boards/esp32s*-devkit: add TTY board filter

When using `make flash` or `make term` with `MOST_RECENT_PORT=1`, RIOT should now only consider plausible TTYs and select the most recently connected one. The filter is a bit broad, though, and will match any board with a CP2102N USB2UART bridge. But depending on the boards attached, it might be good enough to reliably tell it apart from other boards.
RIOT-OS · Dec 6, 2023 · 0809bda · 0809bda
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diff --git a/boards/esp32s2-devkit/Makefile.include b/boards/esp32s2-devkit/Makefile.include
@@ -6,3 +6,7 @@ PSEUDOMODULES += esp32s2_saola_1
 PSEUDOMODULES += esp32s2_saola_1r
 
 include $(RIOTBOARD)/common/esp32s2/Makefile.include
+
+# Only consider TTYs matching the following filter when auto-selecting the TTY
+# with `MOST_RECENT_PORT=1`.
+TTY_BOARD_FILTER := --driver 'cp210x' --vendor 'Silicon Labs' --model 'CP2102N USB to UART Bridge Controller'
diff --git a/boards/esp32s3-devkit/Makefile.include b/boards/esp32s3-devkit/Makefile.include
@@ -10,3 +10,7 @@ PSEUDOMODULES += esp32s3_devkitm_1_n8r8
 PSEUDOMODULES += esp32s3_devkitm_1u_n8r8
 
 include $(RIOTBOARD)/common/esp32s3/Makefile.include
+
+# Only consider TTYs matching the following filter when auto-selecting the TTY
+# with `MOST_RECENT_PORT=1`.
+TTY_BOARD_FILTER := --driver 'cp210x' --vendor 'Silicon Labs' --model 'CP2102N USB to UART Bridge Controller'