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solettaproject / soletta

Soletta Project is a framework for making IoT devices. With Soletta Project's libraries developers can easily write software for devices that control actuators/sensors and communicate using standard technologies. It enables adding smartness even on the smallest edge devices.
http://solettaproject.org
Apache License 2.0
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Auto load the iio-trig-sysfs module #1442

Open yongli3 opened 8 years ago

yongli3 commented 8 years ago

If the iio-trig-sysfs kernel module is not loaded, the below error message occurs: INF: ./src/lib/io/sol-iio.c:344 check_trigger() No current trigger for iio:device0. Creating a sysfs one. WRN: ./src/lib/io/sol-iio.c:290 create_sysfs_trigger() No 'iio_sysfs_trigger' under '/sys/bus/iio/devices'. Missing 'modprobe iio-trig-sysfs'?

It should be better if the create_sysfs_trigger function can auto load the module

barbieri commented 8 years ago

we link to kmod, so we can add that feature... however it will not be that useful in practice since usually applications won't be executed as root and modprobe needs such functionality.

Maybe it's better to just fix this in the OS by adding it to /etc/modules-load.d/iio-trig-sysfs.conf?

yongli3 commented 8 years ago

@barbieri Thanks for your comment, I noticed there is a file low-speed-spidev.conf in the /etc/modprobe.d, maybe we can use the same solution?

barbieri commented 8 years ago

exactly