diff --git a/kernel-headers/sound/devdep_params.h b/kernel-headers/sound/devdep_params.h
index 0f3b808..0dd4f16 100644
--- a/kernel-headers/sound/devdep_params.h
+++ b/kernel-headers/sound/devdep_params.h
@@ -69,6 +69,15 @@
   int32_t offset;
   uint32_t device;
 } __packed;
+#define HWDEP_FE_BASE 3000
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct snd_pcm_mmap_fd {
+  int32_t dir;
+  int32_t fd;
+  int32_t size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  int32_t actual_size;
+};
+#define SNDRV_PCM_IOCTL_MMAP_DATA_FD _IOWR('U', 0xd2, struct snd_pcm_mmap_fd)
 #endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-
diff --git a/original-kernel-headers/sound/devdep_params.h b/original-kernel-headers/sound/devdep_params.h
index 5061ec0..4660047 100644
--- a/original-kernel-headers/sound/devdep_params.h
+++ b/original-kernel-headers/sound/devdep_params.h
@@ -66,4 +66,14 @@
 	uint32_t device;
 } __packed;
 
+#define HWDEP_FE_BASE                   3000 // unique base for FE hw dep nodes
+struct snd_pcm_mmap_fd {
+	int32_t dir;
+	int32_t fd;
+	int32_t size;
+	int32_t actual_size;
+};
+
+#define SNDRV_PCM_IOCTL_MMAP_DATA_FD    _IOWR('U', 0xd2, struct snd_pcm_mmap_fd)
+
 #endif