what is the meaning of the entry “IntPullUp” for the native I2C driver?
According to the document “Device Driver Documentation” (Version 1.04, 2015-04-09) the registry entry “IntPullUp” for the native I2C driver supports the following values:
0: Disable internal pull-up (default)
1: 100k pull-down
2: 47k pull-up
3: 100k pull-up
4: 22k pull-up
The description of the soft I2C driver states that the IntPullUp value is related to SCL and SDA.
Because the F&S image for the efusA9 / efusA9X has this value configured to 1 and SDA and SCL are high I’m not sure about the meaning of this parameter.