Hi all, hopefully this is the right place to post this. I'm having some trouble with configuring a sysfs trigger for the mpu6050. I am running this on a raspberrypi 3b on yocto kirkstone. The problem is whenever I try to write to the current_trigger file, I get this error: "sh: write error: Invalid argument". Here are the steps I take: cd /sys/bus/iio/devices/iio_sysfs_trigger echo 0 > add_trigger cd /sys/bus/iio/devices/trigger1 #trigger0 exists by default, so it creates trigger1 cat name #gives sysfstrig0, as expected cd /sys/bus/iio/devices/iio:device0 echo sysfstrig0 > trigger/current_trigger #results in "sh: write error: Invalid argument" A couple of observations. Writing the default trigger, "mpu6050-dev0" to the file works. Anything else besides "mpu6050-dev0" and "sysfstrig0" doesn't result in any error, but the contents of the file is blank. Since, writing "sysfstrig0" to it results in an error, it must mean that it is registered to the iio subsystem, but that something else is perhaps configured wrongly? This is my first time using IIO, so happy to get any pointers on how to debug this. Thank you in advance. - isch
