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lsusb



SYNOPSIS

       lsusb [ options ]


DESCRIPTION

       lsusb  is  a  utility for displaying information about all
       USB buses in the system and all devices connected to them.

       To  make use of all the features of this program, you need
       to have a Linux kernel which  supports  the  /proc/bus/usb
       interface (e.g., Linux kernel 2.3.15 or newer).


OPTIONS

       -v     Tells  lsusb  to  be  verbose  and display detailed
              information about all devices.  You  must  be  root
              for this to work.

       -vv    Tells  lsusb  to  be  very verbose and display even
              more  information  (actually  everything  the   PCI
              device is able to tell).  You must be root for this
              to work.

       -s [[bus]:][devnum]
              Show only devices in specified bus  and/or  devnum.
              Both ID's are given in hexadecimal and may be omit­
              ted.

       -d vendor:[product]
              Show only devices with  the  specified  vendor  and
              product  ID.   Both  ID's are given in hexadecimal;
              the product ID may be omitted, but  the  vendor  ID
              must be given.

       -p procpath
              Use another path instead of /proc/bus/usb.

       -D device
              Do  not  scan  the /proc/bus/usb directory, instead
              display only information  about  the  device  whose
              device  file  is  given.  The device file should be
              something like /proc/bus/usb/001/001.  This  option
              displays  detailed information; you must be root to
              do this.

       -t     Tells lsusb to dump the physical USB device hierar­
              chy as a tree.

       -x     This option is reserved for future use.

       -V, --version
              Print  version information on standard output, then
              exit successfully.


FILES

       /usr/share/usb.ids
              A  list  of  all known USB ID's (vendors, products,
              classes, subclasses and protocols).

       /proc/bus/usb
              An  interface  to  USB  devices  provided  by   the
              post-2.3.15  Linux kernels. Contains per-bus subdi­
              rectories with per-device files and a devices  file
              containing  a list of all USB devices.  This inter­
              face is also support by some 2.2 Linux kernels.


SEE ALSO

       lspci(8)


AUTHOR

       Thomas Sailer, <sailer@ife.ee.ethz.ch>.

usbutils-0.9            14 September 1999                lsusb(8)
  
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