#compdef lsusb

local usbidsline vendorid pair ret=1
local curcontext="$curcontext" state line expl
typeset -A opt_args

_arguments -C \
  '(-v --verbose -t --tree)'{-v,--verbose}'[be verbose]' \
  '-s+[filter devices by bus and/or device number]:bus and/or devnum to show' \
  '-d+[filter devices by vendor/product ID]:vendor and product to show:->vendorproduct' \
  '-D+[display only specified device]:device:_files -g "*(-%)" -P / -W /' \
  '(-t --tree -v --verbose)'{-t,--tree}'[dump the physical USB device hierarchy as a tree]' \
  '(-)'{-V,--version}'[print version information]' \
  '(-)'{-h,--help}'[print help information]' && ret=0

if [[ -n $state && ${+_lsusb_vendors} -eq 0 ]]; then
  typeset -A _lsusb_vendors _lsusb_devices
  cat /usr/share/(misc|hwdata)/usb.ids | while IFS="" read usbidsline
  do
    case "$usbidsline" in
      ((#b)([0-9a-f]##) ##(*))
        vendorid="$match[1]"
        _lsusb_vendors[$vendorid]="$match[2]"
      ;;
      (	(#b)([0-9a-f]##) ##(*)))
        pair="$vendorid:$match[1]"
        _lsusb_devices[${pair}]="$match[2]"
      ;;
    esac
  done
fi

_wanted products expl 'vendor ID:product ID' compadd -k _lsusb_devices && ret=0

return ret