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Commit aaaddfe0 authored by Jaswinder Singh Rajput's avatar Jaswinder Singh Rajput Committed by Linus Torvalds
Browse files

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: default avatarJaswinder 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0ca01763

Documentation/timers/hpet_example.c

+27 −0
Original line number Diff line number Diff line
@@ -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