+struct v4l2_int_device;
+
+struct v4l2_int_master {
+ int (*attach)(struct v4l2_int_device *slave);
+ void (*detach)(struct v4l2_int_device *slave);
+};
+
+typedef int (v4l2_int_ioctl_func)(struct v4l2_int_device *);
+typedef int (v4l2_int_ioctl_func_0)(struct v4l2_int_device *);
+typedef int (v4l2_int_ioctl_func_1)(struct v4l2_int_device *, void *);
+
+struct v4l2_int_ioctl_desc {
+ int num;
+ v4l2_int_ioctl_func *func;
+};
+
+struct v4l2_int_slave {
+ /* Don't touch master. */
+ struct v4l2_int_device *master;
+
+ char attach_to[V4L2NAMESIZE];
+
+ int num_ioctls;
+ struct v4l2_int_ioctl_desc *ioctls;
+};
+
+struct v4l2_int_device {
+ /* Don't touch head. */
+ struct list_head head;
+
+ struct module *module;
+
+ char name[V4L2NAMESIZE];
+
+ enum v4l2_int_type type;
+ union {
+ struct v4l2_int_master *master;
+ struct v4l2_int_slave *slave;
+ } u;
+
+ void *priv;
+};
+
+int v4l2_int_device_register(struct v4l2_int_device *d);
+void v4l2_int_device_unregister(struct v4l2_int_device *d);
+
+int v4l2_int_ioctl_0(struct v4l2_int_device *d, int cmd);
+int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg);
+
+/*
+ *
+ * Types and definitions for IOCTL commands.
+ *
+ */
+
+/* Slave interface type. */
+enum v4l2_if_type {
+ /*
+ * Parallel 8-, 10- or 12-bit interface, used by for example
+ * on certain image sensors.
+ */
+ V4L2_IF_TYPE_BT656,
+};
+
+enum v4l2_if_type_bt656_mode {
+ /*
+ * Modes without Bt synchronisation codes. Separate
+ * synchronisation signal lines are used.
+ */
+ V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT,
+ V4L2_IF_TYPE_BT656_MODE_NOBT_10BIT,
+ V4L2_IF_TYPE_BT656_MODE_NOBT_12BIT,
+ /*
+ * Use Bt synchronisation codes. The vertical and horizontal
+ * synchronisation is done based on synchronisation codes.
+ */
+ V4L2_IF_TYPE_BT656_MODE_BT_8BIT,
+ V4L2_IF_TYPE_BT656_MODE_BT_10BIT,
+};
+
+struct v4l2_if_type_bt656 {
+ /*
+ * 0: Frame begins when vsync is high.
+ * 1: Frame begins when vsync changes from low to high.
+ */
+ unsigned frame_start_on_rising_vs:1;
+ /* Use Bt synchronisation codes for sync correction. */
+ unsigned bt_sync_correct:1;
+ /* Swap every two adjacent image data elements. */
+ unsigned swap:1;
+ /* Inverted latch clock polarity from slave. */
+ unsigned latch_clk_inv:1;
+ /* Hs polarity. 0 is active high, 1 active low. */
+ unsigned nobt_hs_inv:1;
+ /* Vs polarity. 0 is active high, 1 active low. */
+ unsigned nobt_vs_inv:1;
+ enum v4l2_if_type_bt656_mode mode;
+ /* Minimum accepted bus clock for slave (in Hz). */
+ u32 clock_min;
+ /* Maximum accepted bus clock for slave. */
+ u32 clock_max;
+ /*
+ * Current wish of the slave. May only change in response to
+ * ioctls that affect image capture.
+ */
+ u32 clock_curr;
+};
+
+struct v4l2_ifparm {
+ enum v4l2_if_type if_type;
+ union {
+ struct v4l2_if_type_bt656 bt656;
+ } u;
+};
+
+/* IOCTL command numbers. */