Add ident and camd_proto fields in struct camd_ops.

camd-cs378x.c

@@ -179,6 +179,8 @@ READ:
 }
 
 void camd_proto_cs378x(struct camd_ops *ops) {
+	strcpy(ops->ident, "cs378x");
+	ops->proto		= CAMD_CS378X;
 	ops->connect	= cs378x_connect;
 	ops->disconnect	= cs378x_disconnect;
 	ops->reconnect	= cs378x_reconnect;

data.h

@@ -75,7 +75,13 @@ struct camd_msg {
 	struct ts		*ts;
 };
 
+enum camd_proto {
+	CAMD_CS378X,
+};
+
 struct camd_ops {
+	char ident[16];
+	enum camd_proto proto;
 	int (*connect)(struct camd *c);
 	void (*disconnect)(struct camd *c);
 	int (*reconnect)(struct camd *c);