Changed: formatting, version output

lsusb

@@ -5,7 +5,7 @@
 # Disclaimer: usage info and functionality from lsusb under Linux
 
 verbose () { system_profiler SPUSBDataType; }
-version () { echo "lsusb (usbutils) 007"; }
+version () { echo "lsusb for Mac OS X"; }
 help ()  {
   cat >&2 <<EOM
 $(usage)
@@ -30,7 +30,7 @@ parse ()  {
 	# Trim the string at the end
 	name=`echo $device | head -2 | egrep ":$"  | sed -e 's/^ *//g' -e 's/ *:$//g'`
 
-	#get the speed
+	# Get the speed
 	speed=`echo $device | egrep "Speed: " | awk -F':' '{print $2}' | sed 's/^ *Up to //g; s/ *$//; s/b\/sec$//; s/ //g'`
 	# Get the PID, trim at the end
 	PID=`echo $device | egrep "Product ID" | awk -F':' '{print $2}' | sed -e 's/0x//; s/^ *//g' -e 's/ *$//g'`
@@ -41,18 +41,18 @@ parse ()  {
 	# Get the manufacturer string
 	manufacturer=`echo $VID_all | cut -d ' ' -f 2- | sed 's/^ *//; s/ *$//'`
 
-	#get the Location Id
+	# Get the Location Id
 	location=`echo $device | egrep "Location ID" | sed -e 's/Location ID://; s/^ *//g; s/ *$//g;'`
 
 	# Get the bus number. It's the first two hex digits of the Location ID
 	# we'll convert to decimal later
-	bus_num=`echo $location |  sed -e 's/^..\(..\).*/\1/;'` 
+	bus_num=`echo $location |  sed -e 's/^..\(..\).*/\1/;'`
 
 	# Get the device number. It's after the '/' in the Location ID, already decimal
 	device_num=`echo $location | awk -F'/' '{print $2}'`
 	device_num=`printf "%0*d" 3 $device_num`
 
-	#strip off the excess from LocationID for sorting tree
+	# Strip off the excess from LocationID for sorting tree
 	locationID=`echo $location | awk -F'/' '{print $1}'`
 
 	# Special case for "root hub" - follow the (faked) Linux standard
@@ -74,12 +74,12 @@ parse ()  {
 		esac
 	fi
 
-	#convert bus number from hexadecimal to decimal
+	# Convert bus number from hexadecimal to decimal
 	bus_num=`echo "$((16#$bus_num))"`
         bus_num=`printf "%0*d" 3 $bus_num`
 
-	#strip the parentheses from manufacturer name unless so specified
-	if [ -z $parens ]; then	
+	# Strip the parentheses from manufacturer name unless it is specified
+	if [ -z $parens ]; then
 	 	manufacturer=`echo $manufacturer | sed 's/(//; s/)//'`
 	fi
 
@@ -90,17 +90,16 @@ parse ()  {
 		serial_str=" Serial: $serial_number"
 	fi
 
-
-	# don't filter if we're building the tree
+	# Don't filter if we're building the tree
 	if [ "$treeflag" == "yes" ]; then
 		exitcode=0
-		return 
+		return
 	fi
 
 	# Filter by VID/PID if given as input argument
 	if [ -n "$vid_pid" ]; then
 	# Convert input vid to lower case
-	   if [ -n "$(echo $vid_pid | egrep ':')" ]; then 
+	   if [ -n "$(echo $vid_pid | egrep ':')" ]; then
 		arg_vid=`echo $vid_pid | awk -F':' '{print $1}' | sed 's/^0x//' | tr '[A-Z]' '[a-z]'`
 		if [ -n "$arg_vid" ]; then
 			if [ $((16#$arg_vid)) -ne $((16#$VID)) ]; then
@@ -114,23 +113,23 @@ parse ()  {
 			fi
 		fi
 	   else
-		#missing a colon is a syntax error after -d
-    		help 
+		# Missing a colon is a syntax error after -d
+    		help
 		exit 1
 	   fi
 	fi
 
 	# Filter by BUS/DEV if given as input argument
 	if [ -n "$bus_dev" ]; then
-	    if [ -n "$(echo $bus_dev | egrep ':')" ]; then 
+	    if [ -n "$(echo $bus_dev | egrep ':')" ]; then
 		# Convert input bus to lower case
 		arg_bus=`echo $bus_dev | awk -F':' '{print $1}' | sed 's/^ *//; s/ *$//'`
 		if [ -n "$arg_bus" ]; then
 			if [ $arg_bus -ne $bus_num ]; then
 				return 1
 			fi
 		fi
-		# strip leading and trailing spaces from argument
+		# Strip leading and trailing spaces from argument
 		arg_dev=`echo $bus_dev | awk -F':' '{print $2}' | sed 's/^ *//; s/ *$//'`
 		if [ -n "$arg_dev" ]; then
 			if [ $arg_dev -ne $device_num ]; then
@@ -139,8 +138,8 @@ parse ()  {
 		fi
 	    fi
 	fi
-	#special case: no colon after -s means device-only
-	if [ -z "$(echo $bus_dev | egrep ':')" ]; then 
+	# Special case: no colon after -s means device-only
+	if [ -z "$(echo $bus_dev | egrep ':')" ]; then
 	# strip leading and trailing spaces from argument
 		arg_dev=`echo $bus_dev | sed 's/^ *//; s/ *$//'`
 		if [ -n "$arg_dev" ]; then
@@ -150,93 +149,92 @@ parse ()  {
 		fi
 	fi
 
-	#if we got this far, we found a match, so set exit code to 0
+	# If we got this far, we found a match, so set exit code to 0
 	exitcode=0
 }
 
 setup () {
-#save the data
-if [ -z $rawlog ]; then
-	rawlog=$(verbose)
-fi
-
+	# Save the data
+	if [ -z $rawlog ]; then
+		rawlog=$(verbose)
+	fi
 
-# Change the IFS to #, backup the current one
-OIFS=$IFS
-IFS="#"
-exitcode=1
-treeflag="no"
+	# Change the IFS to #, backup the current one
+	OIFS=$IFS
+	IFS="#"
+	exitcode=1
+	treeflag="no"
 }
 
 cleanup () {
-IFS=$OIFS
-exit $exitcode
+	IFS=$OIFS
+	exit $exitcode
 }
 
 buildtreeline () {
-# build a formatted line to be sorted for the tree
-# the LocationID has the tree structure (0xbbdddddd):
+# Build a formatted line to be sorted for the tree.
+# The LocationID has the tree structure (0xbbdddddd):
 #   0x  -- always
 #   bb  -- bus number in hexadecimal
 #   dddddd -- up to six levels for the tree, each digit represents its
 #             position on that level
-# 
+#
 # so we start each line with the LocationID for sorting purposes,
 # then append the rest of the line as we want it
-# Later, we'll do the sort, then strip off the LocationID for display purposes
+# Later, we'll do the sort, then strip off the LocationID for display purposes.
 
 	spaces=`echo $locationID | sed 's/^0x...//; s/0//g; s/./ /g; s/.*/&&&&/'`
 	if [ ${#spaces} -eq 0 ]; then
 		spaces=" /:  "
 	else
-		#weird syntax because we have one space too many
+		# Weird syntax because we have one space too many
 		spaces="${spaces}|__ "
 	fi
 	treeline="${locationID}${spaces}Bus ${bus_num}.Dev ${device_num}: ${name}, ${speed}"
 }
 
-tree () { 
-setup
-treeflag="yes"
+tree () {
+	setup
+	treeflag="yes"
+
+	devices=`echo $rawlog | egrep -B 2 -A 6 "Product ID" | sed 's/^--/#/'`
+	for device in $devices
+	do
+		# Skip null items
+		if [ "${#device}" -ne 1 ]; then
+			parse
+			buildtreeline
+			treedata="$treedata${treeline}\n"
+		fi
+	done
 
-devices=`echo $rawlog | egrep -B 2 -A 6 "Product ID" | sed 's/^--/#/'`
-for device in $devices
-do
-	#skip null items
-	if [ "${#device}" -ne 1 ]; then
+	buses=`echo $rawlog | egrep -A 7 "Bus:" | sed 's/^--/#/'`
+	for device in $buses
+	do
 		parse
 		buildtreeline
 		treedata="$treedata${treeline}\n"
-	fi
-done
+	done
 
-buses=`echo $rawlog | egrep -A 7 "Bus:" | sed 's/^--/#/'`
-for device in $buses
-do
-	parse
-	buildtreeline
-	treedata="$treedata${treeline}\n"
-done
+	# Strip off final \n
+	treedata=`echo ${treedata/%%?/}`
+	# Sort by Location ID
+	treedata=`echo ${treedata} | sort`
 
-#strip off final \n (weird syntax but it works)
-treedata=`echo ${treedata/%%?/}` 
-#sort by Location ID
-treedata=`echo ${treedata} | sort`
+	# Now strip off leading Location ID and print
+	for line in $treedata
+	do
+		echo $line | sed 's/^...........//'
+	done
 
-#Now strip off leading Location ID and print
-for line in $treedata
-do
-	echo $line | sed 's/^...........//'
-done
-
-# Restore the IFS
-cleanup
+	# Restore the IFS
+	cleanup
 
-#not really needed, as cleanup routine does the exit
-exit 0 
+	# Not really needed, as cleanup routine does the exit
+	exit 0
 }
 
-# Parse options 
+# Parse options
 while getopts ":hvpd:s:Vt" opt; do
   case "$opt" in
     h) help ; exit 0 ;;     # help

man/lsusb.8

@@ -1,4 +1,4 @@
-.TH lsusb 8 "21 Feb 2014" "usbutils-007" "USB Utilities"
+.TH lsusb 8 "21 Feb 2014" "lsusb for Mac OS X" "USB Utilities"
 .IX lsusb
 .SH NAME
 lsusb \- list USB devices