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).
Related
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.
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.
Click to expand...
Click to collapse
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
Click to expand...
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.
Click to expand...
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.
Click to expand...
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've got a nexus 7 that I'm installing into a dash. I've bought an OTG Y-cable with power and a rosewill externally powered USB hub. I'm running USB-rom on the nexus 7. I plug everything in, power to the Y cable, power to the USB hub, and hub to the tablet. When I unplug the power from the USB hub it still remains powered on by either the tablet or the incoming power to the Y-cable. Is it possible the Y-cable isn't correctly wired for this setup?
There's a wiring diagram at http://forum.xda-developers.com/showthread.php?t=2113259 in with the pictures of an installation. AFAIK a USB hub will only get power via a dedicated socket and/or the host usb connection so if you've got a hub that accepts power from either source and there is a power source connected to the y cable then the dedicated hub power supply is redundant?????