* impedance.
* @PIN_CONFIG_BIAS_PULL_DOWN: the pin will be pulled down (usually with high
* impedance to GROUND). If the argument is != 0 pull-down is enabled,
- * if it is 0, pull-down is total, i.e. the pin is connected to GROUND.
+ * the value is interpreted by the driver and can be custom or an SI unit
+ * such as ohms.
* @PIN_CONFIG_BIAS_PULL_PIN_DEFAULT: the pin will be pulled up or down based
* on embedded knowledge of the controller hardware, like current mux
* function. The pull direction and possibly strength too will normally
* @PIN_CONFIG_BIAS_DISABLE.
* @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
* impedance to VDD). If the argument is != 0 pull-up is enabled,
- * if it is 0, pull-up is total, i.e. the pin is connected to VDD.
+ * the value is interpreted by the driver and can be custom or an SI unit
+ * such as ohms.
* @PIN_CONFIG_DRIVE_OPEN_DRAIN: the pin will be driven with open drain (open
* collector) which means it is usually wired with other output ports
* which are then pulled up with an external resistor. Setting this