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-rw-r--r--keyboards/lets_split/rules.mk10
1 files changed, 6 insertions, 4 deletions
diff --git a/keyboards/lets_split/rules.mk b/keyboards/lets_split/rules.mk
index 0dc5491302..0efa785505 100644
--- a/keyboards/lets_split/rules.mk
+++ b/keyboards/lets_split/rules.mk
@@ -76,10 +76,12 @@ CUSTOM_MATRIX = yes
avrdude: build
ls /dev/tty* > /tmp/1; \
- echo "Reset your Pro Micro then hit any key to continue..."; \
- read -n 1 -s; \
- ls /dev/tty* > /tmp/2; \
- USB=`diff /tmp/1 /tmp/2 | grep '>' | sed -e 's/> //'`; \
+ echo "Reset your Pro Micro now"; \
+ while [[ -z $$USB ]]; do \
+ sleep 1; \
+ ls /dev/tty* > /tmp/2; \
+ USB=`diff /tmp/1 /tmp/2 | grep -o '/dev/tty.*'`; \
+ done; \
avrdude -p $(MCU) -c avr109 -P $$USB -U flash:w:$(BUILD_DIR)/$(TARGET).hex
.PHONY: avrdude