diff --git a/include/comedi.h b/include/comedi.h
index c976586..c4954ec 100644
--- a/include/comedi.h
+++ b/include/comedi.h
@@ -41,6 +41,8 @@ extern "C" {
 
 /* number of config options in the config structure */
 #define COMEDI_NDEVCONFOPTS 32
+#define COMEDI_DEVCONF_AUX_DATA		30
+#define COMEDI_DEVCONF_AUX_DATA_LENGTH	31
 
 /* max length of device and driver names */
 #define COMEDI_NAMELEN 20
@@ -218,7 +220,9 @@ typedef unsigned short sampl_t;
 #define INSN_CONFIG_ALT_SOURCE		0x14
 #define INSN_CONFIG_DIGITAL_TRIG	0x15
 #define INSN_CONFIG_BLOCK_SIZE		0x16
-#define INSN_CONFIG_TIMER_1			0x17
+#define INSN_CONFIG_TIMER_1		0x17
+#define INSN_CONFIG_FILTER		0x18
+#define INSN_CONFIG_CHANGE_NOTIFY	0x19
 
 /* ioctls */