gpiod: enable pullup/pulldown

flyte · Jan 7, 2024 · ad0c809 · ad0c809
1 parent 390cc52
commit ad0c809
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/mqtt_io/modules/gpio/gpiod.py b/mqtt_io/modules/gpio/gpiod.py
@@ -42,6 +42,12 @@ def setup_module(self) -> None:
             PinDirection.OUTPUT: gpiod.line_request.DIRECTION_OUTPUT,
         }
 
+        self.flags_map = {
+            PinPUD.OFF: gpiod.line_request.FLAG_BIAS_DISABLE,
+            PinPUD.UP: gpiod.line_request.FLAG_BIAS_PULL_UP,
+            PinPUD.DOWN: gpiod.line_request.FLAG_BIAS_PULL_DOWN,
+        }
+
         self.interrupt_edge_map = {
             InterruptEdge.RISING: gpiod.line_request.EVENT_RISING_EDGE,
             InterruptEdge.FALLING: gpiod.line_request.EVENT_FALLING_EDGE,
@@ -63,14 +69,14 @@ def setup_pin(
         pullup:     pullup settings are not supported
         """
         # Pullup settings are called bias in libgpiod and are only
-        # available since Linux Kernel 5.5. They are as of now not
-        # yet part of python3-gpiod.
+        # available since Linux Kernel 5.5.
 
         line: "gpiod.line" = self.chip.get_line(pin)
 
         line_request = self.io.line_request()
         line_request.consumer = "mqtt-io"
         line_request.request_type = self.direction_map[direction]
+        line_request.flags = self.flags_map[pullup]
 
         if direction == PinDirection.OUTPUT:
             if initial is not None: