diff --git a/libc/kernel/common/linux/cpcap_audio.h b/libc/kernel/common/linux/cpcap_audio.h
index 65c7283..0b58685 100644
--- a/libc/kernel/common/linux/cpcap_audio.h
+++ b/libc/kernel/common/linux/cpcap_audio.h
@@ -44,7 +44,7 @@
 
 #define CPCAP_AUDIO_IN_SET_INPUT _IOW(CPCAP_AUDIO_MAGIC, 4,   const struct cpcap_audio_stream *)
 
-#define CPCAP_AUDIO_IN_GET_INPUT _IOR(CPCAP_AUDIO_MAGIC, 5, struct cpcap_audio_stream *)
+#define CPCAP_AUDIO_IN_GET_INPUT _IOR(CPCAP_AUDIO_MAGIC, 5,   struct cpcap_audio_stream *)
 
 #define CPCAP_AUDIO_IN_VOL_MIN 0
 #define CPCAP_AUDIO_IN_VOL_MAX 31
@@ -53,5 +53,10 @@
 
 #define CPCAP_AUDIO_IN_GET_VOLUME _IOR(CPCAP_AUDIO_MAGIC, 7, unsigned int *)
 
+#define CPCAP_AUDIO_OUT_GET_RATE _IOR(CPCAP_AUDIO_MAGIC, 8, unsigned int *)
+#define CPCAP_AUDIO_OUT_SET_RATE _IOW(CPCAP_AUDIO_MAGIC, 9, unsigned int *)
+#define CPCAP_AUDIO_IN_GET_RATE _IOR(CPCAP_AUDIO_MAGIC, 10, unsigned int *)
+#define CPCAP_AUDIO_IN_SET_RATE _IOW(CPCAP_AUDIO_MAGIC, 11, unsigned int *)
+
 #endif