--- trunk/src/gps.h	2009/08/12 19:18:53	53
+++ trunk/src/gps.h	2009/10/29 13:59:16	149
@@ -149,6 +149,13 @@
   int *used;
 } gps_sat_t;
 
+typedef void (*gps_cb)(struct gps_state *, gpointer data);
+#define	GPS_CB(f) ((gps_cb)(f))
+
+typedef struct {
+  gps_cb cb;
+  gpointer data;
+} gps_cb_t;
 
 typedef struct gps_state {
 #ifndef ENABLE_LIBLOCATION
@@ -171,6 +178,9 @@
   double heading, eph;
   gps_sat_t sats;
 #endif
+
+  GSList *cb;
+
 } gps_state_t;
 
 void gps_init(appdata_t *appdata);
@@ -180,5 +190,7 @@
 float gps_get_eph(appdata_t *appdata);
 gps_sat_t *gps_get_sats(appdata_t *appdata);
 
+void *gps_register_callback(appdata_t *appdata, gps_cb cb, gpointer data);
+void gps_unregister_callback(appdata_t *appdata, void *cb);
 
 #endif // GPS_H