PDD Interface to the Touch Driver (Compact 7)
3/12/2014
The touch driver PDD implements a Device Driver Service Interface (DDSI) for use by the MDD. The following table describes the functions that the PDD provides in its DDSI.
| Function | Description |
|---|---|
Called by the MDD to obtain the pointers to the other PDD DDSI functions. |
|
Called by the MDD during deinitialization to deinitialize hardware, deallocate memory, and so on. |
|
Called by the MDD when its power-up function is called. |
|
Called by the MDD when its power-down function is called. |
|
Provides various control options to the MDD. |
The MDD calls these functions when the corresponding MDD function is called.
On initialization, the MDD calls TchPdd_Init, providing a pointer to a callback function that the PDD calls to report touch data to the MDD.
For more information about the DDSI, see Touch Driver DDSI Functions.