what is the difference between usbtouchscreen and usbhid?

I am trying to understand the touchscreens. And I came across these two kernel modules: usbtouchscreen and usbhid. I am confused as what is exactly the difference ? Lets assume I have a touchscreen connected to my hardware via USB, which among the two should I be using ? I know the obvious answer would be: try installing either and see if it works.

But what I am looking for is :

what is the data sent by these two drivers for a USB touchscreen, in case of either USBHID and plain usbtouchscreen?

And how does evdevconvert those different data packets/info into unified touch events ?

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Category: usb Time: 2016-07-30 Views: 4

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