mod-usbkbd.sh

   1 #!/bin/sh
   2 # geninitrd mod: usbkbd
   3
   4 find_modules_usbkbd() {
   5         verbose "Finding USB keyboard modules"
   6
   7         if [ "$(echo /sys/class/input/input*)" = "/sys/class/input/input*" ]; then
   8                 return
   9         fi
  10
  11         local modules i module bInterfaceClass bInterfaceProtocol
  12
  13         for i in /sys/bus/usb/devices/*-*:*; do
  14                 # standard usb keyboards
  15                 if [ -f $i/bInterfaceClass -a -f $i/bInterfaceProtocol ]; then
  16                         bInterfaceClass=$(cat $i/bInterfaceClass)
  17                         bInterfaceProtocol=$(cat $i/bInterfaceProtocol)
  18                         if [ "$bInterfaceClass" = "03" -a "$bInterfaceProtocol" = "01" ]; then
  19                                 module=$(readlink $i/driver/module)
  20                                 module=$(basename $module)
  21
  22                                 if [ -n "$module" ]; then
  23                                         verbose "Found USB Keyboard driver: $module"
  24                                         modules="$modules $module"
  25                                 fi
  26                         fi
  27                 fi
  28         done
  29
  30         for i in /sys/class/input/input*; do
  31                 # standard usb keyboards
  32                 if [ -f $i/device/bInterfaceClass -a -f $i/device/bInterfaceProtocol ]; then
  33                         bInterfaceClass=$(cat $i/device/bInterfaceClass)
  34                         bInterfaceProtocol=$(cat $i/device/bInterfaceProtocol)
  35                         if [ "$bInterfaceClass" = "03" -a "$bInterfaceProtocol" = "01" ]; then
  36                                 module=$(readlink $i/device/driver/module)
  37                                 module=$(basename $module)
  38
  39                                 if [ -n "$module" ]; then
  40                                         verbose "Found USB Keyboard: $(cat $i/name)"
  41                                         modules="$modules $module"
  42                                 fi
  43                         fi
  44                 fi
  45
  46                 # logitech unifying receiver (unfortunately I know no way to detect keyboard only)
  47                 if grep -qi "Logitech Unifying Device" $i/name; then
  48                         module=$(readlink $i/device/driver/module)
  49                         module=$(basename $module)
  50
  51                         if [ -n "$module" ]; then
  52                                 verbose "Found USB Logitech Unifying Device: $(cat $i/name)"
  53                                 modules="$modules $module"
  54                         fi
  55                 fi
  56         done
  57
  58         if [ -n "$modules" ]; then
  59                 # usb controllers
  60                 for m in $(find_modules_by_class "0c03"); do
  61                         find_module "$m"
  62                 done
  63
  64                 for m in $modules; do
  65                         find_module "-$m"
  66                 done
  67         fi
  68 }