Maxim Integrated 73M1866B/73M1966B Infineon TAPI High-Level Driver - Manual (Page 20)

73M1866B/73M1966B TAPI High-Level Driver User Guide UG_1x66B_021
20 Rev. 2.2
3.17 IFX_TAPI_FXO_BAT_ GET
Description
Receives battery status from the FXO interface.
#define IFX_TAPI_FXO_BAT_GET _IOW(IFX_TAPI_IOC_MAGIC, 0xDD, int)
Prototype
int ioctl (
int chan_fd,
int IFX_TAPI_FXO_BAT_GET,
unsigned long param );
Parameters
Data Type Name Description
int chan_fd Channel descriptor.
int IFX_TAPI_FXO_BAT_GET I/O control identifier for this operation.
unsigned long param Points to IFX_boolean_t type,
indicating the battery status
• IFX_TRUE if the FXO port is
disconnected from the PSTN (battery
absent).
• IFX_FALSE if the FXO port is
connected to the PSTN (battery
present).
Return Values
Data Type Description
int IFX_ERROR – Failed to read battery status.
IFX_SUCCESS – Successful.