diff --git a/include/socks/device.h b/include/socks/device.h
new file mode 100644
index 0000000..f7bb62f
--- /dev/null
+++ b/include/socks/device.h
@@ -0,0 +1,120 @@
+#ifndef SOCKS_DEVICE_H_
+#define SOCKS_DEVICE_H_
+
+#include <socks/queue.h>
+#include <socks/status.h>
+
+struct device;
+
+#define BLOCK_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_BLOCK ? &(dev)->blk : NULL);
+#define CHAR_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_CHAR ? &(dev)->chr : NULL);
+#define NET_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_NET ? &(dev)->net : NULL);
+#define INPUT_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_INPUT ? &(dev)->input : NULL);
+
+enum device_type {
+	DEV_TYPE_BLOCK,
+	DEV_TYPE_CHAR,
+	DEV_TYPE_NET,
+	DEV_TYPE_INPUT,
+};
+
+struct block_device_ops {
+	kern_status_t(*read_blocks)(struct device *, size_t, size_t *, void *);
+	kern_status_t(*write_blocks)(struct device *, size_t, size_t *, const void *);
+	kern_status_t(*ioctl)(struct device *, unsigned int, void *);
+};
+
+struct net_device_ops {
+	kern_status_t(*online)(struct device *);
+	kern_status_t(*offline)(struct device *);
+	kern_status_t(*transmit)(struct device *, const void *, size_t);
+	kern_status_t(*ioctl)(struct device *, unsigned int, void *);
+};
+
+struct char_device_ops {
+	kern_status_t(*read)(struct device *, size_t, size_t *, void *);
+	kern_status_t(*write)(struct device *, size_t, size_t *, const void *);
+};
+
+struct input_device_ops {
+	kern_status_t(*ioctl)(struct device *, unsigned int, void *);
+};
+
+struct bus_device_ops {
+	kern_status_t(*scan)(struct device *);
+};
+
+struct block_device {
+	struct block_device_ops *b_ops;
+};
+
+struct char_device {
+	struct char_device_ops *c_ops;
+};
+
+struct net_device {
+	struct net_device_ops *n_ops;
+};
+
+struct input_device {
+	struct input_device_ops *i_ops;
+};
+
+struct bus_device {
+	struct bus_device_ops *b_ops;
+};
+
+struct device {
+	enum device_type dev_type;
+	struct device *dev_parent;
+	queue_t dev_children;
+	queue_entry_t dev_childent;
+
+	void *dev_priv;
+
+	union {
+		struct block_device blk;
+		struct char_device chr;
+		struct net_device net;
+		struct input_device input;
+		struct bus_device bus;
+	};
+};
+
+extern kern_status_t device_init(void);
+extern kern_status_t set_root_device(struct device *dev);
+
+extern struct char_device *char_device_create(void);
+extern struct block_device *block_device_create(void);
+extern struct net_device *net_device_create(void);
+extern struct input_device *input_device_create(void);
+extern struct bus_device *bus_device_create(void);
+
+static inline struct device *char_device_base(struct char_device *dev)
+{
+	return (struct device *)((char *)dev - offsetof(struct device, chr));
+}
+
+static inline struct device *block_device_base(struct block_device *dev)
+{
+	return (struct device *)((char *)dev - offsetof(struct device, blk));
+}
+
+static inline struct device *net_device_base(struct net_device *dev)
+{
+	return (struct device *)((char *)dev - offsetof(struct device, net));
+}
+
+static inline struct device *input_device_base(struct input_device *dev)
+{
+	return (struct device *)((char *)dev - offsetof(struct device, input));
+}
+
+static inline struct device *bus_device_base(struct bus_device *dev)
+{
+	return (struct device *)((char *)dev - offsetof(struct device, bus));
+}
+
+extern kern_status_t device_register(struct device *dev, struct device *parent);
+
+#endif