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May 2nd, 2012 | syntax:
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/** Parameter structure for the driver I/O operations. */
struct GXSD_IOPARM {
struct GXSD_HANDLE handle; ///< The handle of the device. It will be modified by the opendevice().
unsigned int rwflag; ///< Read/Write flags ( GXSD_IOPARM_READ, GXSD_IOPARM_WRITE ).
int cmd; ///< Command (e.g. GX_CALL_OPENDEVICE, GX_CALL_CLOSEHANDLE).
int len; ///< Length of data in bytes.
void *ptr; ///< Pointer to the data.
// struct GX_DEVICE_INFOA devinfo;
int status; ///< Status information (error code or 0).
};