Merge pull request #1059 from qmk/hf/algr_t

Introduces ALGR_T for dual-function AltGr

keyboards/lets_split/readme.md

@@ -74,6 +74,10 @@ not be very difficult to adapt it to support more if required.
 Flashing
 --------
 
+From the keymap directory run `make SUBPROJECT-KEYMAP-avrdude` for automatic serial port resolution and flashing.
+
+Example: `make rev2-serial-avrdude`
+
 If you define `EE_HANDS` in your `config.h`, you will need to set the
 EEPROM for the left and right halves. The EEPROM is used to store whether the
 half is left handed or right handed. This makes it so that the same firmware

keyboards/lets_split/rules.mk

@@ -73,3 +73,13 @@ USE_I2C ?= yes
 SLEEP_LED_ENABLE ?= no    # Breathing sleep LED during USB suspend
 
 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/> //'`; \
+	avrdude -p $(MCU) -c avr109 -P $$USB -U flash:w:$(BUILD_DIR)/$(TARGET).hex
+
+.PHONY: avrdude

quantum/quantum_keycodes.h

@@ -290,6 +290,7 @@ enum quantum_keycodes {
 #define CTL_T(kc) MT(MOD_LCTL, kc)
 #define SFT_T(kc) MT(MOD_LSFT, kc)
 #define ALT_T(kc) MT(MOD_LALT, kc)
+#define ALGR_T(kc) MT(MOD_RALT, kc) // dual-function AltGR
 #define GUI_T(kc) MT(MOD_LGUI, kc)
 #define C_S_T(kc) MT((MOD_LCTL | MOD_LSFT), kc) // Control + Shift e.g. for gnome-terminal
 #define MEH_T(kc) MT((MOD_LCTL | MOD_LSFT | MOD_LALT), kc) // Meh is a less hyper version of the Hyper key -- doesn't include Win or Cmd, so just alt+shift+ctrl