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how to access the external modules (SPI and I2C) in linux user space

Question asked by Srinivasa Rao Poram on Jul 29, 2015
Latest reply on Jul 30, 2015 by igorpadykov


We have got Wandboard dual (IMX6DL processor). We have connected two external modules 1. Altimeter (MS5803-14BA) and 2. IMU (MPU-9250) to the external connectors available in wandboard (JP4 (SPI) and JP2(I2C)).


for i2c module, we have installed i2c-tools in Ubuntu. even after issuing the command $i2cdetect -l.  i2c module is not being shown.


How can we access these module in the ubuntu user space (command line). is drivers /library files of those modules to be installed or not???? are there any steps or guidelines/procedure  to be followed.