--- /dev/null
+#ifndef _LMC_PROTO_H_
+#define _LMC_PROTO_H_
+
+#include <linux/hdlc.h>
+
+void lmc_proto_attach(lmc_softc_t *sc);
+int lmc_proto_ioctl(lmc_softc_t *sc, struct ifreq *ifr, int cmd);
+int lmc_proto_open(lmc_softc_t *sc);
+void lmc_proto_close(lmc_softc_t *sc);
+__be16 lmc_proto_type(lmc_softc_t *sc, struct sk_buff *skb);
+void lmc_proto_netif(lmc_softc_t *sc, struct sk_buff *skb);
+
+static inline lmc_softc_t* dev_to_sc(struct net_device *dev)
+{
+ return (lmc_softc_t *)dev_to_hdlc(dev)->priv;
+}
+
+#endif