't use.
yetep said:
Nope, but turning it off does. I don't mind it burning out as it's an old device I don't use.
Click to expand...
Click to collapse
I bet 20 Euros that every one reading this topic he/her, will wonder of why you/he, does not simply turn the brightness down.
Either way, Android it is crippled operating system with out offering much of productivity as it does one regular Windows PC.
Neither a smartphone this is capable for long term gaming, the poor thing does not even have active cooling, and CPU will start slowdown so to protect it self from overheat.
My 0,2 cents, you are in a wrong path.
Kiriakos-GR said:
Speaking of compatibility, S5 this is a brother model to Note III.
I do such an assumption due the identical charging system specifications.
From the other hand with all those variants of G900, there is no chance to offer an 100% reliable prediction if you do not test any such OTG product with your own phone.
The link above this is about a Currently unavailable product.
Even so it is interesting that this worked for someone with Note III.
Click to expand...
Click to collapse
The link i gave has a few reviews that can give you an idea of what phones are compatible and which ones arn't. Youtube has video demos of the UNITEK Y-2165, unfortunately none for the S5. It appears the desktop dock feature is on the Note III where as samsung removed the dock feature from the S5.
---------- Post added at 12:48 AM ---------- Previous post was at 12:24 AM ----------
yetep said:
The S5 (or certainly my model, G900T) DOES support everything I mentioned however my bluetooth mouse/keyboard is a 2 in 1 setup with the mouse being a trackpad below the keyboard, similar to a laptop. It mirrors directly to my monitor and I've forced Landscape orientation throughout the OS so it works wonderfully. I've not tried yet with the S3, but I'd assume it'd work the same way. Just need to force the screen to stay always on, pop the screen brightness right down and hide it away in a cupboard and boom, full android computer.
On the original question, a cable must exist but unfortuantely I don't know where.
Click to expand...
Click to collapse
oh ok, so only 1 device paired.
There's a great app for having screen brightness right down called Screen Standby.
https://play.google.com/store/apps/details?id=com.nkahoang.screenstandby&hl=en
The adronium os app forces landscape.
https://play.google.com/store/apps/details?id=com.andromium.os&hl=en
I tell you what, i really like the concept of carring you desktop in your pocket. Can you imagine that, doing your desktop stuff, unplug the phone and head out with everything you did at home on the desktop in your pocket. I know microsoft have a desktop adapter for their Lumia 950 XL phones which changes the layout to desktop mode on the monitor/tv to give you that PC-like experience.
Microsoft Display Dock
https://www.microsoft.com/en/mobile/accessory/hd-500/
It's a real shame samsung removed dock support from the S5.
I am looking for an adapter similar to this one that can provide sufficient power to charge my N8000 whilst it is connected to a fingerprint scanner via powered USB hub (that powers the scanner).
I am trying to make one myself following this thread, however it is for the Galaxy Tab 7.7 and I would prefer a more elegant solution if possible. I also doubt it is going to work with my electronics skills, as I can't find a breakout board like the one used in the thread!
Any ideas/help is appreciated!
I picked up a Lenovo Tab M8 from walmart (Part number: ZA5C0045US). It comes with a small dock that charges the table via a two pin connector.
I was trying to set this up with an OTG cable so that I can attach a high end sound card. I notice that once I plug the OTG cable, the tablet stops charging via the dock. It's like OTG and charging is not allowed at the same time.
I also tried making my own OTG + charging cable (with a 10K resistor between the ID pin and ground), but it seems that the OTG function will not work unless the ID pin is grounded. I know that other devices allow for OTG + charging when the ID pin has a resistor to ground with a certain value.
Is there a way of finding out if lenovo tablets allow this? If so, where can I go an find out what type of resistor value this tablet will detect as allowing the function of OTG + charging?
Also, this tablet is rooted. Is there a software based solution like my old Nexus 7 (2013) where you could enable OTG + charging?
I've been at this for a couple of days now, so any help is greatly appreciated.
Hi,
Have you had any progress on this? I would like the same function.
Doing some reading though. I think a 10k resistor is too low, normally seen 64k or 100k
Hi, I just signed up to leave a reply here. I also was looking for a replacement for my slightly outdated Nexus 2013 in my car and stumbled upon this thread. So got a used M8 (TB 8505F ZA5G0038SE) and gave it a try.
With a 10k (measured 9.8k) resistor between ID pin and ground, OTG and charge works perfectly, without changing anything in software. With a 2A charger, battery charging is pretty slow, but the battery doesn't drain while using navigation and music (contrary to the Nexus )
So, for me it is a quite good solution.
Thank you for the info guys
I also have a TB 8505F and needed this function in my car.
For me the 10K resistor works, now it both charges and I can use my accessory (OBD2 reader)
Before this I tried a 100K resistor and that did not work so I had started to give up.
Just an update, maybe someone needs the info: I tried to make a second Y-OTG-cable with the same components, and it didn't work. Charging went on and off, no otg function. I decided to play again with the resistor values and it worked again with 12.9k. Maybe there is a certain range, which the second cable was slightly out of.
Hi All, i just bought the same tablet for similar purpose and i was wondering if when the cable is built using the 10k-12.9k resistor, i can still use the docking station that it comes with>? has anyone tried it out like this?