![]() In general, device_get_binding() returns NULL if the device Individual devices can fail to initialize, which is almost definitely The device driver can be compiled into your binary correctly, but the There is a difference between a device and a device Load the device driver for the sensor.Be careful here. ![]() What I get from this log is that for some reason the system fails to *** Booting Zephyr OS build v2.6.0-rc1-ncs1 *** I've tried to run the sht3xd sample using nRF52840DK, which is one of the boards with sample configuration overlay file, but all I get out in the logs is this: This email list is for upstream zephyr, not NCS, but since the sample isĪvailable in upstream zephyr I will respond here. ![]() You may wish to contact the driver author if you want to collaborate. If the differences are superficial you may be able to extend the driver There any example to use as a starting point?I recently reviewed a TCA9546A driver, which seems similar to your That are behind the I2C switch, I will need to implement the tca9548aįunctionality to a device driver to make this work. If yes, to be able to use the available device drivers for the sensors See CONFIG_I2C_INIT_PRIORITY and CONFIG_SENSOR_INIT_PRIORITY The defaults should be OK for your use case. You can control the initialization priorities with Kconfig options, but Our own board will have a sht31 sensor but it is behind a TCA9548A I2C switch, which means a device tree configuration like this:Ĭan I stack the drivers like this?Yes, you can, you just need to make sure the initialization prioritiesĪre managed correctly so the init functions run in the following order: I watched your video, it was very good and informative.Īs I learned that the device will be initialized before execution is in application code, I realize we will have a problem with the driver in our own product. The problem was indeed in the connection between the nRF52840DK and the external sensor.
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