diff --git a/include/linux/atmsvc.h b/include/linux/atmsvc.h
new file mode 100644
index 0000000..aa71583
--- /dev/null
+++ b/include/linux/atmsvc.h
@@ -0,0 +1,55 @@
+/* atmsvc.h - ATM signaling kernel-demon interface definitions */
+ 
+/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
+ 
+
+#ifndef _LINUX_ATMSVC_H
+#define _LINUX_ATMSVC_H
+
+#include <linux/atmapi.h>
+#include <linux/atm.h>
+#include <linux/atmioc.h>
+
+
+#define ATMSIGD_CTRL _IO('a',ATMIOC_SPECIAL)
+				/* become ATM signaling demon control socket */
+
+enum atmsvc_msg_type { as_catch_null, as_bind, as_connect, as_accept, as_reject,
+		       as_listen, as_okay, as_error, as_indicate, as_close,
+		       as_itf_notify, as_modify, as_identify, as_terminate,
+		       as_addparty, as_dropparty };
+
+struct atmsvc_msg {
+	enum atmsvc_msg_type type;
+	atm_kptr_t vcc;
+	atm_kptr_t listen_vcc;		/* indicate */
+	int reply;			/* for okay and close:		   */
+					/*   < 0: error before active	   */
+					/*        (sigd has discarded ctx) */
+					/*   ==0: success		   */
+				        /*   > 0: error when active (still */
+					/*        need to close)	   */
+	struct sockaddr_atmpvc pvc;	/* indicate, okay (connect) */
+	struct sockaddr_atmsvc local;	/* local SVC address */
+	struct atm_qos qos;		/* QOS parameters */
+	struct atm_sap sap;		/* SAP */
+	unsigned int session;		/* for p2pm */
+	struct sockaddr_atmsvc svc;	/* SVC address */
+} __ATM_API_ALIGN;
+
+/*
+ * Message contents: see ftp://icaftp.epfl.ch/pub/linux/atm/docs/isp-*.tar.gz
+ */
+
+/*
+ * Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on
+ * what PCR is used to request bandwidth from the device driver. net/atm/svc.c
+ * tries to do better than that, but only if there's no routing decision (i.e.
+ * if signaling only uses one ATM interface).
+ */
+
+#define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \
+  (tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \
+  (tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR)
+
+#endif