diff --git a/src/shearwater_common.c b/src/shearwater_common.c
index fd58488..a7f67f6 100644
--- a/src/shearwater_common.c
+++ b/src/shearwater_common.c
@@ -316,27 +316,6 @@ done:
 	return status;
 }
 
-dc_status_t
-shearwater_common_command (shearwater_common_device_t *device, const unsigned char input[], unsigned int isize)
-{
-	dc_status_t status = DC_STATUS_SUCCESS;
-	dc_device_t *abstract = (dc_device_t *) device;
-
-	if (isize > SZ_PACKET)
-		return DC_STATUS_INVALIDARGS;
-
-	if (device_is_cancelled (abstract))
-		return DC_STATUS_CANCELLED;
-
-	// Send the command packet.
-	status = shearwater_common_slip_write (device, input, isize);
-	if (status != DC_STATUS_SUCCESS)
-		ERROR (abstract->context, "Failed to send the command packet.");
-
-	return status;
-}
-
-
 
 dc_status_t
 shearwater_common_transfer (shearwater_common_device_t *device, const unsigned char input[], unsigned int isize, unsigned char output[], unsigned int osize, unsigned int *actual)
@@ -400,6 +379,7 @@ shearwater_common_transfer (shearwater_common_device_t *device, const unsigned c
 	return DC_STATUS_SUCCESS;
 }
 
+
 dc_status_t
 shearwater_common_download (shearwater_common_device_t *device, dc_buffer_t *buffer, unsigned int address, unsigned int size, unsigned int compression, dc_event_progress_t *progress)
 {
diff --git a/src/shearwater_common.h b/src/shearwater_common.h
index b6c4532..35a0d01 100644
--- a/src/shearwater_common.h
+++ b/src/shearwater_common.h
@@ -54,9 +54,6 @@ typedef struct shearwater_common_device_t {
 dc_status_t
 shearwater_common_setup (shearwater_common_device_t *device, dc_context_t *context, dc_iostream_t *iostream);
 
-dc_status_t
-shearwater_common_command (shearwater_common_device_t *device, const unsigned char input[], unsigned int isize);
-
 dc_status_t
 shearwater_common_transfer (shearwater_common_device_t *device, const unsigned char input[], unsigned int isize, unsigned char output[], unsigned int osize, unsigned int *actual);