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From: DOSProfi@web.de (Enrico Bartky)
To: lm-sensors@vger.kernel.org
Subject: PC87591x
Date: Thu, 19 May 2005 06:25:45 +0000	[thread overview]
Message-ID: <42418B75.3080707@web.de> (raw)

Hello,

I read (and try to understand) the PC87591x spec. 
(http://www.national.com/ds.cgi/PC/PC87591E.pdf). The problem is, the 
temperature is only readable through the whole pc87591x memory. And in 
some versions the ADC controller for temp. readings is disabled. To 
enable this, it is neccessary to set a bit.

But how to read/write the pc87591x memory?
It is possible to map the memory to a address of the bios memory ( 
0xFFE0 0000 - 0xFFFF FFFF ) through the LDN 0x0F and the register 0xF4.

If the mapping is activated, how to read the address 0xFFE0 0000 ???? 
cat /proc/iomem says 0xFF80 0000 - 0xFFFF FFFF is reserved. I also tried 
it with ioremap.

Is anybody working on this? Or can help?

EnricoB

             reply	other threads:[~2005-05-19  6:25 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-19  6:25 Enrico Bartky [this message]
2005-05-19  6:25 ` PC87591x Rudolf Marek
2005-12-22 17:38 ` [lm-sensors] PC87591x Enrico Bartky
2005-12-22 21:25 ` Mark Studebaker

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