USB_RESET_DEVICE(9)                       USB Core APIs                       USB_RESET_DEVICE(9)



NAME
       usb_reset_device - warn interface drivers and perform a USB port reset

SYNOPSIS
       int usb_reset_device(struct usb_device * udev);

ARGUMENTS
       udev
           device to reset (not in SUSPENDED or NOTATTACHED state)

DESCRIPTION
       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
       The same as for usb_reset_and_verify_device.

NOTE
       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.

       If an interface is currently being probed or disconnected, we assume its driver knows how
       to handle resets. For all other interfaces, if the driver doesn't have pre_reset and
       post_reset methods then we attempt to unbind it and rebind afterward.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       USB_RESET_DEVICE(9)