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       usbmodules [--skipbroken] [--device /proc/bus/bus/NNN/NNN]
       [--showdriver  /proc/bus/bus/NNN/NNN] [--check modulename]
       [--help] [--mapfile pathname] [--version pathname]


       usbmodules lists driver modules that may be able to manage
       interfaces  on  currently plugged in USB devices.  usbmod­
       ules may be used by /sbin/hotplug or  one  of  its  agents
       (normally  /etc/hotplug/usb.agent)  when  USB  devices are
       "hot plugged" into the system.  This can be  done  by  the
       following Bourne shell syntax:

                   for module in $(usbmodules --device $DEVICE) ;

                        modprobe -s -k "$module"


       The DEVICE environment variable is passed from the  kernel
       to  /sbin/hotplug during USB hotplugging if the kernel was
       configured using usbdevfs.  usbmodules currently  requires
       usbdevfs to operate.

       When  a  USB  device is removed from the system, the Linux
       kernel will decrement a usage count on USB driver  module.
       If  this  count  drops to zero (i.e., there are no clients
       for the USB device driver), then the modprobe  -r  process
       that  is  normally  configured  to run from cron every few
       minutes will eventually remove the unneeded module.


              Do not read  "/etc/usbmodules.blacklist.conf",  ask
              the  device  node  in /proc/bus/bus/NNN/NNN for the
              required driver. This will break some devices.

       --check modulename
              Instead of listing the relevant modules, just  exit
              with   code  0  (success)  if  the  given  module's
              exported  USB  ID  patterns  matches.    Otherwise,
              return  failure.  usbmodules emits no output either

       --showdriver /proc/bus/usb/MMM/NNN
              Show the active kernel driver name  for  the  usbfs
              device  node.  It  may return "(none)" if no loaded
              driver claimed the interface.

              built with.


              This file is  automatically  generated  by  depmod,
              versions 2.4.2 and later, and is used by usbmodules
              to determine which modules correspond to which  USB

              An  optional  interface  to USB devices provided by
              Linux kernels with versions of the 2.4 USB support.
              Contains  per-bus  subdirectories  with  per-device
              files (offering a usermode driver API  as  well  as
              access  to device and configuration descriptors), a
              devices file containing a list of all USB  devices,
              and a drivers file listing USB device drivers known
              to the USB subsystem.

              Some devices do not like the  poking  from  usbmod­
              ules,  you  will see timeouts in dmesg. To skip the
              usual poking, create a file  /etc/usbmodules.black­
              list.conf with the following format:

              driver vendor product

              vendor  and product must be in hex. Empty lines and
              lines with # and whitespaces will be ignored.


       lsusb(8), http://linux-hotplug.sourceforge.net


       usbmodules   was    written    by    Adam    J.    Richter
       <adam@yggdrasil.com>,  and is based partly on lsusb, which
       was written by Thomas Sailer <sailer@ife.ee.ethz.ch>.


       usbmodules is copyright 2000, Yggdrasil Computing,  Incor­
       porated,  and  copyright  1999, Thomas Sailer.  usbmodules
       may may be copied under the terms and conditions  of  ver­
       sion  2  of the GNU General Public License as published by
       the Free  Software  Foundation  (Cambrige,  Massachusetts,
       United States of America).




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