diff --git a/src/libboard_artiq/src/drtioaux_proto.rs b/src/libboard_artiq/src/drtioaux_proto.rs
index 7d13785..62523d6 100644
--- a/src/libboard_artiq/src/drtioaux_proto.rs
+++ b/src/libboard_artiq/src/drtioaux_proto.rs
@@ -54,8 +54,6 @@ pub enum Packet {
     SpiReadReply { succeeded: bool, data: u32 },
     SpiBasicReply { succeeded: bool },
 
-    JdacBasicRequest { destination: u8, dacno: u8, reqno: u8, param: u8 },
-    JdacBasicReply { succeeded: bool, retval: u8 },
 }
 
 impl Packet {
@@ -181,17 +179,6 @@ impl Packet {
                 succeeded: reader.read_bool()?
             },
 
-            0xa0 => Packet::JdacBasicRequest {
-                destination: reader.read_u8()?,
-                dacno: reader.read_u8()?,
-                reqno: reader.read_u8()?,
-                param: reader.read_u8()?,
-            },
-            0xa1 => Packet::JdacBasicReply {
-                succeeded: reader.read_bool()?,
-                retval: reader.read_u8()?
-            },
-
             ty => return Err(Error::UnknownPacket(ty))
         })
     }
@@ -345,18 +332,6 @@ impl Packet {
                 writer.write_bool(succeeded)?;
             },
 
-            Packet::JdacBasicRequest { destination, dacno, reqno, param } => {
-                writer.write_u8(0xa0)?;
-                writer.write_u8(destination)?;
-                writer.write_u8(dacno)?;
-                writer.write_u8(reqno)?;
-                writer.write_u8(param)?;
-            }
-            Packet::JdacBasicReply { succeeded, retval } => {
-                writer.write_u8(0xa1)?;
-                writer.write_bool(succeeded)?;
-                writer.write_u8(retval)?;
-            },
         }
         Ok(())
     }
diff --git a/src/satman/src/main.rs b/src/satman/src/main.rs
index 0f57bf4..5c05e25 100644
--- a/src/satman/src/main.rs
+++ b/src/satman/src/main.rs
@@ -311,14 +311,6 @@ fn process_aux_packet(_repeaters: &mut [repeater::Repeater],
                 &drtioaux::Packet::SpiReadReply { succeeded: false, data: 0 })
         }
 
-        drtioaux::Packet::JdacBasicRequest { destination: _destination, dacno: _dacno,
-                                             reqno: _reqno, param: _param } => {
-            forward!(_routing_table, _destination, *_rank, _repeaters, &packet, timer);
-            let (succeeded, retval) = (false, 0);
-            drtioaux::send(0,
-                &drtioaux::Packet::JdacBasicReply { succeeded: succeeded, retval: retval })
-        }
-
         _ => {
             warn!("received unexpected aux packet");
             Ok(())