The patch titled
PPS: example program to enable PPS support on serial ports
has been added to the -mm tree. Its filename is
pps-example-program-to-enable-pps-support-on-serial-ports.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: PPS: example program to enable PPS support on serial ports
From: Rodolfo Giometti <giometti@xxxxxxxx>
Signed-off-by: Rodolfo Giometti <giometti@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/pps/Makefile | 2 -
Documentation/pps/ppsctl.c | 62 +++++++++++++++++++++++++++++++++++
2 files changed, 63 insertions(+), 1 deletion(-)
diff -puN Documentation/pps/Makefile~pps-example-program-to-enable-pps-support-on-serial-ports Documentation/pps/Makefile
--- a/Documentation/pps/Makefile~pps-example-program-to-enable-pps-support-on-serial-ports
+++ a/Documentation/pps/Makefile
@@ -1,4 +1,4 @@
-TARGETS = ppstest
+TARGETS = ppstest ppsctl
CFLAGS += -Wall -O2 -D_GNU_SOURCE
CFLAGS += -I .
diff -puN /dev/null Documentation/pps/ppsctl.c
--- /dev/null
+++ a/Documentation/pps/ppsctl.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <linux/serial.h>
+
+void usage(char *name)
+{
+ fprintf(stderr, "usage: %s <ttyS> [enable|disable]\n", name);
+
+ exit(EXIT_FAILURE);
+}
+
+int main(int argc, char *argv[])
+{
+ int fd;
+ int ret;
+ struct serial_struct ss;
+
+ if (argc < 2)
+ usage(argv[0]);
+
+ fd = open(argv[1], O_RDWR);
+ if (fd < 0) {
+ perror("open");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = ioctl(fd, TIOCGSERIAL, &ss);
+ if (ret < 0) {
+ perror("ioctl(TIOCGSERIAL)");
+ exit(EXIT_FAILURE);
+ }
+
+ if (argc < 3) { /* just read PPS status */
+ printf("PPS is %sabled\n",
+ ss.flags & ASYNC_HARDPPS_CD ? "en" : "dis");
+ exit(EXIT_SUCCESS);
+ }
+
+ if (argv[2][0] == 'e' || argv[2][0] == '1')
+ ss.flags |= ASYNC_HARDPPS_CD;
+ else if (argv[2][0] == 'd' || argv[2][0] == '0')
+ ss.flags &= ~ASYNC_HARDPPS_CD;
+ else {
+ fprintf(stderr, "invalid state argument \"%s\"\n", argv[2]);
+ exit(EXIT_FAILURE);
+ }
+
+ ret = ioctl(fd, TIOCSSERIAL, &ss);
+ if (ret < 0) {
+ perror("ioctl(TIOCSSERIAL)");
+ exit(EXIT_FAILURE);
+ }
+
+ return 0;
+}
_
Patches currently in -mm which might be from giometti@xxxxxxxx are
linuxpps-core-support.patch
pps-userland-header-file-for-pps-api.patch
pps-documentation-programs-and-examples.patch
pps-linuxpps-clients-support.patch
pps-serial-clients-support.patch
pps-example-program-to-enable-pps-support-on-serial-ports.patch
pps-parallel-port-clients-support.patch
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