Use predefined function types for parse driver functions used to set up function...

Use predefined function types for parse driver functions used to set up function pointers.
Account for changed prototype of parse_inp_fnc_t functions.
Cast parse conversion results to appropriate types to avoid compiler warnings.
Let ioctl() for Windows accept a (void *) to avoid compiler warnings when called with pointers to different types.

bk: 550af0a5RYsn8g_t3WsPB9NfRklECg