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-rw-r--r--gps.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/gps.h b/gps.h
index 9e61ac44..31df569f 100644
--- a/gps.h
+++ b/gps.h
@@ -50,6 +50,7 @@ extern "C" {
* Add gps_fix_t datum string, and qErr
* enlarge subtype to hold ZED-F9 string
* MAXCHANNELS bumped from 120 to 140
+ * Try to make PRN be NMEA 2.x-4.0 compliant, not 4.10 or u-blox
*/
#define GPSD_API_MAJOR_VERSION 8 /* bump on incompatible changes */
#define GPSD_API_MINOR_VERSION 0 /* bump on compatible changes */
@@ -1840,7 +1841,7 @@ struct satellite_t {
* sadly there is no standard, but many different implementations of
* how to code PRN
*/
- short PRN;
+ short PRN; /* PRN numbering per NMEA 2.x to 4.0, not 4.10 */
short elevation; /* elevation of satellite, -90 to 90 deg, -91 for n/a */
short azimuth; /* azimuth, 0 to 359 deg, -1 for n/a */
/* gnssid:svid:sigid, as defined by u-blox 8/9: