#ifndef _DEVICE_H_
#define _DEVICE_H_
-#include <linux/config.h>
#include <linux/ioport.h>
#include <linux/kobject.h>
#include <linux/klist.h>
#define BUS_ID_SIZE KOBJ_NAME_LEN
-enum {
- SUSPEND_NOTIFY,
- SUSPEND_SAVE_STATE,
- SUSPEND_DISABLE,
- SUSPEND_POWER_DOWN,
-};
-
-enum {
- RESUME_POWER_ON,
- RESUME_RESTORE_STATE,
- RESUME_ENABLE,
-};
-
struct device;
struct device_driver;
struct class;
struct driver_attribute * drv_attrs;
int (*match)(struct device * dev, struct device_driver * drv);
- int (*hotplug) (struct device *dev, char **envp,
- int num_envp, char *buffer, int buffer_size);
+ int (*uevent)(struct device *dev, char **envp,
+ int num_envp, char *buffer, int buffer_size);
+ int (*probe)(struct device * dev);
+ int (*remove)(struct device * dev);
+ void (*shutdown)(struct device * dev);
int (*suspend)(struct device * dev, pm_message_t state);
int (*resume)(struct device * dev);
};
extern void bus_rescan_devices(struct bus_type * bus);
-extern struct bus_type * get_bus(struct bus_type * bus);
-extern void put_bus(struct bus_type * bus);
-
-extern struct bus_type * find_bus(char * name);
-
/* iterator helpers for buses */
int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
int (*probe) (struct device * dev);
int (*remove) (struct device * dev);
void (*shutdown) (struct device * dev);
- int (*suspend) (struct device * dev, pm_message_t state, u32 level);
- int (*resume) (struct device * dev, u32 level);
+ int (*suspend) (struct device * dev, pm_message_t state);
+ int (*resume) (struct device * dev);
};
struct subsystem subsys;
struct list_head children;
+ struct list_head devices;
struct list_head interfaces;
struct semaphore sem; /* locks both the children and interfaces lists */
struct class_attribute * class_attrs;
struct class_device_attribute * class_dev_attrs;
- int (*hotplug)(struct class_device *dev, char **envp,
+ int (*uevent)(struct class_device *dev, char **envp,
int num_envp, char *buffer, int buffer_size);
void (*release)(struct class_device *dev);
extern int class_register(struct class *);
extern void class_unregister(struct class *);
-extern struct class * class_get(struct class *);
-extern void class_put(struct class *);
-
struct class_attribute {
struct attribute attr;
* @node: for internal use by the driver core only.
* @kobj: for internal use by the driver core only.
* @devt_attr: for internal use by the driver core only.
+ * @groups: optional additional groups to be created
* @dev: if set, a symlink to the struct device is created in the sysfs
* directory for this struct class device.
* @class_data: pointer to whatever you want to store here for this struct
* set, this will be called instead of the class specific release function.
* Only use this if you want to override the default release function, like
* when you are nesting class_device structures.
- * @hotplug: pointer to a hotplug function for this struct class_device. If
- * set, this will be called instead of the class specific hotplug function.
- * Only use this if you want to override the default hotplug function, like
+ * @uevent: pointer to a uevent function for this struct class_device. If
+ * set, this will be called instead of the class specific uevent function.
+ * Only use this if you want to override the default uevent function, like
* when you are nesting class_device structures.
*/
struct class_device {
struct device * dev; /* not necessary, but nice to have */
void * class_data; /* class-specific data */
struct class_device *parent; /* parent of this child device, if there is one */
+ struct attribute_group ** groups; /* optional groups */
void (*release)(struct class_device *dev);
- int (*hotplug)(struct class_device *dev, char **envp,
+ int (*uevent)(struct class_device *dev, char **envp,
int num_envp, char *buffer, int buffer_size);
char class_id[BUS_ID_SIZE]; /* unique to this class */
};
struct kobject kobj;
char bus_id[BUS_ID_SIZE]; /* position on parent bus */
struct device_attribute uevent_attr;
+ struct device_attribute *devt_attr;
struct semaphore sem; /* semaphore to synchronize calls to
* its driver.
struct dma_coherent_mem *dma_mem; /* internal for coherent mem
override */
+ /* class_device migration path */
+ struct list_head node;
+ struct class *class; /* optional*/
+ dev_t devt; /* dev_t, creates the sysfs "dev" */
+
void (*release)(struct device * dev);
};
extern void device_release_driver(struct device * dev);
extern int device_attach(struct device * dev);
extern void driver_attach(struct device_driver * drv);
+extern void device_reprobe(struct device *dev);
+/*
+ * Easy functions for dynamically creating devices on the fly
+ */
+extern struct device *device_create(struct class *cls, struct device *parent,
+ dev_t devt, char *fmt, ...)
+ __attribute__((format(printf,4,5)));
+extern void device_destroy(struct class *cls, dev_t devt);
/*
* Platform "fixup" functions - allow the platform to have their say
extern void put_device(struct device * dev);
-/* drivers/base/platform.c */
-
-struct platform_device {
- const char * name;
- u32 id;
- struct device dev;
- u32 num_resources;
- struct resource * resource;
-};
-
-#define to_platform_device(x) container_of((x), struct platform_device, dev)
-
-extern int platform_device_register(struct platform_device *);
-extern void platform_device_unregister(struct platform_device *);
-
-extern struct bus_type platform_bus_type;
-extern struct device platform_bus;
-
-extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
-extern int platform_get_irq(struct platform_device *, unsigned int);
-extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *);
-extern int platform_get_irq_byname(struct platform_device *, char *);
-extern int platform_add_devices(struct platform_device **, int);
-
-extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int);
-
-/* drivers/base/power.c */
+/* drivers/base/power/shutdown.c */
extern void device_shutdown(void);
dev_printk(KERN_INFO , dev , format , ## arg)
#define dev_warn(dev, format, arg...) \
dev_printk(KERN_WARNING , dev , format , ## arg)
+#define dev_notice(dev, format, arg...) \
+ dev_printk(KERN_NOTICE , dev , format , ## arg)
/* Create alias, so I can be autoloaded. */
#define MODULE_ALIAS_CHARDEV(major,minor) \
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