Annotation 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 | niro | 1233 | #!/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 |