usb_reset_composite_device — warn interface drivers and perform a USB port reset
int usb_reset_composite_device ( | struct usb_device * | udev, |
| struct usb_interface * | iface); |
udevdevice to reset (not in SUSPENDED or NOTATTACHED state)
ifaceinterface bound to the driver making the request (optional)
Warns all drivers bound to registered interfaces (using their pre_reset method), performs the port reset, and then lets the drivers know that the reset is over (using their post_reset method).
Return value is the same as for usb_reset_device.
The caller must own the device lock. For example, it's safe to use
this from a driver probe routine after downloading new firmware.
For calls that might not occur during probe, drivers should lock
the device using usb_lock_device_for_reset.