From 585e0bcb012a6008af7d4a5ce6c694f78b936092 Mon Sep 17 00:00:00 2001
From: Bernhard Tittelbach <bernhard@tittelbach.org>
Date: Sun, 12 Jun 2016 06:37:30 +0200
Subject: better lufa detect and reset

---
 tools/detect_lufa_cdc |  9 +++++++++
 tools/reset_lufa_cdc  | 17 +++++++++--------
 2 files changed, 18 insertions(+), 8 deletions(-)
 create mode 100755 tools/detect_lufa_cdc

diff --git a/tools/detect_lufa_cdc b/tools/detect_lufa_cdc
new file mode 100755
index 0000000..2308ceb
--- /dev/null
+++ b/tools/detect_lufa_cdc
@@ -0,0 +1,9 @@
+#!/bin/zsh
+#(c) Bernhard Tittelbach
+
+LUFA_USB_SYSFS=(  /sys/bus/usb/devices/*/idVendor(e:'grep -q 03eb $REPLY'::h) )
+LUFA_CDC_DEVS=( ${^LUFA_USB_SYSFS}/*/tty/ttyACM*(:t) )
+
+[[ -n $1 ]] && print /dev/${LUFA_CDC_DEVS[$1]} || print /dev/${^LUFA_CDC_DEVS}
+
+exit 0
diff --git a/tools/reset_lufa_cdc b/tools/reset_lufa_cdc
index 09cc8cb..6529884 100755
--- a/tools/reset_lufa_cdc
+++ b/tools/reset_lufa_cdc
@@ -1,15 +1,16 @@
-#!/bin/bash
+#!/bin/zsh --multios
+#(c) Bernhard Tittelbach
 
-DEVICE_FILE="/dev/ttyACM0"
+LUFA_CDC_DEVS=($(${0:h}/detect_lufa_cdc))
 
-if [ -c $DEVICE_FILE ]; then
-    echo "resetting device .."
-    echo $1 > /dev/ttyACM0
+if [[ ${#LUFA_CDC_DEVS} -gt 0 ]]; then
+  echo "resetting device(s) $LUFA_CDC_DEVS ..."
+  echo $1 > ${LUFA_CDC_DEVS}
 
-    echo "waiting for device to enumerate .."
-    sleep 4
+  echo "waiting for device to enumerate .."
+  sleep 3
 else
-    echo "'$DEVICE_FILE' not found ... device is probably already in bootloader mode - doing nothing"
+  echo "LUFA ttyACMs not found ... device is probably already in bootloader mode - doing nothing"
 fi
 
 exit 0
-- 
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