Maxim-integrated 73M1866B/73M1966B Reference Driver Manual de usuario Pagina 24

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73M1866B/73M1966B Reference Driver User Guide UG_1x66B_015
24 Rev. 2.7
6.1.1 M1966_CH_INIT
Description
Performs 73M1x66 channel initialization. This includes initialize all default registers and country specific
threshold parameters. This IOCTL requires the country code listed in M1966_COUNTRY_CODE as input.
The FXO channel will be initialized according to the default setting parameter of the input country code.
The default setting parameter can be found in the 73m1966_cntry_tbl.c file. See also
M1966_GET_COUNTRY_CONFIG and M1966_SET_COUNTRY_CONFIG for run-time modification of country
default setting.
#define M1966_CH_INIT _IOWR(0xA4,0xC8,unsigned int)
Prototype
int ioctl (
int chan_fd,
int M1966_CH_INIT,
unsigned long param );
Parameters
Data Type Name Description
chan_fd
Channel descriptor.
M1966_CH_INIT
I/O control identifier for this operation.
unsigned long param
Country code as listed in
M1966_COUNTRY_CODE
.
Return Values
Data Type Description
int
-1 – Failed to obtain PLL_LOCKED on device.
0 – Successful.
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