Maxim Integrated 73M1822/73M1922 Control Module - Manual (Page 28)

73M1822/73M1922 Control Module User Guide UG_1x22_053
28 Rev. 1.0
6.1.7 M1X22_GET_SAMPLING_FREQ
Description
Return current modem sample rate. The 73M1x22 device can operate at many different sample rates
ranging from 7.2 kHz to 16 kHz. The device defaults to 7.2 kHz operation with a 24.576 MHz crystal upon
startup.
#define M1X22_GET_SAMPLING_FREQ _IOWR(0xA4, 0xA8, unsigned int)
Prototype
int ioctl (
int chan_fd,
int M1X22_GET_SAMPLING_FREQ)
unsigned long param );
Parameters
Data Type Name Description
int chan_fd Channel descriptor.
int M1X22_GET_SAMPLING_FREQ I/O control identifier for this operation.
unsigned long param N/A.
Return Values
Data Type Description
int Sample rate selection as defined in M1X22_SAMPLE_RATE_SELECTION.