Downloading the Configuration

The maXTouch device contains a configuration which is stored in the device’s non-volatile memory (NVM).

Using the maXTouch Studio application, users can create a configuration optimized for their target sensor. The mxt-app application can maXTouch Studio tools can save configuration files in two formats: extended configuration format and RAW format.

Configurations should be saved in RAW format when using the Linux driver.

An example of the header from a .raw file is as follows:

OBP_RAW V1
A4 4A 10 AA 29 1A 20
B56872
70AB0A

Note that the first line of the .raw file contains the string “OBP_RAW V1” to indicate that the configuration was generated in the RAW format.

There are several methods to update the configuration of the device:

• Through the mxt-app userspace application
• Triggered from the sysfs attribute “update_cfg”
• Automatically, upon driver probe