1.1.7.4.4 DRV_SDSPI_Close Function
C
void DRV_SDSPI_Close ( const DRV_HANDLE handle )
Summary
Closes an opened-instance of the SD Card driver.
Description
This routine closes an opened-instance of the SD Card driver, invalidating the handle.
Precondition
The DRV_SDSPI_Initialize routine must have been called for the specified SD Card driver instance.
DRV_SDSPI_Open must have been called to obtain a valid opened device handle.
Parameters
Param | Description |
---|---|
handle | A valid open-instance handle, returned from the driver's open routine |
Returns
None
Example
DRV_HANDLE handle; // Returned from DRV_SDSPI_Open DRV_SDSPI_Close (handle);
Remarks
After calling this routine, the handle passed in "handle" must not be used with any of the remaining driver routines. A new handle must be obtained by calling DRV_SDSPI_Open before the caller may use the driver again. This routine may block for other client-level operations to complete.
Note: Usually there is no need for the driver client to verify that the Close operation has completed.