diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/usb.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 36dee7b0e228..9782078f56b6 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -88,6 +88,7 @@ struct usb_host_interface { * function of the driver, after it has been assigned a minor * number from the USB core by calling usb_register_dev(). * @dev: driver model's view of this device + * @class_dev: driver model's class view of this device. * * USB device drivers attach to interfaces on a physical device. Each * interface encapsulates a single high level function, such as feeding @@ -121,8 +122,10 @@ struct usb_interface { struct usb_driver *driver; /* driver */ int minor; /* minor number this interface is bound to */ struct device dev; /* interface specific device info */ + struct class_device class_dev; }; #define to_usb_interface(d) container_of(d, struct usb_interface, dev) +#define class_dev_to_usb_interface(d) container_of(d, struct usb_interface, class_dev) #define interface_to_usbdev(intf) \ container_of(intf->dev.parent, struct usb_device, dev) @@ -441,6 +444,25 @@ struct usb_driver { extern struct bus_type usb_bus_type; +/** + * struct usb_class_driver - identifies a USB driver that wants to use the USB major number + * @name: devfs name for this driver. Will also be used by the driver + * class code to create a usb class device. + * @fops: pointer to the struct file_operations of this driver. + * @mode: the mode for the devfs file to be created for this driver. + * @minor_base: the start of the minor range for this driver. + * + * This structure is used for the usb_register_dev() and + * usb_unregister_dev() functions, to consolodate a number of the + * paramaters used for them. + */ +struct usb_class_driver { + char *name; + struct file_operations *fops; + mode_t mode; + int minor_base; +}; + /* * use these in module_init()/module_exit() * and don't forget MODULE_DEVICE_TABLE(usb, ...) @@ -448,8 +470,10 @@ extern struct bus_type usb_bus_type; extern int usb_register(struct usb_driver *); extern void usb_deregister(struct usb_driver *); -extern int usb_register_dev(struct file_operations *fops, int minor, int num_minors, int *start_minor); -extern void usb_deregister_dev(int num_minors, int start_minor); +extern int usb_register_dev(struct usb_interface *intf, + struct usb_class_driver *class_driver); +extern void usb_deregister_dev(struct usb_interface *intf, + struct usb_class_driver *class_driver); extern int usb_device_probe(struct device *dev); extern int usb_device_remove(struct device *dev); |