[Q] USB Keyboard Mouse Reqs other than kernel, Rom & drivers - Android Q&A, Help & Troubleshooting

Hi,
I've been trying to figure this out for almost a year. I got a cheap Chinese tab with a microusb and a microusb host port. If my rom and kernel have usb otg support, drivers etc. (according to the usb host diagnostics app) why would my usb keyboard and mouse (and usb storage) not work with a nonpowered or even through a powered usb hub? Is there something I'm missing? I've tried stock rom, official update and even a custom rom with usb drivers. So one app gives me S3C usb host missing...and usb host diagnostics says kernel and rom support it...there are drivers which I checked by a root browser. I've tried with nonpowered OTG as well as through a powered usb hub. Nothing works. What else should I have?
Thank you!
EDIT: Found something interesting. If I connect my usb port to power and my keyboard or mouse to the usb host port, then they are detected...but if I disconnect the other port from power they DON'T work. I tried using a powered usb hub on usb host port...does not detect. Is this a problem with usb modeswitch?

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[Q] How to enable the USB host cable (OTG cable)on Resurrection Remix ROM ?

Hi there,
I'm running Resurrection Remix v2.4 on my I9100 and I'm wondering how I can enable my USB host cable.
When I used to run the stock samsung rom, my device automatically recognized the USB host cable. Now that I went to RR, my device won't recognize it anymore. Is there something that I can try/do to let my device recognize the USB host cable again?
+ 1
pyto said:
Hi there,
I'm running Resurrection Remix v2.4 on my I9100 and I'm wondering how I can enable my USB host cable.
When I used to run the stock samsung rom, my device automatically recognized the USB host cable. Now that I went to RR, my device won't recognize it anymore. Is there something that I can try/do to let my device recognize the USB host cable again?
Click to expand...
Click to collapse
use stick mount app from the playstore
edit : And u shud be running siyah kernel
Try
USB Host Controller app. I read a while ago that you should be using siyah kernel too.

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Solved: Samsung Galaxy S2 USB flash drive storage not working

I have Samsung Galaxy S2 on stock 4.1.2 ROM and have bought a USB OTG cable. I connect my USB flash drive onto USB OTG cable then connected the cable to my phone and it shows a message USB mass storage is connected. When I open My Files app, I cannot find any way to access my USB. Am I doing something wrong?
Edit: Solved, tried another USB and it worked.

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