Messages in this thread | | | Date | Thu, 09 Sep 2010 13:43:20 +0100 | From | Jonathan Cameron <> | Subject | Re: Voltage/current/sensor monitoring interface and Wiegand |
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.... > > How are voltage *monitors* normally written? (note, not voltage > *regulators*... this thing does not alter the voltage rails.) I tried > to make sense of lm-sensors, but that seems very ad-hoc (maybe I missed > some document that explains it) to me. It's hard to be clear on what is > the *right* way to report a voltage or current reading to userspace. typically hwmon, documentation is under /Documentation/hwmon/sysfs-interface. > > For the temperature and light sensing... temperature sensors certainly > exist in the PC world, and maybe I should look closely at how they are > normally done, but I wasn't sure about the light sensor. I was thinking > maybe an input device with some new absolute value reported? Light sensing options are currently either /misc or /staging/iio/light.
There are several different interfaces unfortunately. IIO can work with a bridge (via uinput) to generate input events is that is what you need. The interface is still a bit unstable, though it is getting cleaned up at the moment. > > Likewise with the PIR sensor, I notice there's a "gesture" input > (MSC_GESTURE)... seems appropriate? Or am I barking up the wrong tree? Does it look like a button (e.g. is it a straight on off device with no control parameters etc)? Dmitry, what would you put this as and would this be acceptable in input?
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