s7 after root uvc usb camera wont work - T-Mobile Samsung Galaxy S7 Questions & Answers

So i have a litle strange problem.
I have rooted and install custom recovery for my s7 magisk root and twrp recovery.
And after that i cannot use anymore external usb otg camera from laptop(DIY).
the usb camera works fine on s5, lenovo tablet etc. but on s7 it wont recognize anymore.
Mouse keyboard etc works fine.
Just in mind the camera worked before root
Anybody have solution or anything becouse its nice to record driving with motorcycle where is camera mounted.

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Usb otg doesnt work (galaxy note pro 12.2 5.0.1)

I start by data:
Galaxy note sm-P905 lollipop pro 5.0.1 (formerly KitKat, and was rooted)
Problem: it does not work usb OTG (I tested one dedicated for galaxy note that has its own power supply, and one for any smartphone (without power support) )
Story: when I was the KitKat, i bought the OTG with power support, and recognized it without installing anything (I do not remember if i bought it before, or after the root). The fact is that i didnt used OTG too much, but when I had the lollipop (I tried rooted and non rooted), does not recognize any USB.
The funny thing is that when I check otg with otg checker app, it detects the OTG, but not the pendrive (if i put one).
The otg wich has own feed has a light, it illuminates when this one connected to the tablet , anyway checker recognizes the OTG but not pendrive.
I saw on the internet that the problem could be the kernel, but not how to find the stock. Try installing one with the odin but I put that value was incorrect.
current kernel:
3.4.0-4719750
[email protected] #1
Thu Apr 23 00:41:10 KST 2015
Sorry for use google traslator
Capuyo300 said:
I start by data:
Galaxy note sm-P905 lollipop pro 5.0.1 (formerly KitKat, and was rooted)
Problem: it does not work usb OTG (I tested one dedicated for galaxy note that has its own power supply, and one for any smartphone (without power support) )
Story: when I was the KitKat, i bought the OTG with power support, and recognized it without installing anything (I do not remember if i bought it before, or after the root). The fact is that i didnt used OTG too much, but when I had the lollipop (I tried rooted and non rooted), does not recognize any USB.
The funny thing is that when I check otg with otg checker app, it detects the OTG, but not the pendrive (if i put one).
The otg wich has own feed has a light, it illuminates when this one connected to the tablet , anyway checker recognizes the OTG but not pendrive.
I saw on the internet that the problem could be the kernel, but not how to find the stock. Try installing one with the odin but I put that value was incorrect.
current kernel:
3.4.0-4719750
[email protected] #1
Thu Apr 23 00:41:10 KST 2015
Sorry for use google traslator
Click to expand...
Click to collapse
You might try a different usb device if you haven't already.
I had a USB drive go bad on me and I thought I was having the same issue and tried multiple OTG adaptors before I figured out it was the drive.
Unfortunately I'm still on kitkat to avoid losing root but I thought I'd chime in just in case it turns out to be something simple.
Yesterday i went back to kk, and it recognized the hub usb (with power supply), but not the pendrive. I had to wipe all the data, and now im in lollipop again. I tried to flash cyanogen too but i haven't found it (well, i found it but i couldn't install it [tried with odin and TWRP])
Im a bit tired trying to solve this, so i've decided to give up and do an pendrive organizer with the hub :victory:

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