All of lore.kernel.org
 help / color / mirror / Atom feed
From: "George Spelvin" <linux@horizon.com>
To: jdelvare@suse.com
Cc: linux@horizon.com, linux-kernel@vger.kernel.org,
	lm-sensors@lm-sensors.org, lpapp@kde.org
Subject: Re: [lm-sensors] Tachometer speed returned rather than absolute fan speed?
Date: Mon, 10 Mar 2014 07:11:40 +0000	[thread overview]
Message-ID: <20140310071140.19969.qmail@ns.horizon.com> (raw)
In-Reply-To: <20140307162524.6abd34be@endymion.delvare>
In-Reply-To: <CAOMwXhPXPN+21N11cHBENvw0QZ1qPvo9GTbM9V2SwDmgBQZssw@mail.gmail.com>

> What did you think "tachometer speed" was, if not the fan speed? Does
> the max6650 driver not return correct fan speeds for you?

Given that most PC fans produce two pulses per rotation, I assumed it was
the frequency of the tachometer signal, which is twice the fan RPM.

_______________________________________________
lm-sensors mailing list
lm-sensors@lm-sensors.org
http://lists.lm-sensors.org/mailman/listinfo/lm-sensors

WARNING: multiple messages have this Message-ID (diff)
From: "George Spelvin" <linux@horizon.com>
To: jdelvare@suse.com
Cc: linux@horizon.com, linux-kernel@vger.kernel.org,
	lm-sensors@lm-sensors.org, lpapp@kde.org
Subject: Re: [lm-sensors] Tachometer speed returned rather than absolute fan speed?
Date: 10 Mar 2014 03:11:40 -0400	[thread overview]
Message-ID: <20140310071140.19969.qmail@ns.horizon.com> (raw)
In-Reply-To: <20140307162524.6abd34be@endymion.delvare>

> What did you think "tachometer speed" was, if not the fan speed? Does
> the max6650 driver not return correct fan speeds for you?

Given that most PC fans produce two pulses per rotation, I assumed it was
the frequency of the tachometer signal, which is twice the fan RPM.

  parent reply	other threads:[~2014-03-10  7:11 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-07 14:48 [lm-sensors] Tachometer speed returned rather than absolute fan speed? Laszlo Papp
2014-03-07 14:48 ` Laszlo Papp
2014-03-07 15:08 ` [lm-sensors] " Laszlo Papp
2014-03-07 15:08   ` Laszlo Papp
2014-03-07 15:25 ` [lm-sensors] " Jean Delvare
2014-03-07 15:25   ` Jean Delvare
2014-03-07 15:31   ` [lm-sensors] " Laszlo Papp
2014-03-07 15:31     ` Laszlo Papp
2014-03-07 15:37     ` [lm-sensors] " Jean Delvare
2014-03-07 15:37       ` Jean Delvare
2014-03-07 15:47       ` [lm-sensors] " Laszlo Papp
2014-03-07 15:47         ` Laszlo Papp
2014-03-07 18:17         ` [lm-sensors] " Guenter Roeck
2014-03-07 18:17           ` Guenter Roeck
2014-03-08 23:50           ` [lm-sensors] " Guenter Roeck
2014-03-08 23:50             ` Guenter Roeck
2014-03-09  6:36             ` Laszlo Papp
2014-03-09  6:36               ` Laszlo Papp
2014-03-09  8:04               ` Guenter Roeck
2014-03-09  8:04                 ` Guenter Roeck
2014-03-09 12:44                 ` Laszlo Papp
2014-03-09 12:44                   ` Laszlo Papp
2014-03-10  9:59                 ` Laszlo Papp
2014-03-10  9:59                   ` Laszlo Papp
2014-03-10 13:26                   ` Guenter Roeck
2014-03-10 13:26                     ` Guenter Roeck
2014-03-10 13:50                     ` Laszlo Papp
2014-03-10 13:50                       ` Laszlo Papp
2014-03-10 15:11                       ` Guenter Roeck
2014-03-10 15:11                         ` Guenter Roeck
2014-03-10 18:00                         ` Laszlo Papp
2014-03-10 18:00                           ` Laszlo Papp
2014-04-08  9:19             ` Pavel Machek
2014-04-08  9:19               ` Pavel Machek
2014-03-10  7:11 ` George Spelvin [this message]
2014-03-10  7:11   ` George Spelvin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20140310071140.19969.qmail@ns.horizon.com \
    --to=linux@horizon.com \
    --cc=jdelvare@suse.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lm-sensors@lm-sensors.org \
    --cc=lpapp@kde.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.