I ran into a weird thing.. From above I found the humidity and temperature in the following path:
I have been building and booting from new kernels. I think after doing a fresh install and setting up config.txt to support i2c and the sht4x driver the location changed to;
/sys/bus/i2c/drivers/sht4x/1-0044/hwmon/hwmon1
I had to change my application to use the hwmon1 to get it to work.
Then after some more dinking around with the kernel it moved back to
/sys/bus/i2c/drivers/sht4x/1-0044/hwmon/hwmon2
I had to change my application back.
It seems weird that on different boots the device's data could appear in different paths.
Am I missing some way to find the device data at the same path on any reboot or kernel change?
I don't think I should have to change the code to use different paths on kernel changes.
Thanks
Chris
Code:
$ cd /sys/bus/i2c/drivers/sht4x/1-0044/hwmon/hwmon2$ lsdevice humidity1_input name of_node power subsystem temp1_input uevent update_interval$ cat namesht4x/sys/bus/i2c/drivers/sht4x/1-0044/hwmon/hwmon1
I had to change my application to use the hwmon1 to get it to work.
Then after some more dinking around with the kernel it moved back to
/sys/bus/i2c/drivers/sht4x/1-0044/hwmon/hwmon2
I had to change my application back.
It seems weird that on different boots the device's data could appear in different paths.
Am I missing some way to find the device data at the same path on any reboot or kernel change?
I don't think I should have to change the code to use different paths on kernel changes.
Thanks
Chris
Statistics: Posted by chriskot870 — Wed Sep 04, 2024 6:58 am