C
static void HIDClassInit( unsigned int VendorID, unsigned int ProductID, unsigned int BuffSize, unsigned int Timeout );
Description
Initializes the DLL with the VID, PID, and Buffersize of the device. This function should be called before attempting to communicate with the device. The reads and write use overlapped transfers. This version allows specifying how long to wait before timing out. The default is 1000mS.
Preconditions
None
Parameters
|
Parameters |
Description |
|
VendorID |
16 bit unsigned integer. |
|
ProductID |
16 bit unsigned integer |
|
BufferSize |
16 bit unsigned integer. Usually 64 |
|
TimeOut |
16 bit unsigned integer. Time in mS to wait for a read or write to timeout before returning. |
Returns
Nothing
Remarks
This function, or an overloaded variant, should be called proir to attempting to communicate with the device.
Example
MCHPHIDCLASS::HIDClassInit(0x4D8, 0x0F00, 64, 250);