Messages in this thread | | | Subject | Re: [PATCH] powernv: Add OCC driver to mmap sensor area | From | Benjamin Herrenschmidt <> | Date | Mon, 02 Oct 2017 10:35:02 +0200 |
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On Mon, 2017-10-02 at 14:14 +1100, Stewart Smith wrote: > Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> writes: > > This driver provides interface to mmap the OCC sensor area > > to userspace to parse and read OCC inband sensors. > > Why? > > Is this for debug? If so, the existing exports interface should be used. > > If there's actual sensors, we already have two ways of exposing sensors > to Linux: the OPAL_SENSOR API and the IMC API. > > Why this method and not use the existing ones?
More than that, a sensor should be exposed to userspace via hwmon, not some random direct userspace map.
Ben.
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