Hi all, A friend and I were attempting to get a LSM303DLHC breakout board hooked up to the expansion header on the RaspPi yesterday - it was him doing the work and me offering suggestions from afar (unfortunately the blind leading the blind)... Anyhow 'we' got reasonably far and could read raw value and trigger the buffer via the 'iio-sysfs-trig'. The problem came when we wanted the device to trigger itself at the set sample frequency. We infer that we need to connect the DRDY signal to a CPU interrupt line, but can't see how we tell the ST iio driver which one. I did find this is the source: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/iio/common/st_sensors/st_sensors_trigger.c?id=refs/tags/v4.1-rc8#n21 Which shows that the 'sdata->get_irq_data_ready()' can be pre-defined in the data structure passed on driver init. But how can we do that from the command line, or even a little script/app once the kernel is up and running? The story of our attempt is documented here: https://groups.google.com/forum/?hl=en#!topic/richards-tech-user-forum/BjQpWjTmims Any suggestions on how we can succeed? Many thanks, Simon. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
