dht11 vs iio-hwmon
Dag B <[email protected]> Wed, 25 May 2022 16:36:23 +0000
| Newsgroups | org.kernel.vger.lm-sensors |
|---|---|
| Message-ID | <[email protected]> |
Hi. I have managed to make use of the dht11 driver and can get data from my sensor quite reliably. I want to be able to read this sensor via lm-sensors, and was hoping to employ the iio-hwmon bridge for this purpose. Sadly, I do not get any nodes in the /sys/class/hwmon/ directory for the dht11 sensor. Do iio-drivers (like dht11) have to be written with this bridge in mind, in order to get the hwmon entries? Or am I just missing a touch of magic somewhere? I see that the dht11 device-tree overlay doesn't have any reference to iio-hwmon, like some other drivers do. root@rpi2:/boot# lsmod | egrep 'iio|hw|dht' dht11 16384 0 iio_hwmon 16384 0 raspberrypi_hwmon 16384 0 industrialio 81920 2 iio_hwmon,dht11 root@rpi2:/boot# cat /sys/bus/iio/devices/iio\:device0/in_temp_input 19400 root@rpi2:/boot# ls -l /sys/class/hwmon/ total 0 lrwxrwxrwx 1 root root 0 May 25 08:59 hwmon0 -> ../../devices/virtual/thermal/thermal_zone0/hwmon0 lrwxrwxrwx 1 root root 0 May 25 08:59 hwmon1 -> ../../devices/platform/soc/soc:firmware/raspberrypi-hwmon/hwmon/hwmon1 Thanks, Dag B.