added comedi_buf_offset function that returns buf_user_ptr

diff --git a/include/comedilib.h b/include/comedilib.h
index 2e93a66bc7701f25fb29032cb0fc119ca190714b..580cc9f77c968e5521e58beb43a7b971b75e6a4e 100644 (file)
--- a/include/comedilib.h
+++ b/include/comedilib.h
@@ -155,7 +155,7 @@ int comedi_buf_resize_max(comedi_t *it, unsigned int subdev, unsigned int max_si
 int comedi_buf_size(comedi_t *it, unsigned int subdev);
 int comedi_buf_contents(comedi_t *it, unsigned int subdev);
 int comedi_buf_mark_read(comedi_t *it, unsigned int subdev, unsigned int bytes);
-
+int comedi_buf_offset(comedi_t *it, unsigned int subdev);
 
 #ifdef __cplusplus
 }