Maxim Integrated 73M1822/73M1922 Control Module - Manual (Page 44)

73M1822/73M1922 Control Module User Guide UG_1x22_053
44 Rev. 1.0
6.4.2 M1X22_DISABLE_CALLER_ID
Description
Disables the automatic Caller ID processing. By default the driver will start Caller ID mode with an on
hook transition. This can be disabled by upper layer application using this service.
#define M1X22_DISABLE_CALLER_ID _IOWR(0xA4, 0xF2, unsigned int)
Prototype
int ioctl (
int chan_fd,
int M1X22_DISABLE_CALLER_ID,
unsigned long param );
Parameters
Data Type Name Description
int chan_fd Channel descriptor.
int M1X22_DISABLE_CALLER_ID I/O control identifier for this operation.
unsigned long param N/A.
Return Values
Data Type Description
int Always returns 0.
6.4.3 M1X22_ENTER_CID_MODE
Description
Manually enters Caller ID mode regardless of the state of the automatic CID service.
#define M1X22_ENTER_CID_MODE _IOWR(0xA4, 0xF2, unsigned int)
Prototype
int ioctl (
int chan_fd,
int M1X22_ENTER_CID_MODE,
unsigned long param );
Parameters
Data Type Name Description
int chan_fd Channel descriptor.
int M1X22_ENTER_CID_MODE I/O control identifier for this operation.
unsigned long param N/A.
Return Values
Data Type Description
int 0 – Successful.
-1 – If modem channel is not on-hook.