Maxim Integrated 73M1866B/73M1966B FXOAPI - Manual (Page 42)

73M1866B/73M1966B FXOAPI User Guide UG_1x66B_046
42 Rev. 2.1
3.1 M1x66_HANDLE_t
Description
The device or channel handle is a pointer to a device or channel control data structure where information
pertaining to device or channel is being kept. This control data structure is created when the device or
channel is opened and is used by the API internal subsystem to indentify the device or channel until it is
closed.
Prototype
/*
**************************************************************************
** Device/Channel Control block
*************************************************************************/
typedef struct {
int chanNum;
int fd;
void (*eventCallback)(M1x66_EVENT_ID,
unsigned int,
unsigned int,
unsigned int,
unsigned int,
unsigned int);
int initialized;
}
m1966_DevChanHandle;
/* Device or channel handle */
typedef m1966_DevChanHandle *M1x66_HANDLE_t;
Parameters
Data Type Name Description
int chanNum Device or channel number.
int fd Device or channel corresponding file descriptor.
void (*eventCallback)() An event callback function pointer, used only for device.
int Initialized Initialization flag.