Used to configure the altitude hold mode on a SiRF receiver

SiRF receivers can make use of the last known altitude, or a fixed value to assist in the GPS solution when less than 4 satellites are available. This feature can be implemented automatically, always, or never.

SirfSetNavMode, SIRF_NAVMODE_SET_PARAMS, GPSALTITUDE_HOLD_SOURCES

Types

typedef enum {
  GPS_ALT_HOLD_AUTO = 0,
  GPS_ALT_HOLD_ALWAYS = 1,
  GPS_ALT_HOLD_DISABLE = 2
} GPSALTITUDE_HOLD_MODES;

gpsapi.h

gpsapi.h, Types, See Also