I have a question concerning USB host mode.
I want to take my NOOK color and hook it to my powered harddrive and move over a video file to the nook memory card without the use of a computer.
I bought a micro usb to usb female adapter.
Is that all i need?
Ive seen talk that you need a powered usb hub too which kind of defeats my purpose.
Thanks
You shouldn't need a powered hub with a powered hard drive... the reason some require a powered hub is the devices require more power than the nook provides... so the hub provides the power.
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Disclaimer - This is my first post on this site, so I'm going to try to be strait forward and concise, I'm sorry if any info I give lacks a certain panache.
First and foremost, if you want to use a hard drive on your phone through an HD dock, you must format your hard drive to Fat32. This is a very basic, but unavoidable step. That is if you don't want to make the entire process way more complicated. I used Easeus Partition Manager to format my entire 250GB hard drive (impressive I know). You can use other partition manager software, but Easeus is the one I'm used to, and I found a free download of it, which works perfectly on my old XP PC.
The Second step is to make sure you have enough power to make your hard drive usable, and thus be recognized by your phone. I used a USB hub with a Y-Cable and my phone charger to supply the extra power. Note: Do not put the additional USB power port on the HD dock, you will not get enough power. You have to use an additional power source for this method to work. I suggest using at least a 5V 1A charger, but my phone charger is 5.1V 850mA, and works perfectly.
Step Three is to connect the hard drive. This may seem like an unnecessary step, but there is some important things to know. Do not plug multiple storage devices into the hub. There seems to be some priority conflict when this happens. Thus, if you have a Thumb Drive and a Hard Drive, connect the Thumb drive to the HD dock directly, and the Hard Drive to the hub. I haven't tested if there is a similar conflict with two hard drives being plugged in to the hub simultaneously, nor two thumb drives. There also seems to be an issue where if you only have the hard drive plugged in, but no other storage device in any port, the hard drive still won't be detected. So, you may need to plug a thumb drive to your HD dock, and then a hard drive to the hub. This results in your phone calling the Hard Drive the same device name as the Thumb Drive, but the two are shown separately in the file manager.
The hub I used was a Micro Innovations 4-Port USB hub [Model # USB210P/USB210P-F], with a Mini USB port for the main data connection. As such, my Y-Cable was a Mini USB to Full USB Y-Cable. My USB enclosure for my hard drive was made by Manhattan, which has a single USB power/data connector. My Thumb Drive was a 16GB SanDisk Cruzer Micro. My additional charger was my stock Droid Bionic charger. I also used USB extension cords as needed.
In regards to my use of a hub and a Y-Cable there are a couple simple alternatives. One is to use a Y-Cable with a full sized female USB connection in stead of a Mini USB connector. This would allow you to forgo the USB hub. The other alternative is to, depending on the hub you have, use the provided wall charger to directly power the hub, thus not needing the phone charger, nor the Y-Cable.
This method of allowing your Hard Drive to work on your HD dock should work on other devices, as well as (with minimal alterations) silversonic1's guide "How to use USB Host without an HD Dock." http://forum.xda-developers.com/showthread.php?t=1495720
Please let me know if this helped you, and feel free to post any additional info on your success and methods used.
Edit 05/28/12: My brother bought a power converter that gives 5V 2.1A, or an optional 5V 1A on two ports. It's an RCA AC to USB converter, model # PCHUSB2R. This adapter was able to supply enough power to my hard drive for it to be read without my Thumb Drive being plugged in as well. It appears that the biggest problem the HD Dock has is that it does not give enough power to charge the phone and power a hard drive through USB. The normal power supply provides 12V 1.5A to the Dock, but I don't know how that power is distributed throughout the Dock. This apparently causes problems, but the additional Amps from the new adapter resolves a lot of them.
Although, recently I've had the problem of the Hard Drive failing on the phone's OS, but not on the Webtop OS, so the hard drive is still usable where it needs to be. You just have to go into the Webtop's file manager to unmount it once your done, but sometimes it won't say it's unmounted, so be careful. Also, the hub solution still doesn't allow you to plug in extra storage devices. It seems you're limited to one storage device per USB port on the dock itself. So, a max of 3, while, theoretically, you should be able to plug in up to 7.
thanks for the concise guide, i've been mulling over NTFS hacks for a while but frankly id probably not be worth the time.
currently i have a USB hub connected to my lapdock by a USB A (back port on lapdock) to mini connector on the hub. correct me if im wrong, but if you actually own the HD or lap dock, USB host mode is activated for you and thus you do not require an OTG cable (assuming you have adequate power for your components)-
i'm working on trying to mount a USB dvd drive, it is being detected correctly however i wonder if the issue you presented with the HD failing to mount without the thumb drive could also present itself here? (seems like simply mounting the DVD shouldnt be too difficult, but device drivers for writing i havent come across..)
nitephlight said:
thanks for the concise guide, i've been mulling over NTFS hacks for a while but frankly id probably not be worth the time.
currently i have a USB hub connected to my lapdock by a USB A (back port on lapdock) to mini connector on the hub. correct me if im wrong, but if you actually own the HD or lap dock, USB host mode is activated for you and thus you do not require an OTG cable (assuming you have adequate power for your components)-
i'm working on trying to mount a USB dvd drive, it is being detected correctly however i wonder if the issue you presented with the HD failing to mount without the thumb drive could also present itself here? (seems like simply mounting the DVD shouldnt be too difficult, but device drivers for writing i havent come across..)
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Thanks for the reply.
It may be mostly power consumption problems for the most part for my set-up. After all I have my Thumb Drive, my Hard Drive, and a wired keyboard with built in USB 1.0 hub (which I connected a wireless mouse dongle and a USB powered fan to). But I did notice that my particular Hard Drive enclosure and Laptop Hard Drive won't work without the extra power. The light on it will turn on, but the Hard Drive remains inactive.
I just ran another test with nothing but the hard drive plugged in, but it wasn't readable until it had both extra power and my Thumb Drive connected. I don't know what exactly is up with this, but I know someone (other than me) will figure it out. I simply am not experienced enough with programming nor diagnostics to be able to find the cause, but I at least can work around the symptoms.
Alright so i bought a usb powered hub, a usb OTG cable, and a usb DAC. I can get the usb DAC working fine by hooking everything up but i cannot get the Nook to charge while in USB host mode. Is this a problem with the settings on the Nook or the USB hub i bought? Also is there any way to charge the nook at 2A while in USB host? I assume this would require a custom cable but i have found very limited information on the internet.
desitdt said:
Alright so i bought a usb powered hub, a usb OTG cable, and a usb DAC. I can get the usb DAC working fine by hooking everything up but i cannot get the Nook to charge while in USB host mode. Is this a problem with the settings on the Nook or the USB hub i bought? Also is there any way to charge the nook at 2A while in USB host? I assume this would require a custom cable but i have found very limited information on the internet.
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I could be wrong or downright delusional, but I didn't think you could (or worse yet, could cause damage if you tried).
Sent from my Nexus 7 using xda premium
when looking at the storage control panel, it lists internal, sdcard-ext, and then "/mnt/usbdisk_1.1.1" and says "insert an [sic] USB disk for mounting".
so if i were to come up with some sort of adapter, could i plug a thumb drive into my phone's micro usb port to move files between the phone and the thumb drive? i can think of plenty of times that would be useful!
Tried. OTG cable works with Samsung galaxy S2 devices (Skyrocket using either SKY ICS or rooted OTA) but haven't got it to work on our Droids...(Bionic ICS leak, RAZR ICS OTA, Droid 4 ICS OTA...all rooted).
But if someone can prove me wrong I'd be happy to "eat my words" ...
Be strong and very Koragus, my ninja...
OTG works, BUT only in a very cumbersome way, since external power is needed.
A powered USB hub does not suffice, since it only powers the slave devices, not the host (= phone). The phone must be in charge-mode, which requires a Y-cable.
You need:
- an OTG adapter
- a USB hub with mini-USB in
- a USB Y cable with 2 normal USB plugs and one mini-USB out
Then
1. Connect the OTG adapter to your phone's micro-USB input
2. Connect the 'middle' USB plug of the USB Y cable into the OTG adapter
3. Connect the 'outer' USB plug of the USB Y cable to a charger (can be a portable battery as well)
4. Connect the mini-USB plug of the USB Y cable to the hub output
5. Connect any device you want to use to the USB hub
It looks like this (found this picture for Razr):
http://www.flickr.com/photos/teppan_hakushaku/6817735705/
Edit: I verified it for Droid 4 last week, but didn't take my own picture yet. Works with ICS .215 leak, no 3rd party apps (like 'StickMount') seem to be needed.
Edit2: According to some other posts in this forums (search for 'OTG') it will only work for FAT32 formatted drives. Didn't check this in detail but my drive was already FAT32. Also I found it did not work for my cheap wireless keyboard's USB dongle, but connecting a wired keyboard worked fine.
...reminded again why I love this community...
...no possible links to a purchase of this "y" cable?
Be strong and very Koragus, my ninja...
Glad I could help!
They come with some portable harddisks, so that's where I got mine. Not sure about the linking policy on XDA, please remove if not allowed. Here's an example:
http://www.dealextreme.com/p/usb-2-0-mini-5-pin-to-a-male-power-y-cable-62-cm-65630?item=10
Hi friends,
I want to attach to my touchpad memory card reader and external hard drive.
I wonder if it will be possible instead of buying Y cable and connect it to the OTG, to use my existing USB hub and connect to him the devices and the external battery bank.
Will it work?
Thanks
avizov2 said:
Hi friends,
I want to attach to my touchpad memory card reader and external hard drive.
I wonder if it will be possible instead of buying Y cable and connect it to the OTG, to use my existing USB hub and connect to him the devices and the external battery bank.
Will it work?
Thanks
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Click to collapse
im assuming youre talking about doing this in android 4.0.x +. if so then yes you should be able to connect an externally powered usb hub to the OTG cable and connect more than one device at a time.
Thanks
haxin said:
im assuming youre talking about doing this in android 4.0.x +. if so then yes you should be able to connect an externally powered usb hub to the OTG cable and connect more than one device at a time.
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Click to collapse
Yes android 4.
to be precise, I don't have powered usb hub.
I have normal usb hub which I will connect him the power with usb battery bank device.
will it work?
avizov2 said:
Yes android 4.
to be precise, I don't have powered usb hub.
I have normal usb hub which I will connect him the power with usb battery bank device.
will it work?
Click to expand...
Click to collapse
Yes. You need to give power to the periphal usb devices. I tried the same yesterday, without problems.
Hey all
I have a powered Belkin USB hub (this one: http://www.belkin.com/us/F4U040-Belkin/p/P-F4U040), coupled with an OTG cable which I know work together, as my Kindle Fire recognizes all USB devices through this setup (Keyboard, Mouse, Flash Drive etc).
I was surprised to find that my HP touchpad does not recognize any devices connected to this hub.
I did some diagnostics with USB Device Utility, and the touchpad recognizes my USB OTG cable, as it shows as a 'Qualcomm On-Chip EHCI Host Controller'.
The touchpad simply does not see anything plugged into the hub, be it a keyboard, mouse or flash drive.
Please help me here, guys!
What am I doing wrong?
Thanks
MainCourse said:
Hey all
I have a powered Belkin USB hub (this one: http://www.belkin.com/us/F4U040-Belkin/p/P-F4U040), coupled with an OTG cable which I know work together, as my Kindle Fire recognizes all USB devices through this setup (Keyboard, Mouse, Flash Drive etc).
I was surprised to find that my HP touchpad does not recognize any devices connected to this hub.
I did some diagnostics with USB Device Utility, and the touchpad recognizes my USB OTG cable, as it shows as a 'Qualcomm On-Chip EHCI Host Controller'.
The touchpad simply does not see anything plugged into the hub, be it a keyboard, mouse or flash drive.
Please help me here, guys!
What am I doing wrong?
Thanks
Click to expand...
Click to collapse
Are you sure that's powered? The picture doesn't show any DC connectors. Is it powered by something like a mini USB to USB cable on the back? If so, that might not be enough to power the device and the peripherals attached to the ports.
Belkin Hub
Daistaar said:
Are you sure that's powered? The picture doesn't show any DC connectors. Is it powered by something like a mini USB to USB cable on the back? If so, that might not be enough to power the device and the peripherals attached to the ports.
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Click to collapse
The belkin does have an external dc power supply and is not powered via usb
I think you need a Y cable even with a powered hub as its purpose is to inject power back into the OTG chip in the Touchpad.
I added the usb host support and flash drive and mouse work great. I was wondering if a USB powered hub would charge the Nook HD+ when multiple devices are connected.
I don't believe it will currently charge while using usb host is on. One or the other.
interesting, thanks for the response.
If you're using verygreen's firmware, there's some tips (info from 4pda.ru).
In order to charge Nook you have to power up the Hub first, then connect a devices to the hub, then connect the Nook, then switch USB Host mode.
USB flash drive automount works only if the drive connected to the first port on the hub or directly to the Nook.
If USB device consume more than 100mAh of power than you must use the Hub (even unpovered).