From owner-freebsd-stable  Thu Mar  8 14:26:54 2001
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From: Lyndon Nerenberg <lyndon@messagingdirect.com>
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To: Andrew Hesford <ajh3@chmod.ath.cx>
Cc: questions@FreeBSD.ORG, stable@FreeBSD.ORG
Subject: Re: ABIT KT7 and temp monitoring 
In-Reply-To: Message from Andrew Hesford <ajh3@chmod.ath.cx> 
   of "Thu, 08 Mar 2001 16:12:54 CST." <20010308161254.A12645@cec.wustl.edu> 
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Date: Thu, 08 Mar 2001 15:26:36 -0700
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> man 4 smb

> The problem is the smb kernel device supports a limited number of chips.

Two problems:

1) /dev/smb* are exclusive access -- only one process can hold them open
   at a time. (As of a couple of months ago in -stable at least)

2) You still need knowledge of the chipsets. This isn't an abstracted
   interface.

What would work better is:

% cat /dev/mbmon
cpu[0] temp=73 fan=180 vcc=2.30 ...
cpu[1] temp=76 fan=167 vcc=2.32 ...
motherboard temp=38		<-- generic motherboard sensor values
fan[0]=313			<-- rpm for non-cpu fans
fan[1]=-1
    .
    .
    .
%

I.e., something suitable for direct display, and which can easily
be ripped apart with awk to extract specific values. It should also
be possible to ioctl the device in a manner similar to /dev/apm,
although defining the variables and data types for the ioctl
interface might be a bit of a pain, since the variables returned
by the different chips are, well, variable.

--lyndon

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