nrf_socket og nrf_close

Question

When I have opened a nrf socket with nrf_socket to extract GPS data, when the GPS acquisition phase is over, I want to close the socket, since I'm turning the GPS off. calling nrfclose with the socket handle as input parameter,, returns -1, normally an indication that somthing has gone wrong. When I try to reopen the socket again, the open socket command also fails. Please advice on how to proceed.

Tron · Accepted Answer

I found out, first, I needed to set a socket option: 
 nrf_setsockopt(fd,NRF_SOL_GNSS, NRF_SO_GNSS_USE_CASE, &first,sizeof(uint8_t)); 
 where first is 1 if this is the first time the socket is created, otherwise 0 
 THen, before close, i needed to set 
 nrf_setsockopt(fd,NRF_SOL_GNSS,NRF_SO_GNSS_STOP,NULL,0); 
 before I did an nrf_close

nrf_socket og nrf_close

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