Kernel-4.18.0-80.el8_lmp91000

  • Texas Instruments LMP91000 series of potentiostats

LMP91000: http://www.ti.com/lit/ds/symlink/lmp91000.pdf
LMP91002: http://www.ti.com/lit/ds/symlink/lmp91002.pdf

Required properties:

  • compatible: should be one of the following:

             "ti,lmp91000"
             "ti,lmp91002"
    
  • reg: the I2C address of the device

  • io-channels: the phandle of the iio provider

  • ti,external-tia-resistor: if the property ti,tia-gain-ohm is not defined this
    needs to be set to signal that an external resistor value is being used.

Optional properties:

  • ti,tia-gain-ohm: ohm value of the internal resistor for the transimpedance
    amplifier. Must be 2750, 3500, 7000, 14000, 35000, 120000, or 350000 ohms.

  • ti,rload-ohm: ohm value of the internal resistor load applied to the gas
    sensor. Must be 10, 33, 50, or 100 (default) ohms.

Example:

lmp91000@48 {
compatible = “ti,lmp91000”;
reg = <0x48>;
ti,tia-gain-ohm = <7500>;
ti,rload = <100>;
io-channels = <&adc>;
};