Using Linux system (hwmon) driver for user application

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I want to use a Raspberry Pi compute module as part of an embedded control system. There are several sensors like multiple INA226 current sensors, a DS3231 RTC, two SI7050 temperature and LPS331AP pressure sensors, and an MPU-6050 IMU.



All of these devices have default Linux drivers. So I am wondering if I can't just use them? If I look for Raspberry Pi drivers for these devices I find many librarys running in the user space. Why would anyone write a driver in the user space if tested drivers are available in the kernel?



Is it a problem that some drivers are hwmon drivers? For example the temperature and current sensor and the fan controller. I would "misuse" them for other purposes (measuring data not related to the actual Raspberry Pi core but in a different part of the system).



Thanks for your input!




drivers raspberry-pi




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    up vote
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    down vote

    favorite












    I want to use a Raspberry Pi compute module as part of an embedded control system. There are several sensors like multiple INA226 current sensors, a DS3231 RTC, two SI7050 temperature and LPS331AP pressure sensors, and an MPU-6050 IMU.



    All of these devices have default Linux drivers. So I am wondering if I can't just use them? If I look for Raspberry Pi drivers for these devices I find many librarys running in the user space. Why would anyone write a driver in the user space if tested drivers are available in the kernel?



    Is it a problem that some drivers are hwmon drivers? For example the temperature and current sensor and the fan controller. I would "misuse" them for other purposes (measuring data not related to the actual Raspberry Pi core but in a different part of the system).



    Thanks for your input!




    drivers raspberry-pi




    share|improve this question






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I want to use a Raspberry Pi compute module as part of an embedded control system. There are several sensors like multiple INA226 current sensors, a DS3231 RTC, two SI7050 temperature and LPS331AP pressure sensors, and an MPU-6050 IMU.



      All of these devices have default Linux drivers. So I am wondering if I can't just use them? If I look for Raspberry Pi drivers for these devices I find many librarys running in the user space. Why would anyone write a driver in the user space if tested drivers are available in the kernel?



      Is it a problem that some drivers are hwmon drivers? For example the temperature and current sensor and the fan controller. I would "misuse" them for other purposes (measuring data not related to the actual Raspberry Pi core but in a different part of the system).



      Thanks for your input!




      drivers raspberry-pi




      share|improve this question












      I want to use a Raspberry Pi compute module as part of an embedded control system. There are several sensors like multiple INA226 current sensors, a DS3231 RTC, two SI7050 temperature and LPS331AP pressure sensors, and an MPU-6050 IMU.



      All of these devices have default Linux drivers. So I am wondering if I can't just use them? If I look for Raspberry Pi drivers for these devices I find many librarys running in the user space. Why would anyone write a driver in the user space if tested drivers are available in the kernel?



      Is it a problem that some drivers are hwmon drivers? For example the temperature and current sensor and the fan controller. I would "misuse" them for other purposes (measuring data not related to the actual Raspberry Pi core but in a different part of the system).



      Thanks for your input!





      drivers raspberry-pi





      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 1 at 7:37









      Jan B.

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