Re: [Qemu-devel] Usage of Temperature Sensor (TMP105)

[Alex Horn]

Dear Andrzej,

> Most likely the function has never been in use.  It is there for
> completeness of the API.

I've submitted a patch to create a header file for the TMP105 API [1].
Having this API makes sense because the probe is compatible with
several others (as documented in the patch, see also [2]). In
addition, we would like to reuse the temperature hardware model in an
experiment. The new tmp105.h file would facilitate this.

With best regards,
Alex

[1] http://lists.nongnu.org/archive/html/qemu-devel/2012-12/msg00363.html
[2] https://github.com/torvalds/linux/blob/master/drivers/hwmon/lm75.c#L37

On 3 December 2012 22:43, andrzej zaborowski <address@hidden> wrote:
> Hi Alex,
>
> On 1 December 2012 20:39, Alex Horn <address@hidden> wrote:
>> Hello all,
>>
>> As I have been browsing through QEMU's source code, I've noticed a
>> hardware model for a temperature sensor called TMP105. This model
>> implements the function tmp105_set(I2CSlave *i2c, int temp) declared
>> in i2c.h [0, 1].
>>
>> Surprisingly, however, I cannot find any code which calls this setter
>> function despite the fact that "CONFIG_TMP105=y" in at least one
>> target (e.g. [2]).
>>
>> I am keen to learn who uses this virtual device, i.e. who calls
>> tmp105_set(). This may answer my question if there exists a
>> "third-party" model which could simulate temperature changes in the
>> chip.
>
> Most likely the function has never been in use.  It is there for
> completeness of the API.  I was considering using it as a qemu monitor
> command if there is ever need to test the guest under changing
> temperature (e.g. some UI elements showing temperature changes).
>
> Cheers