Develop Bugs

[Q] Micro USB to USB Converter, mouse and keyboard simultaneously

Is it possible using this kind of converter to connect simultaneously a mouse and a keyboard together to the phone ? (for example using a wireless set mouse/keyboard or a usb splitter).
Can the phone provide the power to work on both devices ?
Maybe if it was possible to charge the phone somehow using the same cable ?
http://forum.xda-developers.com/showthread.php?t=1098778
I want to connect the phone to a tv using hdmi cable (adaptor) and control the phone from distance using a wireless keyboard/mouse.
thanks

I would be interested in this too. I saw EVO 4G used as a desktop computer - http://forum.xda-developers.com/showthread.php?t=1038840 but he used bluetooth mouse and keyboard and the only thing connected to its micro usb port was hdmi cable. I would rather use some kind of usb hub in order to connect these 3 devices to the micro usb port in the phone and even charge it all at once. If anyone knows if it is possible please share your knowledge

BT
Yes, you are right about Bluetooth. I believe it's the best solution (but more expensive) because when connecting the hdmi adaptor no other ports remain for other usb devices. Also hmdi adaptor charges the phone (for example BizLink MHL to HDMI TV-Out Adapter)
thanks

You might be able to run both USB mouse & keyboard; try using a keyboard that has a USB port or two on it, then plug the mouse into the keyboard's USB. Power may be a problem; the SGS2's USB connector isn't going to provide anywhere near the 500 mA in the USB 2.0 spec.
Of course, if you're using the USB, you can't use the MHL/HDMI, and vice versa -- the connector modes are mutually exclusive. If you have to have HDMI output, you should be able to use a BT keyboard and/or mouse.

[Q] If I use a usb hub, can I attach an ethernet port, and have the device charging?

Title says it all, has anyone tried this?

From what I've read (and the other threads on this topic) - no it can't be done.

It can't be done my friend

I got it to work
psycho1200 said:
It can't be done my friend
Click to expand...
Click to collapse
I used the following and plugged into my TV usb port and had ethernet (verfied with WIFI shut off) and it was charging.
USB 2.0 Ethernet adapter - <amazon.com/gp/product/B003VSTDFG>
OTG with power - <amazon.com/gp/product/B00C452XFO/>

Yup, this now works great for me too! :good:
I bought the Ethernet adapter Nvidia Recommends (same as browncoatdave's)
http://www.amazon.com/Plugable-Gigabit-Ethernet-Chromebook-Specific/dp/B003VSTDFG
And just whatever Y cable could find that didn't look uber cheap.
http://smile.amazon.com/gp/product/B00CXAC1ZW/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

What I have plugged into the shield
jjprichards said:
Title says it all, has anyone tried this?
Click to expand...
Click to collapse
1) 3 Port USB Hub
2) Plugable USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter
3) Micro USB Host OTG Cable with Micro USB Power
4) Smart Touch Mini USB TouchPad Keyboard
5) Full Size trackball mouse
6) Charging cord
I am charging the battery with ethernet, keyboard and mouse plugged in.
No Problem. But this is also after the kitkat update which added the charging while ethernet is plugged in.

solidsn said:
1) 3 Port USB Hub
2) Plugable USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter
3) Micro USB Host OTG Cable with Micro USB Power
4) Smart Touch Mini USB TouchPad Keyboard
5) Full Size trackball mouse
6) Charging cord
I am charging the battery with ethernet, keyboard and mouse plugged in.
No Problem. But this is also after the kitkat update which added the charging while ethernet is plugged in.
Click to expand...
Click to collapse
trackball mouse, why? gives me flashbacks of the 90s...

solidsn said:
1) 3 Port USB Hub
2) Plugable USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter
3) Micro USB Host OTG Cable with Micro USB Power
4) Smart Touch Mini USB TouchPad Keyboard
5) Full Size trackball mouse
6) Charging cord
I am charging the battery with ethernet, keyboard and mouse plugged in.
No Problem. But this is also after the kitkat update which added the charging while ethernet is plugged in.
Click to expand...
Click to collapse
Did you plug all the devices in a particular order? I noticed that if I plug in my charger AFTER I plug in the OTG cable into the shield, then it is not charging. But when I plug in the charger into the OTG cable and then plug it into shield, it is charging.
Is your hub powered? What exact model is it? I am asking because I have very similar setup to yours but the shield does not detect USB devices connected to the hub - it's this one: http: // esperanza . pl/esperanza-usb-2-0-hub-4-porty-ea116,182,437.html
I can connect one usb device directly to OTG cable and it works, but when I connect a hub, it no longer works.

There is a cheap way to do this if you have the soldering skills, and are willing to try it.
Get a cheap USB "Travel" hub.
Open it up, and replace the Upstream USB cable with an OTG cable (A scrap Micro-USB cable may or may not work. The connector must be Properly wired for OTG).
Remove the main power diode in the USB hub, and solder jumper the 2 pads where it was. A Multimeter in continuity mode can help you find the right component, but it takes some experience. There usually is not much in a cheap travel hub, so I can usually find them just by looking, but like I say, only try this if you have the experience, and you know what you are looking for.
Power the hub through it's 5V power jack (if it has one), or you can add a power only micro-USB socket. (Only connect the (+) and (-) power pins, do not connect the data lines. Connect it to any one of the Full size USB port's power pins. Observe polarity.)
Voila! You now have 4 Full size USB ports, it will charge your device, and provide power (Up to the rated power of the AC adapter) for your USB devices.
I did this years ago in the Nokia 770 days. It was one of the first consumer devices that supported USB OTG. Article still exists here:
http://www.linuxslate.org/N770DockingStation.html (Scroll down to the "Electronic Components" Section)

Would this work?
Would this: SODIAL(R) Micro USB Host OTG Cable with Micro USB Power plus this: Anker® Unibody 3-Port USB 3.0 and Ethernet Hub
Give me the ability to charge tablet, use Ethernet and additionally connect USB mouse and keyboard, and possibly charge Nvidia Game Controller?
Or would it just be a waste of time and money

[Q] External Hard Drive woes...

Not sure if this is the correct place for this, first time posting.
So I'm having a hell of a time getting my Western Digital 2TB external drive to connect to my Nexus 7 2013. I have both Stickmount and Nexus Media Importer installed, and I'm rooted with Cyanogenmod, and I have a working OTG cable.
I know that the Nexus 7 doesn't have enough power to support most external hard drives that use a USB for power. So I bought a 12000mAh external battery with a 5V 2.1A output USB port, and a 4-port (unpowered) USB hub from Radioshack.
Along with those, I had to hunt down a male-to-male standard USB cable in order to connect the female port on the hub to the female port of the OTG cable (using the standard USB-to-micro doesn't work, because for some reason the OTG cable is specifically required to mount USB devices on Android, as you guys probably know).
After finally getting the male-to-male cord today, I tried hooking it up and still no luck. NMI detects the OTG cable but cannot detect the external drive. It works just fine with a flash drive.
Now after looking at the reviews of the USB hub on the site that I linked to, I'm thinking it may be the problem. If you look in the comments you have multiple people stating that this specific hub doesn't play well with many external drives. I haven't had any troubles with it through my PC, but you never know. I've also tried switching between the USB 3.0 cable that came with the drive to a standard USB-to-micro charge/data cable (with no luck), because I've read that NMI doesn't support USB 3.0
Does anyone have any advice or experience with this kind of thing? I'm thinking I may need to find a Y adapter that has one female and two male plugs so I'm not having to go through a potentially-crappy USB hub. But I'm not sure if that'll actually fix the problem or not. From searching around on the web a bit, it seems that connecting this specific drive with the Nexus 7 shouldn't be all that difficult, there's plenty of simple guides out there to demonstrate.
Just to recap, here's my connection process:
- Connect USB hub to external batter (2.1A port), make sure battery is ON
- Connect USB from External Drive to an open port on the hub
- Connect male-to-male USB cable to another port on the hub
- Connect M2M cable to the OTG cable
- Connect OTG cable to Nexus 7 (while on, with 90%+ battery)
- Nothing happens
EDIT - Would have included links to the specific devices, but I'm new to XDA so they won't let me post link yet.

I have a WD 1TB USB3 external drive. The only way I got it to work was by installing Paragon exFAT, NTFS & HFS+ (Available on the Play store), connecting the drive through a normal OTG cable, and rebooting the Nexus WITH the cable connected. Yes, I have to reboot every time with the OTG cable plugged in. I can plug/unplug devices as much as I want, but once the OTG is unplugged, I have to do another reboot; it's annoying, but it is better than nothing. Give this a shot.
Also, what ROM/Kernel are you running?

is the drive formatted as NTFS or exFAT? maybe try the ElementalX kernel as it supports both formats for USB OTG and see if that helps?
http://forum.xda-developers.com/showthread.php?t=2389022
edit- just remembered that i came across extra files on the Stickmount XDA page a while back that lets Stickmount support NTFS and exFAT drives, if flashing a custom kernel isn't your thing then you could try that..
http://forum.xda-developers.com/showthread.php?t=1400034

I finally got it to work, and now I just feel foolish.
I just needed to switch two cords. I had the male end of the USB hub plugged into the battery, and then the external drive and male-to-male USB plugged into the hub. The male-to-male cord then went to the OTG and the tablet. This apparently didn't let the data/power through correctly.
I went down to the local computer shop and the guy showed me that I was doing it wrong. Instead of using the hub's male end to hook up to the battery, I needed to use the m2m cord for that. The male end of the hub now connects to the OTG, and it works like a charm. I have to make sure to power up the drive and give it a second before connecting it, but Stickmount detects it right away and I have all my content.
I was pretty sure I'd tried every configuration and that I'd need a Y cable for sure, but I'm glad that's not the case even though I feel like an idiot now, haha.

Use USB-C On the go (OTG) and power charging simultaneously?

Hello out there.
Has anybody figured out a way to using a USB-C On the go (OTG) adapter for OTG functionality, and get power charging working simultaneously?
I have seen some people have had success using USB Y cables with micro-USB OTG, but haven't read anything confirming this works or is even required using USB-C compatible phones such as the Nexus 5x. I saw some Startech Y cables are available for purchase and some dodgy homebrew setups which I wouldn't attempt personally!
I have a USB-C OTG connector and a mains powered USB 3.1 hub. With this setup I can charge or use USB devices successfully on the phone, but it's one or the other, not at the same time. I'm forced to choose the USB charging option on the phone to switch between the two.
Any thoughts or experience on this using a Nexus 5x or similar? Cheers!

And sort of related - new Macbook can drive an external display over USB-C. Can Android / Nexus 5x?

I have also been looking for this - to allow always-on wired ethernet. Have not found a solution. My Nexus 5X will last for several days when the ethernet adapter is externally powered by a hub, however. The trick is to make sure nothing is running except essential comms and email when on standby. The new Marshmallow Developer mode allows this, by selecting most apps to be 'inactive' during standby and only allowing one app to run at a time. My phone runs for weeks at a time in standby when there are no ethernet connected and no WiFi/4G. Connecting wired ethernet cuts that to about 7 days, depending on email notification activity.

trevmar said:
I have also been looking for this - to allow always-on wired ethernet. Have not found a solution. My Nexus 5X will last for several days when the ethernet adapter is externally powered by a hub, however. The trick is to make sure nothing is running except essential comms and email when on standby. The new Marshmallow Developer mode allows this, by selecting most apps to be 'inactive' during standby and only allowing one app to run at a time. My phone runs for weeks at a time in standby when there are no ethernet connected and no WiFi/4G. Connecting wired ethernet cuts that to about 7 days, depending on email notification activity.
Click to expand...
Click to collapse
I'm on the same boat, needing to have a Nexus 5X connected via Ethernet and powered.
So far I've tried:
- a USB Type C to USB female OTG cable
- a USB Type C to microUSB adaptor via a Dell powered USB OTG cable and a powered Acasis OTG USB Hub
but I got the same behaviour:
- USB OTG works with Ethernet and no power
- USB C to USB OTB HUB/powered OTG adaptor = power, but no OTG functionality
Is there a an updated USB C OTG pin out diagram available ?
(Similar to this one ? http://forum.xda-developers.com/showthread.php?t=2303902)

Can't use usb otg feature when usb is connected thru a magnetic cable adopter. Help!

So I recently bought a magnetic cable adopter, It has two parts an android micro usb head and the body where it can connect to the usb head with the use of magnet and the other side is a micro usb port the body also has a led indicator.
Given that my phone is usb otg capable, when I connect my usb to the micro usb port at the body of adopter my phone can't read it.
Is this a hardware problem where the magnetic adopter is not capable of reading other devices eg. Usb, mouse, keyboard etc. and only supports charging?
Or can I still use the usb otg features by using a 'usb otg cable Y'?
Or is there other way?
Sadly I can't try usb otg Y since I haven't bought any and want to make sure it will work before I buy.
Feel free to ask more information if it's not sufficient enough. Thanks!

OTG + Magnetic cable
Same problem but at least I know that OTG can (should?) work through a magnetic cable as I have another device on which it does.