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Date:      Wed, 14 Sep 2016 04:07:35 +0000
From:      Alexey Dokuchaev <danfe@FreeBSD.org>
To:        Michael Gmelin <freebsdusb@bindone.de>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: Patches to acpi_hp
Message-ID:  <20160914040735.GA18792@FreeBSD.org>
In-Reply-To: <4A4A4C19.6000407@bindone.de>
References:  <4A49FD78.90405@bindone.de> <25cb30906300503g4e11290xd18818238c5a4bb3@mail.gmail.com> <4A4A01F3.1080004@bindone.de> <25cb30906300525j650a601cr77f0740f56168e53@mail.gmail.com> <4A4A05FA.8000305@bindone.de> <25cb30906300537y5fae18afo7c34d5fda170fff3@mail.gmail.com> <25cb30906300554u4ef7e638naa0dfe51bac3e83f@mail.gmail.com> <4A4A0EF6.1080800@bindone.de> <25cb30906300943k4871313ao69595498c1758730@mail.gmail.com> <4A4A4C19.6000407@bindone.de>

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On Tue, Jun 30, 2009 at 07:32:09PM +0200, Michael Gmelin wrote:
> Can you send me the output you get when kldloading acpi_hp + the output
> of cat /dev/wmistat0.  It's possible that your laptop doesn't support CMI.
> ...
> it seems like your model doesn't support this feature, sorry.

Hi Michael,

What exactly indicates proper CMI support?  I have a problem with acpi_hp(4)
on ProBook 645 G1 (infamous ``driver bug: Unable to set devclass (class: ppc
devname: (unknown))'' error), but it looks like all GUIDs listed inside the
`acpi_hp.c' are there:

  $ cat /dev/wmistat0 | egrep '95F24279|5FB7F034|2D114B49'
  {5FB7F034-2C63-45E9-BE91-3D44E2C707E4}   1 NO   WMAA NO  NO    AA
  {95F24279-4D7B-4334-9387-ACCDC67EF61C}   1 NO   NO   NO  0x80+ -
  {2D114B49-2DFB-4130-B8FE-4A3C09E75133} 247 NO   NO   NO  NO    BC

Despite that "driver bug" message, /dev/hpcmi gets created, but reading it
yields just a bunch (247 of them, like the number above) of blank lines, and
issuing various sysctl(8) calls also does not work properly.

  $ sysctl dev.acpi_hp.0.hdd_temperature
  dev.acpi_hp.0.hdd_temperature: 4		<-- ??? what units are these?
  # sysctl dev.acpi_hp.0.wlan_enabled=1
  dev.acpi_hp.0.wlan_enabled: 0
  sysctl: dev.acpi_hp.0.wlan_enabled=1: Interrupted system call

./danfe



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