DRV_MIIM_Open Function
C
DRV_HANDLE DRV_MIIM_Open(const SYS_MODULE_INDEX drvIndex, const DRV_IO_INTENT intent);
Returns
valid open-instance handle if successful (a number identifying both the caller and the module instance).
DRV_HANDLE_INVALID if an error occurs
Description
This function opens the specified MIIM driver instance and provides a handle that must be provided to all other client-level operations to identify the caller and the instance of the driver.
Remarks
The handle returned is valid until the DRV_MIIM_Close routine is called. This function will NEVER block waiting for hardware.
Preconditions
The DRV_MIIM_Initialize function must have been called before calling this function.
Example
DRV_HANDLE handle;
handle = DRV_MIIM_Open(DRV_MIIM_INDEX_0, 0);
if (DRV_HANDLE_INVALID == handle)
{
// Unable to open the driver
}