mod-usbkbd.sh

   1 #!/bin/sh
   2 USBKBD_RCSID='$Revision$ $Date::                            $'
   3
   4 # geninitrd mod: usbkbd
   5
   6 find_modules_usbkbd() {
   7         debug "Finding USB keyboard modules"
   8
   9         if [ "$(echo /sys/class/input/input*)" = "/sys/class/input/input*" ]; then
  10                 return
  11         fi
  12
  13         local modules i module bInterfaceClass bInterfaceProtocol
  14
  15         for i in /sys/class/input/input*; do
  16                 # standard usb keyboards
  17                 if [ -f $i/device/bInterfaceClass -a -f $i/device/bInterfaceProtocol ]; then
  18                         bInterfaceClass=$(cat $i/device/bInterfaceClass)
  19                         bInterfaceProtocol=$(cat $i/device/bInterfaceProtocol)
  20                         if [ "$bInterfaceClass" = "03" -a "$bInterfaceProtocol" = "01" ]; then
  21                                 module=$(readlink $i/device/driver/module)
  22                                 module=$(basename $module)
  23
  24                                 if [ -n "$module" ]; then
  25                                         debug "Found USB Keyboard: $(cat $i/name)"
  26                                         modules="$modules $module"
  27                                 fi
  28                         fi
  29                 fi
  30
  31                 # logitech unifying receiver (unfortunately I know no way to detect keyboard only)
  32                 if grep -qi "Logitech Unifying Device" $i/name; then
  33                         module=$(readlink $i/device/driver/module)
  34                         module=$(basename $module)
  35
  36                         if [ -n "$module" ]; then
  37                                 debug "Found USB Logitech Unifying Device: $(cat $i/name)"
  38                                 modules="$modules $module"
  39                         fi
  40                 fi
  41         done
  42
  43         if [ -n "$modules" ]; then
  44                 # usb controllers
  45                 for m in $(find_modules_by_class "0c03"); do
  46                         find_module $m
  47                 done
  48
  49                 for m in $modules; do
  50                         find_module $m
  51                 done
  52         fi
  53 }