public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Guenter Roeck <guenter.roeck@ericsson.com>
To: lm-sensors@lm-sensors.org
Cc: linux-kernel@vger.kernel.org
Subject: Adding critical/fault limits to hwmon sysfs API
Date: Sun, 20 Jun 2010 09:37:59 -0700	[thread overview]
Message-ID: <20100620163759.GA7077@ericsson.com> (raw)

Hi,

the current hwmon sysfs API does not specify critical or fault limits for voltage
and current readings.

Many recent power controller/monitoring chips have support for such limits in addition
to alarm limits. Typical action, when a the critical or fault limit is reached,
may be a board reset or power shutdown, or to report the fault condition.

Examples for chips supporting critical/fault limits are SMM665 and variants as well
as many PMBus devices, such as MAX8688, MAX16064, LTC2978, and others.

I think it would make sense to add critical/fault limits to the hwmon sysfs API,
to be able to report those limits if supported by a chip.

Any thoughts on this ?

Thanks,
Guenter


             reply	other threads:[~2010-06-20 16:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-20 16:37 Guenter Roeck [this message]
2010-06-23 12:43 ` [lm-sensors] Adding critical/fault limits to hwmon sysfs API Jean Delvare
2010-06-23 13:31   ` Guenter Roeck
2010-06-23 14:29     ` Jean Delvare
2010-06-23 15:03       ` Guenter Roeck
2010-06-23 16:34         ` Jean Delvare
2010-06-23 17:21           ` Guenter Roeck
2010-06-24  0:09   ` Mark Brown
2010-06-24  6:34     ` Jean Delvare

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=20100620163759.GA7077@ericsson.com \
    --to=guenter.roeck@ericsson.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lm-sensors@lm-sensors.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox