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+Give access to GPS devices more or less automatically.
+
+Basic idea:
+
+  1. Run gpsd as a system service as "nobody.gps" and gpsd_t.
+  2. Communicate with this gpsd
+      a) via /var/run/gpsd.sock for adding/removing devices
+      b) via TCP port 2947 for getting position fixes
+  3. Add database of GPS devices to HAL
+  4. Add policy and scripts to HAL
+  5. Give each GPS device file a "chcon gps_device_t",
+     and group read/write permissions for group "gps"
+     via scripts called by HAL.
+
+