[PATCH] HPET: Supporting info for hpet_example

[PATCH] HPET: Supporting info for hpet_example

[Jaswinder Singh Rajput]

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Hello,

I am attaching the patch and also uploaded on :
http://userweb.kernel.org/~jaswinder/patches/0001-HPET-Supporting-info-for-hpet_example.patch

Thanks,
--
Jaswinder Singh.

[-- Attachment #2: 0001-HPET-Supporting-info-for-hpet_example.patch --]
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From 92f4d790f0d1c1382c374719e992a689bc06d8fc Mon Sep 17 00:00:00 2001
From: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Date: Sat, 4 Sep 2010 13:59:57 +0530
Subject: [PATCH] HPET: 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>
---
 Documentation/timers/hpet_example.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c
index 4bfafb7..9a3e701 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
-- 
1.7.1.1

Re: [PATCH] HPET: Supporting info for hpet_example

[Clemens Ladisch]

Jaswinder Singh Rajput wrote:
> $./hpet_example info /dev/hpet
> -hpet: executing info
> hpet_info: hi_irqfreq 0x0 hi_flags 0x0 hi_hpet 0 hi_timer 2

The interrupt frequency is always zero before the application has set
it, so it doesn't make much sense to show it in this function.


Regards,
Clemens