Contents of /trunk/busybox/usbdev.sh
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Revision 1233 -
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Fri Dec 10 22:49:20 2010 UTC (13 years, 5 months ago) by niro
File MIME type: application/x-sh
File size: 1648 byte(s)
Fri Dec 10 22:49:20 2010 UTC (13 years, 5 months ago) by niro
File MIME type: application/x-sh
File size: 1648 byte(s)
-tuned mdev.conf and process uevents (need initscripts with trigger_uevent support) -added mdev helpers -added rc script for syslogd, needed by dropbear
| 1 | #!/bin/sh |
| 2 | |
| 3 | # script is buggy; until patched just do exit 0 |
| 4 | #exit 0 |
| 5 | |
| 6 | # add zeros to device or bus |
| 7 | add_zeros () { |
| 8 | case "$(echo $1 | wc -L)" in |
| 9 | 1) echo "00$1" ;; |
| 10 | 2) echo "0$1" ;; |
| 11 | *) echo "$1" |
| 12 | esac |
| 13 | exit 0 |
| 14 | } |
| 15 | |
| 16 | |
| 17 | # bus and device dirs in /sys |
| 18 | local USB_PATH=$(echo $MDEV | sed -e 's/usbdev\([0-9]\).[0-9]/usb\1/') |
| 19 | USB_PATH=$(find /sys/devices -type d -name "$USB_PATH") |
| 20 | local USB_DEV_DIR=$(echo $MDEV | sed -e 's/usbdev\([0-9]\).\([0-9]\)/\1-\2/') |
| 21 | |
| 22 | # dir names in /dev |
| 23 | local BUS=$(add_zeros $(echo $MDEV | sed -e 's/^usbdev\([0-9]\).[0-9]/\1/')) |
| 24 | local USB_DEV=$(add_zeros $(echo $MDEV | sed -e 's/^usbdev[0-9].\([0-9]\)/\1/')) |
| 25 | |
| 26 | |
| 27 | # try to load the proper driver for usb devices |
| 28 | case "$ACTION" in |
| 29 | add|"") |
| 30 | # load usb bus driver |
| 31 | for i in $USB_PATH/*/modalias ; do |
| 32 | modprobe `cat $i` 2>/dev/null |
| 33 | done |
| 34 | # load usb device driver if existent |
| 35 | if [ -d $USB_PATH/$USB_DEV_DIR ]; then |
| 36 | for i in $USB_PATH/$USB_DEV_DIR/*/modalias ; do |
| 37 | modprobe `cat $i` 2>/dev/null |
| 38 | done |
| 39 | fi |
| 40 | # move usb device file |
| 41 | mkdir -p bus/usb/$BUS |
| 42 | mv $MDEV bus/usb/$BUS/$USB_DEV |
| 43 | ;; |
| 44 | remove) |
| 45 | # unload device driver, if device dir is existent |
| 46 | if [ -d $USB_PATH/$USB_DEV_DIR ]; then |
| 47 | for i in $USB_PATH/$USB_DEV_DIR/*/modalias ; do |
| 48 | modprobe -r `cat $i` 2>/dev/null |
| 49 | done |
| 50 | fi |
| 51 | # unload usb bus driver. Does this make sense? |
| 52 | # what happens, if two usb devices are plugged in |
| 53 | # and one is removed? |
| 54 | for i in $USB_PATH/*/modalias ; do |
| 55 | modprobe -r `cat $i` 2>/dev/null |
| 56 | done |
| 57 | # remove device file and possible empty dirs |
| 58 | rm -f bus/usb/$BUS/$USB_DEV |
| 59 | rmdir bus/usb/$BUS/ 2>/dev/null |
| 60 | rmdir bus/usb/ 2>/dev/null |
| 61 | rmdir bus/ 2>/dev/null |
| 62 | esac |