Develop Bugs

OTG USB HUB Charging

So i ordered USB HUB and OTG cable and made this: http://shrani.si/f/3m/Qg/JfkMcsx/20130808144649.jpg
Everything is working fine, just the battery life is short.
So i was wondering if I can connect USB HUB with A-A USB to USB Power Adapter (http://image.made-in-china.com/2f0j00CefTLRdzJBgP/5W-USB-Power-Adapter-MEU-.jpg) and charge my Nexus 7.
Greetings.

SuperAmi said:
So i ordered USB HUB and OTG cable and made this: http://shrani.si/f/3m/Qg/JfkMcsx/20130808144649.jpg
Everything is working fine, just the battery life is short.
So i was wondering if I can connect USB HUB with A-A USB to USB Power Adapter (http://image.made-in-china.com/2f0j00CefTLRdzJBgP/5W-USB-Power-Adapter-MEU-.jpg) and charge my Nexus 7.
Greetings.
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Click to collapse
You won't be able to charge the nexus that way - you'd need a custom kernel for that (there's one for original nexus 7).
I'm planning on doing something similar, I'm wonder if a powered USB hub would at least power your USB accessories (I'm going to plug in a DAC and Hard drive).

miketunes said:
You won't be able to charge the nexus that way - you'd need a custom kernel for that (there's one for original nexus 7).
I'm planning on doing something similar, I'm wonder if a powered USB hub would at least power your USB accessories (I'm going to plug in a DAC and Hard drive).
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Click to collapse
you think it will come?

SuperAmi said:
you think it will come?
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Not for a few months at the very earliest would be my guess.

They make a otg cable that has a power port on it to power the flash drive so it don't drain your battery. I know amazon has them.
Sent from my Nexus 7 using Tapatalk 2

For those interested in making this possible, like it is with the OG nexus 7, Here it is:http://www.indiegogo.com/projects/usb-rom-nexus-7-2013
??
And thread:
http://rootzwiki.com/topic/37755-timurs-kernel-usb-rom-closed-21-aug-2013/
Sent from my Nexus 7 2013 using Tapatalk 4

OTG cable male/female

Hi, anyone buyed an otg cable with male/female micro usb-usb 2.0 to connect external flash drive and keep charging the phone at same time?
I have bought that but only works the usb 2.0, i cant charge the phone. Sorry but i cant post the link of the product, here is a picture of them.
Sry for my english.

Make sure you have a 'charge only' lead to the charger (Shows as 'AC connected' not 'USB Connected') or you'll find you won't have enough power to do everything.

techguyone said:
Make sure you have a 'charge only' lead to the charger (Shows as 'AC connected' not 'USB Connected') or you'll find you won't have enough power to do everything.
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Yes, i tried but i cant charge. I tried with other phone and works but dont have otg support.

The problem with OTG and simultanous charging is that you'll probably need a custom kernel supporting this.
Because if you use OTG (or a data cable respectively), the phone will only charge with 500 mA max. - this might not be enough to charge your phone while using power-consuming apps (navigation, games,...). If you want the phone to charge faster/draw more current, you'll need to short-circuit the data leads - but then you can't use OTG/data. Tricky...

dwarf77 said:
The problem with OTG and simultanous charging is that you'll probably need a custom kernel supporting this.
Because if you use OTG (or a data cable respectively), the phone will only charge with 500 mA max. - this might not be enough to charge your phone while using power-consuming apps (navigation, games,...). If you want the phone to charge faster/draw more current, you'll need to short-circuit the data leads - but then you can't use OTG/data. Tricky...
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I think that is not the reason because if i try to charge only didn't work, i think the charging cable is not compatible with moto g like some chargers specific for some patents.
If someone knows a cable like that to charge and use usb stick or something compatible with moto g I would appreciate.

The cable is probably working, but the kernel is not supporting it. If you use a USB y-cable, it will power a plugged-in USB stick / device, but not your Moto G. You will need a kernel or tomorrow supporting simultaneous data & charging. Have a look in the Nexus 7 sections, there you'll find more information about this.

dwarf77 said:
The cable is probably working, but the kernel is not supporting it. If you use a USB y-cable, it will power a plugged-in USB stick / device, but not your Moto G. You will need a kernel or tomorrow supporting simultaneous data & charging. Have a look in the Nexus 7 sections, there you'll find more information about this.
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Yes, just as I responded you I made a ​​search on the subject and e found a kernel for it but still no one has made for moto motorola g ....
I hope someone does it soon!!!

javiko_bcn said:
Hi, anyone buyed an otg cable with male/female micro usb-usb 2.0 to connect external flash drive and keep charging the phone at same time?
I have bought that but only works the usb 2.0, i cant charge the phone. Sorry but i cant post the link of the product, here is a picture of them.
Sry for my english.
Click to expand...
Click to collapse
wow i never knew a cable like this existed. i have the normal usb otg cable.

javiko_bcn said:
Hi, anyone buyed an otg cable with male/female micro usb-usb 2.0 to connect external flash drive and keep charging the phone at same time?
I have bought that but only works the usb 2.0, i cant charge the phone. Sorry but i cant post the link of the product, here is a picture of them.
Sry for my english.
Click to expand...
Click to collapse
This is interesting but did you check this out:
The jack of all trades
https://www.youtube.com/watch?v=cZ0ScWa9idk&feature=youtube_gdata_player
Its :
1. Wireless SD Card reader
2. 3000mAh Portable USB charger
3. USB flash disk reader
4. USB external HDD
5. SDD
6. NAS File reader
7. WiFi hotspot
Sent from my XT1033 using xda app-developers app

Help with Otg

Hello i installed a nexus 7 in my car not i really dont want to take out my center console because its a huge Pita. But i realise that i now need an otg. I was runninh sound via bluetooth to my radio but the lag os crazy. I have acces to the the end of my charging cable. I was wondering would adding a usb to usb adapter and a usb hub. Would that be consider a usb otg cable. Would i be able to purchase a usb dac and use it. Also could i charge at the same time. I have absolutely no room to fit a audio jack on my tablet. So usb dac is my only option.

egren58 said:
Hello i installed a nexus 7 in my car not i really dont want to take out my center console because its a huge Pita. But i realise that i now need an otg. I was runninh sound via bluetooth to my radio but the lag os crazy. I have acces to the the end of my charging cable. I was wondering would adding a usb to usb adapter and a usb hub. Would that be consider a usb otg cable. Would i be able to purchase a usb dac and use it. Also could i charge at the same time. I have absolutely no room to fit a audio jack on my tablet. So usb dac is my only option.
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Click to collapse
You generally need a kernel installing to do as you have said eg elemental x or timurs. Yes, you can then use a usb otg cable to power and host the usb dac.

Powered Otg Cable

I got a cable: http://www.ebay.com.au/itm/301291074104?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT
It does either charge ("AC charger", not USB) or OTG (tried many USB sticks) but never both. Is that a limitation of Cyanogenmod 12.1 which my phone is running now? I have seen people mentioning that I might want a custom kernel, is that correct? Or the cable is just wrong?

aikhome said:
I got a cable: http://www.ebay.com.au/itm/301291074104?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT
It does either charge ("AC charger", not USB) or OTG (tried many USB sticks) but never both. Is that a limitation of Cyanogenmod 12.1 which my phone is running now? I have seen people mentioning that I might want a custom kernel, is that correct? Or the cable is just wrong?
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The description on ebay says "The USB Typa-A Male plug is used to provide external power for connected devices (instead of mobile phone or Tablet)", so it's not really a Y-cable, just acts as a usb powered hub. Anyways if it was a y-cable, you would still need a custom kernel that has the ability to OTG+charge at the same time.

germanargentina said:
The description on ebay says "The USB Typa-A Male plug is used to provide external power for connected devices (instead of mobile phone or Tablet)", so it's not really a Y-cable, just acts as a usb powered hub. Anyways if it was a y-cable, you would still need a custom kernel that has the ability to OTG+charge at the same time.
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Ah, right. Thanks for reading the description for me Thanks! However sometime it does charge the phone.
Any idea if CM12.1 has such a custom kernel?

Trying to connect USB Wifi Adaptor

Hi all, I have the Nexus 5 and wish to connect the TP-LINK TL-WN722N USB Wifi Adaptor but I am having no success, I purchased a Y Cable to connect it to my phone but when i plug it in nothing happens on screen or no light comes on the Wifi Adaptor, I plugged my charging cable into the other end of the Y Cable but it doesn't charge the phone, I thought my cable must be faulty but i've now used 3 more and all with the same outcome. Is there something i need to do to my phone to get this to work? The port on the phone works fine as it connects to my computer and charges perfectly when i just use a normal cable. If you can help me it would be greatly appreciated.

iRyanBall said:
Hi all, I have the Nexus 5 and wish to connect the TP-LINK TL-WN722N USB Wifi Adaptor but I am having no success, I purchased a Y Cable to connect it to my phone but when i plug it in nothing happens on screen or no light comes on the Wifi Adaptor, I plugged my charging cable into the other end of the Y Cable but it doesn't charge the phone, I thought my cable must be faulty but i've now used 3 more and all with the same outcome. Is there something i need to do to my phone to get this to work? The port on the phone works fine as it connects to my computer and charges perfectly when i just use a normal cable. If you can help me it would be greatly appreciated.
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from doin this on my nexus 7 to use nethunter kali with the wifi adaptor i would say you need a rom and kernel that support usb-charge and host. stock android doesnt support wifi adaptors . u can access and use the adaptor in a linux kali but you cant use it in stock android to say browse the web instead of using on-board wifi chip/card.
edit : Also most of the y-cables you can buy from e-bay dont actually route power to the phone/tablet and to the attached device, the power only goes to phone, i had to make my own charge/host usb cable with a soldering iron and heatshrink tubing. this cable charges the phone/tablet and provides steady power to the attached devices (wifi adaptor, mouse,keyboard,hard-drive) the ones i mention previously from e-bay dont provide enough juice to power the adaptor.

You need a custom kernel with module loading, root and your wifi adaptor´s module, altough my WN723N and a cheap old ethernet adaptor worked out of the box(chroma rom with elementalx kernel)

opssemnik said:
You need a custom kernel with module loading, root and your wifi adaptor´s module, altough my WN723N and a cheap old ethernet adaptor worked out of the box(chroma rom with elementalx kernel)
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Many thanks for your reply, I will try these now and see how i get on