Introduction - If you have any usage issues, please Google them yourself
In the driver set the touch screen in which seven different states, respectively, from-1 to 5 the number of characterization, this seven state constitutes a touch-screen state machine, the system made in accordance with the current state of the next phase of processing, such as Table 1 below. According to the entire software design features can be divided into five parts, which are initialized, equipment to open, read operation, interrupt handling, as well as I/O control