handle := defs in shared_bindings_matrix.py; update adafruit_hid

Author: dhalbert

docs/shared_bindings_matrix.py

@@ -155,7 +155,8 @@ def get_settings_from_makefile(port_dir, board_name):
 
     settings = {}
     for line in contents.stdout.split('\n'):
-        m = re.match(r'^([A-Z][A-Z0-9_]*) = (.*)$', line)
+        # Handle both = and := definitions.
+        m = re.match(r'^([A-Z][A-Z0-9_]*) :?= (.*)$', line)
         if m:
             settings[m.group(1)] = m.group(2)
 

frozen/Adafruit_CircuitPython_HID

@@ -332,8 +332,8 @@ CFLAGS += -DCIRCUITPY_UHEAP=$(CIRCUITPY_UHEAP)
 CIRCUITPY_USB ?= 1
 CFLAGS += -DCIRCUITPY_USB=$(CIRCUITPY_USB)
 
-# If you need to count endpoints, use:
-# $(shell expr $(USB_NUM_EP) '>=' 8)
+# Compute this value once, so the shell command is not reinvoked many times.
+USB_NUM_EP_8_OR_GREATER := $(shell expr $(USB_NUM_EP) '>=' 8)
 
 CIRCUITPY_USB_CDC ?= 1
 CFLAGS += -DCIRCUITPY_USB_CDC=$(CIRCUITPY_USB_CDC)
@@ -348,7 +348,7 @@ CIRCUITPY_USB_HID_ENABLED_DEFAULT = $(CIRCUITPY_USB_HID)
 CFLAGS += -DCIRCUITPY_USB_HID_ENABLED_DEFAULT=$(CIRCUITPY_USB_HID_ENABLED_DEFAULT)
 
 # MIDI is usually available if there are at least 8 endpoints.
-CIRCUITPY_USB_MIDI ?= $(shell expr $(USB_NUM_EP) '>=' 8)
+CIRCUITPY_USB_MIDI ?= $(USB_NUM_EP_8_OR_GREATER)
 CFLAGS += -DCIRCUITPY_USB_MIDI=$(CIRCUITPY_USB_MIDI)
 CIRCUITPY_USB_MIDI_ENABLED_DEFAULT = $(CIRCUITPY_USB_MIDI)
 CFLAGS += -DCIRCUITPY_USB_MIDI_ENABLED_DEFAULT=$(CIRCUITPY_USB_MIDI_ENABLED_DEFAULT)