#include <nitro/mi.h>
typedef int (*MIDeviceReadFunction)(void *userdata, void *buffer, u32 offset, u32 length);
| userdata | An arbitrary user-defined value specified with MI_InitDevice().This is provided for the sake of convenience in implementing callback functions. |
| buffer | The destination memory to store the loaded data. |
| offset | The start address of the device to which data should be read. |
| length | Data size to load. |
If the function succeeds, it must return the actual amount of data that has been read. If it fails, it must return a negative value.
This is the function prototype indicating the callback format for reading data from the device.
Use this format to implement a device-reading operation and to specify your implementation in MI_InitDevice().
MI_InitDevice, MI_ReadDevice MI_WriteDevice
MIDevice, MIDeviceReadFunction, MIDeviceWriteFunction
2007/05/09 Initial version.
CONFIDENTIAL