On 20/09/2018 9:13 PM, Song Qiang wrote:
PNI RM3100 magnetometer is a high resolution, large signal immunity magnetometer, composed of 3 single sensors and a processing chip. PNI is currently not in the vendors list, so this is also adding it.
In the subject: Isn't the RM3100 a 3axis mag. The 9axis bit comes when you combine it with an accel / gryo I think. ... snip
+++ b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt @@ -0,0 +1,57 @@ +* PNI RM3100 9-axis magnetometer sensor + +I2C Bus: + +Required properties: + +- compatible : should be "pni,rm3100-i2c" +- reg : the I2C address of the magnetometer +
... snip
+SPI Bus: + +Required properties: + +- compatible : should be "pni,rm3100-spi" +- reg : address of sensor, usually 0 or 1. +
Looking at other drivers supporting i2c / spi. They use the same compatible for both. eg: see iio/accel/adxl345_*.c and it's binding doc: Required properties: - compatible : should be "adi,adxl345" - reg : the I2C address or SPI chip select number of the sensor
