usb_reset_device
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## 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 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.

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