suse man page for usb_reset_configuration

USB_RESET_CONFIGURAT(9) 					   USB Core APIs					   USB_RESET_CONFIGURAT(9)

NAME
       usb_reset_configuration - lightweight device reset

SYNOPSIS
       int usb_reset_configuration(struct usb_device * dev);

ARGUMENTS
       dev
	   the device whose configuration is being reset

DESCRIPTION
       This issues a standard SET_CONFIGURATION request to the device using the current configuration. The effect is to reset most USB-related
       state in the device, including interface altsettings (reset to zero), endpoint halts (cleared), and endpoint state (only for bulk and
       interrupt endpoints). Other usbcore state is unchanged, including bindings of usb device drivers to interfaces.

       Because this affects multiple interfaces, avoid using this with composite (multi-interface) devices. Instead, the driver for each interface
       may use usb_set_interface on the interfaces it claims. Be careful though; some devices don't support the SET_INTERFACE request, and others
       won't reset all the interface state (notably endpoint state). Resetting the whole configuration would affect other drivers' interfaces.

       The caller must own the device lock.

       Returns zero on success, else a negative error code.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   USB_RESET_CONFIGURAT(9)