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authorJaswinder Singh Rajput <jaswinderlinux@gmail.com>2010-10-26 14:22:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 16:52:11 -0700
commitaaaddfe0b3bb449b8734bf29bbd36141076e5277 (patch)
tree40bb4f75fa62ffb483e1b60a6f70dca9c6abb12a
parent0ca01763a028d0034042a9397534bc1f27848652 (diff)
downloadvexpress-lsk-aaaddfe0b3bb449b8734bf29bbd36141076e5277.tar.gz
Documentation/timers/hpet_example.c: add supporting info for hpet_example
$./hpet_example info /dev/hpet -hpet: executing info hpet_info: hi_irqfreq 0x0 hi_flags 0x0 hi_hpet 0 hi_timer 2 Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Clemens Ladisch <clemens@ladisch.de> Cc: "Venkatesh Pallipadi (Venki)" <venki@google.com> Cc: john stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--Documentation/timers/hpet_example.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c
index 4bfafb7bc4c..9a3e7012c19 100644
--- a/Documentation/timers/hpet_example.c
+++ b/Documentation/timers/hpet_example.c
@@ -97,6 +97,33 @@ hpet_open_close(int argc, const char **argv)
void
hpet_info(int argc, const char **argv)
{
+ struct hpet_info info;
+ int fd;
+
+ if (argc != 1) {
+ fprintf(stderr, "hpet_info: device-name\n");
+ return;
+ }
+
+ fd = open(argv[0], O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "hpet_info: open of %s failed\n", argv[0]);
+ return;
+ }
+
+ if (ioctl(fd, HPET_INFO, &info) < 0) {
+ fprintf(stderr, "hpet_info: failed to get info\n");
+ goto out;
+ }
+
+ fprintf(stderr, "hpet_info: hi_irqfreq 0x%lx hi_flags 0x%lx ",
+ info.hi_ireqfreq, info.hi_flags);
+ fprintf(stderr, "hi_hpet %d hi_timer %d\n",
+ info.hi_hpet, info.hi_timer);
+
+out:
+ close(fd);
+ return;
}
void