Regarding driver interface for user space

Rahul Bedarkar rpal143 at gmail.com
Thu Oct 11 08:52:03 EDT 2012


Hi,

What interfaces are provided by device drivers, in general, to user space
to access status and other information ?

For example, if have enabled rotatry encoder driver and touchscreen driver,
how can write code in my application which will process rotatry encoder
data like how many relative or absolute rotation happened, if these were
clockwise  or counter clockwise, etc. And in case of touchscreen driver,
touch events ?

Thanks,
Rahul Bedarkar
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