Man page 9 : usb_driver_claim_interface

usb_driver_claim_interface - bind a driver to an interface

int usb_driver_claim_interface(struct usb_driver *  driver , struct usb_interface *  iface , void *  priv );

driver
    the driver to be bound

iface
    the interface to which it will be bound; must be in the usb deviceAqs active configuration

priv
    driver data associated with that interface

This is used by usb device drivers that need to claim more than one interface on a device when probing (audio and acm are current examples). No device driver should directly modify internal usb_interface or usb_device structure members.

Few drivers should need to use this routine, since the most natural way to bind to an interface is to return the private data from the driverAqs probe method.

Callers must own the device lock, so driver probe entries donAqt need extra locking, but other call contexts may need to explicitly claim that lock.