Develop Bugs

USB Hosting Capabilities

So far I've used my Note II to host a mouse, a flash drive, and an SDXC card reader. I'm curious to know what the limits to its capabilities are. USB game pads/controllers? Hubs? Maybe even USB Ethernet adapters for wired usage?
I can update this post with a list of devices and device types that work, as we find them.

The PS3 Dual Shock 3 sixaxis controller works like a charm with GTA3. Just plug it in via the normal USB cord routed through a USB host adapter and you're good to go after hitting the pair button on the controller. Use the X button to accelerate, the square for braking/reverse, triangle to get in the car and circle to fight. The action is as smooth as it is on the normal console version of the game with no lags at all.

Use GN2 as portable gaming system? (setup question)

Here is what I know:
I can use a Samsung USB-to-HDMI adapter to display the screen on a TV while charging the phone. You can hook up a PS3 controller to the GN2 with a USB-OTG cable. I also know that you can connect certain devices to the GN2 via USB-OTG cable and a USB hub to charge the GN2 while using the peripheral.
What I would like to do:
I would like to be able to run an emulated two-player game on my GN2 while displaying on an HDMI connected TV, and having two controllers work at the same time for simultaneous two player action (ex. Street Fighter 2 Turbo for SNES). I already have a couple PS3 controllers as well as two generic USB PC gaming controllers that I would like to use.
Basically, is the USB port on the GN2 capable of being used to simultaneously charge the phone, and run the HDMI adapter and two USB controllers? If not, what about just running the HDMI adapter and charging the phone, then run two controllers via Bluetooth? Also, I see there is a smart dock (EDD-S20JWE) that looks to have all of the functionality I'm interested in, can anyone confirm this?
Thanks all.

I have never thought of that! I am also interested though!

EVOIXGSR said:
Here is what I know:
I can use a Samsung USB-to-HDMI adapter to display the screen on a TV while charging the phone. You can hook up a PS3 controller to the GN2 with a USB-OTG cable. I also know that you can connect certain devices to the GN2 via USB-OTG cable and a USB hub to charge the GN2 while using the peripheral.
What I would like to do:
I would like to be able to run an emulated two-player game on my GN2 while displaying on an HDMI connected TV, and having two controllers work at the same time for simultaneous two player action (ex. Street Fighter 2 Turbo for SNES). I already have a couple PS3 controllers as well as two generic USB PC gaming controllers that I would like to use.
Basically, is the USB port on the GN2 capable of being used to simultaneously charge the phone, and run the HDMI adapter and two USB controllers? If not, what about just running the HDMI adapter and charging the phone, then run two controllers via Bluetooth? Also, I see there is a smart dock (EDD-S20JWE) that looks to have all of the functionality I'm interested in, can anyone confirm this?
Thanks all.
Click to expand...
Click to collapse
I actually just tried this very setup the other day: HDMI out + PS3 controller. In theory it should be awesome... But I found that the HDMI out is super laggy (both in terms of framerate, and a pretty significant delay between what shows on the phone screen vs. the TV screen). I tried it on both a TV, and a PC monitor, and it was the same. I posted about it here: http://forum.xda-developers.com/showthread.php?t=2098948
It made every game I tried unplayable. I didn't even try a fighting game, but I'd imagine it would be even worse.
It makes the setup pretty unusable in my opinion, which has me pretty bummed out because I was really excited about it.
I'll just stick to GameKlip + PS3 controller for now.

Motorola Atrix Lapdock with Odroid U2

Hi, I don't personally own a atrix, but I have ordered a lap dock in the hopes of making a laptop with the Odroid U2 board. However, the U2 requires 5v 2A to power it. I was wondering how I could draw 2A from the lapdock.
Jerry

JerryBYong said:
Hi, I don't personally own a atrix, but I have ordered a lap dock in the hopes of making a laptop with the Odroid U2 board. However, the U2 requires 5v 2A to power it. I was wondering how I could draw 2A from the lapdock.
Jerry
Click to expand...
Click to collapse
I own an imito MX2 tv stick and it also needs 5V-2A power supply. And i get that from lapdocks USB port only issue i had was with the cheapo USB cable that came with device... i used one of the better once i already had and it works no problem
So I guess it should be hassle free for you too... just make sure you use a good cable

Any updates on this? I have an atrix dock i bought for modding but haven't touched yet. This u2 looks amazing.
On a side note it makes you question the price and size of desktops. For $180 imagine 2 of these were combined, 8core, 4gb ram....
Posted from Tapatalk 2 app

Really glad someone replied to this thread.
First off, I did some digging around the hardkernel forums and found out that you could indeed power the U2 off the lapdock micro-usb just fine.
Second, in reply to 96shox, the new Samsung S4 is rumoured to have a eight-core processor and I believe the future generations of the U2/X2 will use something like that and probably with 4gb RAM. So it may be a good idea to wait a while if you can

sheennick123456 said:
I own an imito MX2 tv stick and it also needs 5V-2A power supply. And i get that from lapdocks USB port only issue i had was with the cheapo USB cable that came with device... i used one of the better once i already had and it works no problem
So I guess it should be hassle free for you too... just make sure you use a good cable
Click to expand...
Click to collapse
You are using the micro-usb on the lapdock right?

Lapdock Help needed
Got Lapdock for 70~ dollars from ebay 2 weeks back. After reading so many blogs and viewing youtube videos, I thought my Raspberry Pi model B could be put for good use along with some of the awesome hacks I found on this site. BTW i also have a nexus one and recently a nexus 4. So naturally all this holds a place in the Lapdock realm of things to be connected to. My question is I have got the following wires after a lot of thought, could some one here tell me if this will work:
1. Raspberry Pi Model B
2. Lapdock Atrix 4G
3. Micro HDMI female -> HDMI Female Coupler as found here cgi <dot> ebay <dot> com/ws/eBayISAPI.dll?ViewItem&item=140943218129
4.Micro USB female to Micro USB Male Charger cable from Ebay
5. HDMI Male to Male coupler.
6. HDMI Male to Male extension Cable 3 feet
Idea is
1. Using Raspberry pi Connect #3 item above and #4 item to Lapdock. Then #5 sits on #3 and to #5 I connect the Rasp Pi. For power and control #4 to RaspPi. Will this work?
2. Laptop second monitor. Using #3 and #6 connect HDMI Male to Laptop and use.
3. Using Nexus 4: Need to buy either a Miracast receiver or a Slimport and hope it works. (Do I need to root the phone, if yes what is the ROM preferred?)
4. Using Nexus One: Not yet figured a way but as of now will not work.
5. For PS3 : Same way using #3 and #6.
I got the wires and plugs today. Sadly the #1 above does not work
I plugged in the Micro HDMI female -> HDMI Female Coupler to lapdock and then HDMI Male to Male extension Cable 3 feet to Raspberry Pi and powered Rasp PI with all possible means (Power from mains as well). Sadly when I opened up the lapdock nothing really happened. Blank Screen!!! I even ensured that the Lapdock is fully charged. If I press that little button below the opening slot it shows 5 tiny white LED's . But does this not have any kind of Power ON button. I opened the screen and try to use the USB at the back as a power source for my Raspberry Pi, sadly that too did not power ON.
Is the Lapdock DOA?? Better not be as I got in Ebay and dont know how to deal with it OR is Part #3 the culprit.
Any way to check if the Lapdock is dead with what I have before I order another round of wires. FML, all the enthusiasm went down with this.
Help please.

you can try with android tv stick
Sent from my MB860 using xda app-developers app

My Odroid U2 + Lapdock
Hi,
I know this is a late reply...
I just got my odroid U2 + lapdock project working last night so I figured I'd share the result. I used the bionic lapdock btw.
I'ts completely mobile. I was able to power the odroid off of one of the lapdock USB ports. The other USB port has a 4 port hub attached that contains the wifi and bluetooth adapter. The micro usb is connected the one of the USB ports on the odroid and has the power wire disconnected. It works in connecting all USB ports and the keyboard/mouse pad from the lapdock. The HDMI works for both the video and audio and is running at 720p.
I installed linaro 12.11 and all updates, including mali drivers, onto the odroid U2.
The only disadvantage is that the lapdock USB ports only supply power when the screen is opened so if you close the screen the power to the board is cut. Besides that it's running flawlessly!
Also, I used an old Nintendo 64 power supply for the "case", the odroid fan is mounted on top. I don't recommend it because it took a lot of modding to make it work. I removed the heat sink that comes with the odroid and put small copper heat sinks onto the chips which works great and doesn't overheat.
So I'm attaching the pics, most important part lol. By the way it's ugly.

lrussell851 said:
Hi,
I know this is a late reply...
I just got my odroid U2 + lapdock project working last night so I figured I'd share the result. I used the bionic lapdock btw.
I'ts completely mobile. I was able to power the odroid off of one of the lapdock USB ports. The other USB port has a 4 port hub attached that contains the wifi and bluetooth adapter. The micro usb is connected the one of the USB ports on the odroid and has the power wire disconnected. It works in connecting all USB ports and the keyboard/mouse pad from the lapdock. The HDMI works for both the video and audio and is running at 720p.
I installed linaro 12.11 and all updates, including mali drivers, onto the odroid U2.
The only disadvantage is that the lapdock USB ports only supply power when the screen is opened so if you close the screen the power to the board is cut. Besides that it's running flawlessly!
Also, I used an old Nintendo 64 power supply for the "case", the odroid fan is mounted on top. I don't recommend it because it took a lot of modding to make it work. I removed the heat sink that comes with the odroid and put small copper heat sinks onto the chips which works great and doesn't overheat.
So I'm attaching the pics, most important part lol. By the way it's ugly.
Click to expand...
Click to collapse
I've been thinking about doing something like this for a while! I'll PM you later on my ideas for this. Thanks for taking the plunge first my man!

does this run in native resolution? Does the U2 alow you to run 1366x768?

Yup
corruptsector said:
does this run in native resolution? Does the U2 alow you to run 1366x768?
Click to expand...
Click to collapse
Yes it runs in 1366x768. The lapdock is 720p but thats it. I'm pretty sure it won't run in a higher resolution image.

96shox said:
Any updates on this? I have an atrix dock i bought for modding but haven't touched yet. This u2 looks amazing.
On a side note it makes you question the price and size of desktops. For $180 imagine 2 of these were combined, 8core, 4gb ram....
Posted from Tapatalk 2 app
Click to expand...
Click to collapse
Exactly what was on my mind. Though I am expecting newer versions of U2 by the end of 2013 or start 2014, which would sport new exynos 5. Lets hope for the best.

[Q] USB peripherals

There doesn't seem to be much documentation on the USB port on the Fire TV, and I have a couple of questions regarding it.
1. The port seems to be powered, as I have seen people talk about stand alone drives. Is there anywhere that documents the actual power output in amps and volts? Is it the same as a standard USB port on a computer? I'd like to connect a splitter with a 1TB WD drive and a wireless mouse/keyboard combination, but I don't really want to buy a powered hub.
2. Is there a proper shutdown procedure for the USB port so as not to fry it? I had a motherboard go bad on a computer many years ago because I would remove a wireless mouse without properly disconnecting it. I would hate to do that to the only port on this piece of equipment.
Thanks

[Q]Recommended Powered USB Hub for powering the Pi's as well?

I recently got my hands on a Pi0 after already having a Pi1 and soon a Pi2 as well. Now I was wondering if anyone has experience with powered usb hubs to power the Pi's as well? I want to minimize the use of power sockets since they are pretty full all ready. I am looking for something with at least 7 ports (3 for the pi, 1 for the Pi0 for host, 1 wifi-dongle, 1 usb to ethernet, 1 mouse/keyboard).
Does anyone have some recommendations? And knows that it can do the job?

You can find a list of hubs that are verified to work with the raspberry pi if you search "RPi Powered USB Hubs" in google, it includes ones that back power (what you want) as well as ones that do not (what you do not want). I personally do not like to back power my raspberry pi's but I hope this helps!
edit: this is the wrong part of the forums for questions by the way you should ask in the "Raspberry Pi Q&A, Help & Troubleshooting" section of the forums.

Monoprice hub
I've had great success with a monoprice usb hub.
http://www.monoprice.com/mobile/pro...categoryid=10307&subcategoryid=1030702&cpncd=
If the link dosent work the product ID is 5328 (just search for that)
I've used it with both raspberry pi b and raspberry pi 2 (not at the same time)
If your using it near a always on psu you can hook it up to the PSU via a Pata connector.
FYI this is a proper hub and wont back power the device connected to it.
Another option
I did this with a corsair rm1000 and a pi b plus some bitcoin miners.
Just buy a Pata to sata adapter and cut the sata off.
Buy a usb micro cable and lob off the usb-a end
Strip, solder and seal the calls in the proper order (its been a few years sence i wired the PSU supply Method because I got out of moning)

I actually power numerous pi4 2, 4, and 8gb models with a powered Insignia (best buy's company brand) powered usb 3 hub just attatch a usb 3 (for extra thruput) from the pis to the hub. it will show a lightning bolt symbol on the screen when using the pi under load but thats because its 0.1 amps short which isnt that big of a deal unless youre running a crap ton of peripherals

i actually picked up quite a few of them for powering pi's in different places without any form of power brick or computer stuck in places like behind the tv, in the corners of the room (4 corner surround sound, 2 pis, a splitter running a cable to each sound bar screwed into each of the 2 walls in each corne mounted on each side of the room), throughout the house for spotify connect, and one in the front room with a 5% touch display as a viewing panel for my door's security camera. Next project im going to hook up a 50,000mAh solar battery, get a pi zero w, install a light sensor into the gpio, and write a script that pings my android devices (nvidia sheild, watch, phone, raspberry pi running android, and laptop running android) as well as my PC, so when the mail box opens up it senses light and sends a ping to my devices

this hub is actually powering a 2gb im using as a pi hole, a 4gb im using to run servers (check out servers ultimate on android), and another 4gb im using for retro gaming and media at the moment but when classes start back up ill reflash my backup with ubuntu and an arm port of vs code called OSS-CODE i use as a coding workstation in class. it truly is a desktop replacement now

oh holy crap i just realized this thread is years old

I shouldn't worry about it.
I still read it