From 257350e1a3e4ba2048e80d30a4a0454eb65d4a26 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Tue, 1 May 2018 23:47:27 -0700
Subject: [PATCH] ao-bringup/turnon_telemini: Skip DFU if no DFU device is
 present

This skips running dfu-util to load the bootloader if there isn't a
suitable DFU device listed in the system, which allows an
already-flashed device to be run through the same script.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 ao-bringup/turnon_telemini | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ao-bringup/turnon_telemini b/ao-bringup/turnon_telemini
index 23031481..678251f4 100755
--- a/ao-bringup/turnon_telemini
+++ b/ao-bringup/turnon_telemini
@@ -45,9 +45,11 @@ ALTOS_FILE=~/altusmetrumllc/Binaries/telemini-v$VERSION-*.elf
 #FLASH_FILE=../src/telemini-v3.0/flash-loader/telemini-v$VERSION-altos-flash-*.bin
 #ALTOS_FILE=../src/telemini-v3.0/telemini-v$VERSION-*.elf
 
-$DFU_UTIL -a 0 -s 0x08000000:leave -D $FLASH_FILE || exit 1
+if lsusb -d 0483:df11 | grep -q STM; then
+    $DFU_UTIL -a 0 -s 0x08000000:leave -D $FLASH_FILE || exit 1
 
-sleep 2
+    sleep 2
+fi
 
 $USBLOAD --serial=$SERIAL $ALTOS_FILE || exit 1
 
-- 
2.30.2