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about AD7192 IIO driver

Question asked by Sympson on Jan 5, 2013
Latest reply on Jan 9, 2013 by MaryMc

I'm testing this driver for AD7195 with BF544, 2011R1-R3 toolchain, and Kernel 3.5.7-2012R2-pre distro.


The driver compiled as a module.

If I load the module with modprobe, it doesn't return to prompt. But if I break modprobe with Ctrl-C, all of variables are exposed in /sys/bus/iio/devices as described in

Unbuffered mode (read sysfs variables) operation seems work.


Q1) what is the meaning of .irq, and how to configure exactly for AD7195 ?

Q2) how can I change the sampling rate and filter coefficient ?

Q3) Can I use iio_trigger module (GPIO, Timer, etc.) instead of internal trigger (ad7192_dev0) ?


I've found a trivial source code bugs, "ac_excitation_en" are located in AD7192 attributes.