feat(galil-rio): Add di_out channels to GalilRIO

tests/tests_devices/test_galil.py

@@ -274,11 +274,18 @@ def test_galil_rio_signal_read(galil_rio):
 
     assert galil_rio.an_ch0._READ_TIMEOUT == 0.1  # Default read timeout of 100ms
     # Mock the socket to return specific values
-    galil_rio.controller.sock.buffer_recv = [b" 1.234 2.345 3.456 4.567 5.678 6.789 7.890 8.901"]
+    an_buffer = b" 1.234 2.345 3.456 4.567 5.678 6.789 7.890 8.901\r\n"
+    di_buffer = b"0.0\r\n"
+    galil_rio.controller.sock.buffer_recv = []  # Clear any existing buffer
+    for name in galil_rio.component_names:
+        if name.startswith("an_ch"):
+            galil_rio.controller.sock.buffer_recv.append(an_buffer)
+        elif name.startswith("di_ou"):
+            galil_rio.controller.sock.buffer_recv.append(di_buffer)
     galil_rio._last_readback = 0  # Force read from controller
 
     read_values = galil_rio.read()
-    assert len(read_values) == 8  # 8 channels
+    assert len(read_values) == 16  # 16 channels
     expected_values = {
         galil_rio.an_ch0.name: {"value": 1.234},
         galil_rio.an_ch1.name: {"value": 2.345},
@@ -356,3 +363,18 @@ def test_galil_rio_signal_read(galil_rio):
             for value in value_callback_buffer[0].values()
         ]
     )
+
+
+def test_galil_rio_digital_out_signal(galil_rio):
+    """
+    Test that the Galil RIO digital output signal can be set correctly.
+    """
+    # Set digital output channel 0 to high
+    galil_rio.controller.sock.buffer_recv = [b":"]  # Mock response for readback]
+    galil_rio.di_out0.put(1)
+    assert galil_rio.controller.sock.buffer_put == [b"SB0\r"]
+
+    galil_rio.controller.sock.buffer_recv = [b":"]  # Mock response for readback
+    # Set digital output channel 0 to low
+    galil_rio.di_out0.put(0)
+    assert galil_rio.controller.sock.buffer_put == [b"SB0\r", b"CB0\r"]