+++ /dev/null
---- a/ntpd/refclock_nmea.c
-+++ b/ntpd/refclock_nmea.c
-@@ -11,6 +11,7 @@
-
- #include <stdio.h>
- #include <ctype.h>
-+#include <sys/ioctl.h>
-
- #include "ntpd.h"
- #include "ntp_io.h"
-@@ -72,6 +73,7 @@ extern int async_write(int, const void *
- #define RANGEGATE 500000 /* range gate (ns) */
-
- #define LENNMEA 75 /* min timecode length */
-+#define LENPPS LINUXPPS_MAX_NAME_LEN
-
- /*
- * Tables to compute the ddd of year form icky dd/mm timecode. Viva la
-@@ -92,6 +94,7 @@ struct nmeaunit {
- pps_params_t pps_params; /* pps parameters */
- pps_info_t pps_info; /* last pps data */
- pps_handle_t handle; /* pps handlebars */
-+ int handle_created; /* pps handle created flag */
- #endif /* HAVE_PPSAPI */
- };
-
-@@ -140,7 +143,12 @@ nmea_start(
- register struct nmeaunit *up;
- struct refclockproc *pp;
- int fd;
-+#ifdef PPS_HAVE_FINDPATH
-+ char id[LENPPS] = "",
-+ path[LENPPS];
-+#endif /* PPS_HAVE_FINDPATH */
- char device[20];
-+ uint bits, mask=~0, outb=0;
-
- /*
- * Open serial port. Use CLK line discipline, if available.
-@@ -225,18 +233,42 @@ nmea_start(
- memcpy((char *)&pp->refid, REFID, 4);
- up->pollcnt = 2;
- gps_send(pp->io.fd,"$PMOTG,RMC,0000*1D\r\n", peer);
-+ gps_send(pp->io.fd,"$PGRMO,,2\r\n", peer);
-+ gps_send(pp->io.fd,"$PGRMO,GPRMC,1\r\n", peer);
-+ gps_send(pp->io.fd,"$PGRMO,,,,,,,,,,,,2\r\n", peer);
-+
-+ mask &= ~TIOCM_RTS;
-+ mask &= ~TIOCM_DTR;
-+ outb |= TIOCM_RTS;
-+ ioctl(fd, TIOCMGET, &bits);
-+ bits &= mask;
-+ bits |= outb;
-+ ioctl(fd, TIOCMSET, &bits);
-
- #ifdef HAVE_PPSAPI
- /*
- * Start the PPSAPI interface if it is there. Default to use
- * the assert edge and do not enable the kernel hardpps.
- */
-+#ifdef PPS_HAVE_FINDPATH
-+ /* Get the PPS source's real name */
-+ time_pps_readlink(device, LENPPS, path, LENPPS);
-+
-+ /* Try to find the source */
-+ fd = time_pps_findpath(path, LENPPS, id, LENPPS);
-+ if (fd < 0) {
-+ msyslog(LOG_ERR, "refclock_nmea: cannot find PPS path \"%s\" in the system", path);
-+ return (0);
-+ }
-+ msyslog(LOG_INFO, "refclock_nmea: found PPS source \"%s\" at id #%d on \"%s\"", path, fd, id);
-+#endif /* PPS_HAVE_FINDPATH */
- if (time_pps_create(fd, &up->handle) < 0) {
-- up->handle = 0;
-+ up->handle_created = 0;
- msyslog(LOG_ERR,
- "refclock_nmea: time_pps_create failed: %m");
- return (1);
- }
-+ up->handle_created = ~0;
- return(nmea_ppsapi(peer, 0, 0));
- #else
- return (1);
-@@ -258,8 +290,10 @@ nmea_shutdown(
- pp = peer->procptr;
- up = (struct nmeaunit *)pp->unitptr;
- #ifdef HAVE_PPSAPI
-- if (up->handle != 0)
-+ if (up->handle_created) {
- time_pps_destroy(up->handle);
-+ up->handle_created = 0;
-+ }
- #endif /* HAVE_PPSAPI */
- io_closeclock(&pp->io);
- free(up);
-@@ -367,7 +401,7 @@ nmea_pps(
- /*
- * Convert the timespec nanoseconds field to ntp l_fp units.
- */
-- if (up->handle == 0)
-+ if (!up->handle_created)
- return (0);
- timeout.tv_sec = 0;
- timeout.tv_nsec = 0;