On Tue, 18 Mar 2008, Udayan Kumar wrote: > Hi Andrew, > > I saw you mail in the maemo mailing list about reading the GPS directly. I am > also trying to do the same but i am still not successful. Just wanted to know > if you have figured out a way to do it. http://maemo.org/api_refs/4.0/gpsbt/group__gpsbt__api.html http://maemo.org/development/documentation/how-tos/3-x/howto_connectivity_guide_bora.html #include <gpsbt.h> #include <errno.h> int main(int argc, char *argv[]) { int t = 0 ; if (argc > 1) sscanf(argv[1],"%d",&t) ; char error_buf[100] ; gpsbt_t ctx = {0} ; /* must clear ctx! */ printf("start GPS..") ; if (gpsbt_start(NULL, 0, 0, 0, error_buf, 100, 0, &ctx) ) { perror("gpsbt_start") ; printf("%s\n",error_buf) ; } if (t>0) { printf ("sleep %d..\n",t) ; sleep(t) ; printf ("stop GPS ..\n") ; if (gpsbt_stop( &ctx) ) perror("gpsbt_stop") ; } } need these libs : gcc -g -o gpsonoff -lgpsbt -lgpsmgr -lgps gpsonoff.c Still tinkering. Seems to leave it running on exit, then I can use cgps. Or start with the program from howto_connectivity_guide instead of cgps (makes a gzipped logfile of position, sped etc.) > > Also in my case /usr/libexec/navicore-*gpsd*-helper is not giving out NMEA > sentences. do we need to do something else before navicore-gpsd-helper starts > emitting out NMEA? Hmm, when I try now it doesn't, either. Not sure. Using gpsd is more elegant, anyway. -- Andrew Daviel, TRIUMF, Canada Tel. +1 (604) 222-7376 (Pacific Time) Network Security Manager
