User Manual

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
.