linux-kernel - Re: Reading temperature from another Kernel modules

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Message-ID: <4CC98A3C.5010903@ladisch.de>
Date:	Thu, 28 Oct 2010 16:35:40 +0200
From:	Clemens Ladisch <clemens@...isch.de>
To:	Matthias Dunda <user254@...17.greatnet.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Reading temperature from another Kernel modules

Matthias Dunda wrote:
> BUT: how do I get the temp? Most of the internal functions require a
> struct device or a struct i2c_client, which - I assume - are perfectly
> provided by the kernel when going the way over the proc file system.
> 
> I tried to statically save such a struct during the probing process
> (this is the above my_local_client), but this works neither. When I
> use the saved struct to call jc42_read_value, I always get a
> temperature value which is not correct at all.

Is that saved pointer actually the same?  (Put printk()s in both your
function and some sysfs-called function.)


Regards,
Clemens
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