Hi Greg, Randy, Attached a modified version of the usb-devices.sh script. The change is that I removed almost all the directory changes, which gives some speedup (~5%) and IMHO also simplifies the code. Attached both my version and a patch relative to the script as attached in http://article.gmane.org/gmane.linux.usb.general/16828. I plan to use a modified version of the script in Debian Installer. We currently cat /proc/bus/usb/devices into a hardware-summary file we create for troubleshooting purposes. I prefer using the script over mounting debugfs in the installer. I'll mention you both as authors of the script. Cheers, FJP
Attachment:
usb-devices.sh
Description: application/shellscript
--- usb-devices.sh.sv 2009-06-18 00:40:19.000000000 +0200
+++ usb-devices.sh 2009-06-18 00:58:02.000000000 +0200
@@ -48,42 +48,37 @@
}
print_endpoint() {
- endpoint=$1
+ local eppath=$1
if [ "$debug" = "1" ]; then
- echo "endpoint=$endpoint"
+ echo "procesing endpoint=$eppath"
fi
- addr=`cat $endpoint/bEndpointAddress`
- attr=`cat $endpoint/bmAttributes`
- dir=`cat $endpoint/direction`
- eptype=`cat $endpoint/type`
- maxps=`cat $endpoint/wMaxPacketSize`
- interval=`cat $endpoint/interval`
+ addr=`cat $eppath/bEndpointAddress`
+ attr=`cat $eppath/bmAttributes`
+ dir=`cat $eppath/direction`
+ eptype=`cat $eppath/type`
+ maxps=`cat $eppath/wMaxPacketSize`
+ interval=`cat $eppath/interval`
printf "E: Ad=%s(%s) Atr=%s(%s) MxPS=%s Ivl=%s\n" \
$addr $dir $attr $eptype $maxps $interval
}
print_interface() {
- interface=$1
- local cwd
+ local ifpath=$1
- cwd=`/bin/pwd`
- cd $interface
if [ "$debug" = "1" ]; then
- echo "cd to interface=$interface"
- echo -n "pwd="
- /bin/pwd
+ echo "processing interface=$ifpath"
fi
- ifnum=`cat bInterfaceNumber`
- altset=`cat bAlternateSetting`
- numeps=`cat bNumEndpoints`
- class=`cat bInterfaceClass`
- subclass=`cat bInterfaceSubClass`
- protocol=`cat bInterfaceProtocol`
- if [ -L driver ]; then # v4: allow for no driver
- driver=`readlink driver`
+ ifnum=`cat $ifpath/bInterfaceNumber`
+ altset=`cat $ifpath/bAlternateSetting`
+ numeps=`cat $ifpath/bNumEndpoints`
+ class=`cat $ifpath/bInterfaceClass`
+ subclass=`cat $ifpath/bInterfaceSubClass`
+ protocol=`cat $ifpath/bInterfaceProtocol`
+ if [ -L $ifpath/driver ]; then # v4: allow for no driver
+ driver=`readlink $ifpath/driver`
driver=`basename $driver`
else
driver="(none)"
@@ -92,33 +87,24 @@
printf "I: If#=%s Alt=%s #EPs=%s Cls=%s(%s) Sub=%s Prot=%s Driver=%s\n" \
$ifnum $altset $numeps $class $classname $subclass $protocol $driver
- ##for endpoint in $interface/ep_??
- for endpoint in ep_??
+ for endpoint in $ifpath/ep_??
do
if [ -L $endpoint ]; then # v4: verify endpoint exists
print_endpoint $endpoint
fi
done
-
- if [ "$debug" = "1" ]; then
- echo "cd back to cwd=$cwd"
- fi
- cd $cwd
}
print_device() {
- device=$1
- local cwd
+ local devpath=$1
- cwd=`/bin/pwd`
- cd $device
+ cd $devpath
if [ "$debug" = "1" ]; then
- echo "cd to device=$device"
- echo -n "pwd="
- /bin/pwd
+ echo "cd to device=$devpath"
fi
- busnum=`cat busnum`
+ local busnum=`cat busnum`
+
devnum=`cat devnum`
speed=`cat speed`
maxchild=`cat maxchild`
@@ -163,29 +149,23 @@
for endpoint in ep_??
do
- print_endpoint $endpoint
+ print_endpoint $devpath/$endpoint
done
for interface in *:?.*
do
- print_interface $interface
+ print_interface $devpath/$interface
done
- busnum=`cat busnum`
for subdev in $busnum-? $busnum-?? $busnum-???
do
- if [ -d $subdev ]; then
+ if [ -d $devpath/$subdev ]; then
if [ "$debug" = "1" ]; then
echo "try subdev=$subdev"
fi
- print_device $subdev
+ print_device $devpath/$subdev
fi
done
-
- if [ "$debug" = "1" ]; then
- echo "cd back to cwd=$cwd"
- fi
- cd $cwd
}
debug=
@@ -195,7 +175,7 @@
fi
##print_device /sys/bus/usb/devices/usb1
-for dev in /sys/bus/usb/devices/usb*
+for device in /sys/bus/usb/devices/usb*
do
- print_device $dev
+ print_device $device
done
