Driver standard functions

[Etienne Fortin]

Hi,
Is there any documentation somewhere that explains in details the
arguments that are passed to the driver entry points in RTEMS? In
particular, what are the types of the "void* arg" argument passed to
initialize, open, close, read and write?

For example, let's say I create a driver for a special kind of device
and that app code use "open(..-.)" on it, what is pointed by void* arg?
And if app code use "write(...)", what is pointed by void* arg, what
structure, what type?

Thanks,

Etienne Fortin