Sensoray 2253 Linux - Manual (Page 34)

S2253P_VIDIOC_G_GPS_GGA
int ioctl(int fd, int request, struct s2253p_gps_msg *data);
struct s2253p_gps_msg {
char str[80];
};
Read the most recent GGA message from the GPS. GPS must be enabled.
Requires S2253P system.
S2253P_VIDIOC_G_GPS_GSA
int ioctl(int fd, int request, struct s2253p_gps_msg *data);
struct s2253p_gps_msg {
char str[80];
};
Read the most recent GSA message from the GPS. GPS must be enabled.
Requires S2253P system.
S2253P_VIDIOC_G_GPS_GSV
int ioctl(int fd, int request, struct s2253p_gps_msg *data);
struct s2253p_gps_msg {
char str[80];
};
Read the most recent GSV message from the GPS. GPS must be enabled.
Requires S2253P system.
S2253P_VIDIOC_G_GPS_RMC
int ioctl(int fd, int request, struct s2253p_gps_msg *data);
struct s2253p_gps_msg {
char str[80];
};
Read the most recent RMC message from the GPS. GPS must be enabled.
Requires S2253P system.
S2253P_VIDIOC_S_ENC_ASYNCEN
int ioctl(int fd, int request, struct s2253p_encoder *data);
struct s2253p_encoder {
__u8 chan_mask; // mask of channels to change
__u8 enable_mask; // mask of channels to enable async
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