add -v option to usb/probe.  tired of looking up usb ids by hand.
this is wrong for endpoints with many vid / did combos, but better than
nothing.

Reference: /n/atom/patch/applied/usbprobev
Date: Wed Apr 23 22:48:43 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/usb/probe	Wed Apr 23 22:47:29 2014
+++ /sys/src/cmd/usb/probe	Wed Apr 23 22:47:29 2014
@@ -6,10 +6,61 @@
 	exit nousb
 }
 
+fn verbose {
+	if (! test -f /lib/pci)
+		echo $0: no /lib/pci >[1=2]
+	awk '
+
+	BEGIN{
+		file="/lib/usb"
+		FS="\t"
+		while(getline <file > 0){
+			if(/^[#;]/) continue
+			if(/^[0-9A-Fa-f]/){
+				vid=$1
+				vendor[vid] = $2
+			}
+			if(/^	[0-9A-Fa-f]/){
+				did=$2
+				id[vid "/" did] = $3
+			}
+		}
+		FS = " "
+	}
+
+	{
+		print $0
+		vid = ""
+		did = ""
+		for(i = 1; i <= NF; i++){
+			if($i == "vid"){
+				vid = $(i+1)
+				sub(/^0x/, "", vid)
+			}
+			if($i == "did"){
+				did = $(i+1)
+				sub(/^0x/, "", did)
+			}
+		}
+		if(vid in vendor){
+			s = vendor[vid]
+			if(vid "/" did in id)
+				s = s " " id[vid "/" did]
+			print "\t" s
+		}
+	}
+'
+}
+
 filter = cat
-if (~ $1 -h)
+if (~ $1 -h){
 	filter = (grep -v ' (root)?hub ')
-
+	shift
+}
+if(~ $1 -v){
+	filter = verbose
+	shift
+}
 awk 'BEGIN	{ ep = "" }
 $1 ~ /ep[0-9]+\.0/ && $2 == "enabled" && $NF ~ /busy|idle/ {
 	ep=$1
--- /386/bin/usb/probe	Wed Apr 23 22:47:29 2014
+++ /386/bin/usb/probe	Wed Apr 23 22:47:29 2014
@@ -6,10 +6,61 @@
 	exit nousb
 }
 
+fn verbose {
+	if (! test -f /lib/pci)
+		echo $0: no /lib/pci >[1=2]
+	awk '
+
+	BEGIN{
+		file="/lib/usb"
+		FS="\t"
+		while(getline <file > 0){
+			if(/^[#;]/) continue
+			if(/^[0-9A-Fa-f]/){
+				vid=$1
+				vendor[vid] = $2
+			}
+			if(/^	[0-9A-Fa-f]/){
+				did=$2
+				id[vid "/" did] = $3
+			}
+		}
+		FS = " "
+	}
+
+	{
+		print $0
+		vid = ""
+		did = ""
+		for(i = 1; i <= NF; i++){
+			if($i == "vid"){
+				vid = $(i+1)
+				sub(/^0x/, "", vid)
+			}
+			if($i == "did"){
+				did = $(i+1)
+				sub(/^0x/, "", did)
+			}
+		}
+		if(vid in vendor){
+			s = vendor[vid]
+			if(vid "/" did in id)
+				s = s " " id[vid "/" did]
+			print "\t" s
+		}
+	}
+'
+}
+
 filter = cat
-if (~ $1 -h)
+if (~ $1 -h){
 	filter = (grep -v ' (root)?hub ')
-
+	shift
+}
+if(~ $1 -v){
+	filter = verbose
+	shift
+}
 awk 'BEGIN	{ ep = "" }
 $1 ~ /ep[0-9]+\.0/ && $2 == "enabled" && $NF ~ /busy|idle/ {
 	ep=$1