gs702c - Get USB-Endoscope-Camera to work

Hello,

i have a USB-Endoscope-Camera (with 10m cable) to inspect my draining away. This works perfect with my Laptop.
I have a cheap 7" Tablet lying around...and try to get the USB-Camera to work. But no program recognizes the camera.

If i use the App "Dashcam" i get a message: "Device has no UVC Driver". I think that is the problem.

Here is the Device Info:

Code:

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KV78PH 21

SYSTEM (Android 4.4.2)
        Model: KV78PH-21
        Manufacturer: KV78PH-21
        Device: gs702c
        Product: full_gs702c
        Brand: Android
        Android Version: 4.4.2 (Kit Kat)
        API Level: 19
        Build ID: KOT49H
        Fingerprint: Android/full_gs702c/gs702c:4.4.2/KOT49H/eng.liuzi.20140701.121506:userdebug/release-keys

DISPLAY (800x480)
        Size: 800x480
        Refresh Rate: 59,89 Hz
        Default Orientation: Portrait
        Physical Size: 6,71" (17,05 cm)
        Logical Size: Normal
        Density: 160 dpi (Medium)
        Pixels Per Inch: X: 131,95; Y: 141,77

PROCESSOR (ARMv7)
        Processor: ARMv7 Processor rev 1 (v7l)
        Cores: 2
        Max Frequency: 1308 Mhz
        Instruction Sets: armeabi-v7a, armeabi
        SIMD Instructions: NEON

MEMORY (1024 MB)
        System RAM: 1024 MB
        JVM Max Memory: 64 MB
        Internal Storage: 993 MB
        External Storage: 5805 MB

BACK CAMERA (1,9 megapixel)

SUMMARY
        Max Picture Size: 1600x1200 (4:3)
        Zoom: 4x
        Autofocus: Supported
        Orientation: 90°

GRAPHICS
        OpenGL 2.0

ACTIONS HARDWARE
        actions.hardware.hdmi

ANDROID HARDWARE
        android.hardware.bluetooth
        android.hardware.camera
        android.hardware.camera.any
        android.hardware.camera.autofocus
        android.hardware.camera.front
        android.hardware.faketouch
        android.hardware.location
        android.hardware.location.gps
        android.hardware.location.network
        android.hardware.microphone
        android.hardware.screen.landscape
        android.hardware.screen.portrait
        android.hardware.sensor.accelerometer
        android.hardware.sensor.compass
        android.hardware.touchscreen
        android.hardware.touchscreen.multitouch
        android.hardware.touchscreen.multitouch.distinct
        android.hardware.touchscreen.multitouch.jazzhand
        android.hardware.usb.accessory
        android.hardware.usb.host
        android.hardware.wifi
        android.hardware.wifi.direct

ANDROID SOFTWARE
        android.software.app_widgets
        android.software.device_admin
        android.software.home_screen
        android.software.input_methods
        android.software.live_wallpaper
        android.software.sip
        android.software.sip.voip

Created with Hardware Info 4.2.6

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The App "USB Host Diagnostics" found nothing when i connect the Camera to my tablet. I have testet on an Android Phone from my colleague...the cam works perfect.

I think without a UVC-Driver the Cam will not work. I have read that the UVC-Driver is in the Kernel. But I am not familiar with this.
I dont have found a way to update the Android on the Tablet. I have found no custom rom. Is there perhaps a way to get an other Rom to work?
Is there a way to get the camera to work with these Tablet? It would be better than an expensive smartphone or an expensive laptop to use to inspect sewer pipes.

Many thanks.