# What is x-plate-ohms on touch?

I am using tsc2007 on linux.
The linux kernel has the following configuration to use tsc2007.

Required properties:
- compatible: must be "ti,tsc2007".
- reg: I2C address of the chip.
- ti,x-plate-ohms: X-plate resistance in ohms.
...
...
...
tsc2007@49 {
compatible = "ti,tsc2007";
reg = <0x49>;
interrupt-parent = <&gpio4>;
interrupts = <0x0 0x8>;
gpios = <&gpio4 0 0>;
ti,x-plate-ohms = <180>;
};


What does x-plate-ohms mean?
Is the value dependent on the hardware?
How should x-plate-ohms be measured?

• With a dmm that measures resistance. – Solar Mike Feb 1 '18 at 7:17
• @SolarMike I have a dmm. But I do not know what x-plate-ohms is. – DonBit Feb 1 '18 at 7:27
• You do show the answer "- ti,x-plate-ohms: X-plate resistance in ohms." ie the resistance of the plate for the x-direction in ohms. – Solar Mike Feb 1 '18 at 7:28