OTG + Power (charging) simultaneously - is this possible with the phone i know there are a few "otg/host controller" apps available - which one works best on this particular device (my device is rooted - does this make any difference), and do any of them permit charging and using host functionality using some sort of usb 'Y' connector? So I can use the otg + charge ?
USB OTG & Charging at the same time
Well it is possible, please read this one first http://forum.xda-developers.com/showthread.php?t=1092493&page=5
and have look on this https://www.youtube.com/watch?v=-v7DjU6nsVM
I am going to try it my self as well, as I have Sony XPeria P. I would like to use it as mini android PC.
Related
Sorry 4 the prev thread in wrong section .. then .. One S ( stock rom or another custom rom - with or without Sense ) supporta the usb-host mode ?
I am reasonably sure that out of the box, on stock ROM it does not support the ability to act as an USB host. Additionally, the microUSB on the phone is an USB slave socket, so it would need an adapter to connect a USB slave device to it anyways. (At least I have not yet seen a native USB-Host device with a microUSB socket.)
I am pretty certain it can be hacked into a custom ROM or application, however there are limitations to this. Commonly a device that is designed as USB slave (like the One S) will not be able to power devices through the USB port as regular USB hosts have to.
So IMO, in order to get it to work as an USB host you would need an adapter to connect the devices properly, a modified firmware or specialized app AND a way to externally power the USB slave you want to connect to the One S acting as USB host. The external power might a portable USB charger battery (like the Gumpack) or an Y-cable which is connected to a "real" USB-Host device just for the power (or a car/wall USB charger).
So, theoretically it would be possible, but not very practical. To the best of my knowledge it has not been done in the past because there was no need to. This however might actually change with the current trend towards non-expandable memory on newer phones... if demand rises I bet manufacturers would come up with solutions. Think small USB storage sticks with regular USB plug on one side for use on Notebook/Desktop and a microUSB plug on the other which contain a tiny battery (think Bluetooth headset size) to power the stick while attached to the phone and are charged while connected to a real USB Host port which is designed to deliver juice.
Further reading: http://en.wikipedia.org/wiki/Universal_Serial_Bus#Connector_types
I have a custom USB peripheral that I use to communicate through USB OTG of the tablet. The device is wired in such a way, that I don't use a Y-cable. In the USB line, I have wired it so that the device can either be powered by the tablet, or it can be powered by an external power supply.
Scenario A:
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When the USB peripheral device is self-powered, it directs power to itself and sends the power to the tablet as well. The tablet is charging while hosting the peripheral device. The USB connection is still intact.
When the power is pulled, the USB peripheral device shuts off completely. What should happen is when the power is pulled, the tablet should detect this and start supplying power to the USB peripheral. This doesn't happen for some reason, until the tablet is rebooted. When the tablet reboots, it detects that there is a USB device plugged in, and starts supplying power.
Scenario B:
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When the USB peripheral is bus-powered, (meaning the tablet is currently supplying power to peripheral device and is currently hosting it), plugging in the power to the peripheral SHOULD start charging the tablet. This doesn't happen. Instead, the tablet continues to discharge.
So basically, I would like the tablet to supply power to the USB device when it detects that the power is gone. Alternatively, when the tablet detects power coming into its port, it should start charging.
Because I custom made the USB peripheral device, I am able to manually force the host to re-enumerate the device by pulling down the 1.5K pullup (hopefully you know which one I am talking about). Do you think this will work? In my application, I wouldn't have access to the OTG adapter and therefore I wouldn't be able to pull it out from the tablet. [That's what he said...]
How would I come to realize in my app that the power is lost and I need to re-initialize a new handle for the USB stream? Suppose I am able to do this, re-initializing the USB port will enable the tablet to start charging again?
Thanks.
Hello, I got this OTG cable but it has additional power plug and it might be used with hard disks, because it support additional power for disk, otherwise it wont work.
Question is: if it utilizes external power from AC adapter (stock one from my tablet) does it drain my tablet's battery just like memory stick via regular OTG? Or it just consume power from external adapter?
Otg problem.
sun yellow.
I have otg problem in Xperia l error. how to resolve this i s pic
Pic
I don't even
Firstly, normal otg cable won't work, you need a extra usb plug on it to provide power to the usb device
Second, if you can't find/mod the wire yourself, get a powered usb hub
I use otg +y. Cable to provide extra power but problem not solve
How to write mod
No. You modify the cable. Not write it
And also, for me it always errors. But it works
hello, I have tested using mousepad, logitech unify wireless keyboard mouse, usb drives, they all work well with my asus zenfone
zenfone > $2 usb-otg cable > usb hub
usb powerbank > usb hub to give the devices power
so with the power from the usb powerbank, the devices get power and android recognises them.
good, but, is there a way to use the phone as usb host, but charge it at the same time ? maybe, a "usbotg" - Y dual cable ?