1USB_RESET_DEVICE(9) USB Core APIs USB_RESET_DEVICE(9)
2
3
4
6 usb_reset_device - warn interface drivers and perform a USB port reset
7
9 int usb_reset_device(struct usb_device * udev);
10
12 udev
13 device to reset (not in SUSPENDED or NOTATTACHED state)
14
16 Warns all drivers bound to registered interfaces (using their pre_reset
17 method), performs the port reset, and then lets the drivers know that
18 the reset is over (using their post_reset method).
19
20 Return value is the same as for usb_reset_and_verify_device.
21
22 The caller must own the device lock. For example, it's safe to use this
23 from a driver probe routine after downloading new firmware. For calls
24 that might not occur during probe, drivers should lock the device using
25 usb_lock_device_for_reset.
26
27 If an interface is currently being probed or disconnected, we assume
28 its driver knows how to handle resets. For all other interfaces, if the
29 driver doesn't have pre_reset and post_reset methods then we attempt to
30 unbind it and rebind afterward.
31
33Kernel Hackers Manual 2.6. November 2011 USB_RESET_DEVICE(9)