HOw to Write a API to test a driver

[konsang]

i have craeted a driver.This Driver is just a simple one wire driver which use to read the data from the EPROM device.I need to write a API to dispaly the data being read.So far, i have done the adapter code and now i need to write the API.
To write the API , what header file do i need to include?
Do i need to include the adapter.h file?
How i call the driver ?



regards
konsang