From aaaddfe0b3bb449b8734bf29bbd36141076e5277 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Tue, 26 Oct 2010 14:22:14 -0700 Subject: [PATCH] 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 Cc: Clemens Ladisch Cc: "Venkatesh Pallipadi (Venki)" Cc: john stultz Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/timers/hpet_example.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c index 4bfafb7bc4c5..9a3e7012c190 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 -- GitLab