Merge remote-tracking branch 'origin/rc' into fix-17421

source/brailleDisplayDrivers/brailliantB.py

@@ -190,11 +190,27 @@ def __init__(self, port="auto"):
 
 	def _initAttempt(self):
 		if self.isHid:
+			# Ensure to set self.numCells only at the end of this method to prevent display writes before the capabilities/numCells request
+			numCells = 0
+			# First try to get cell count from _writeSize
+			try:
+				# _writeSize includes 4 bytes of overhead, so subtract 4
+				numCells = self._dev._writeSize - 4
+			except AttributeError:
+				log.debugWarning("Could not get _writeSize from HID device")
+
+			# Adjust numCells based on reported number of cells
 			try:
 				data: bytes = self._dev.getFeature(HR_CAPS)
+				reportedNumCells = data[24]
+				if reportedNumCells > 0:
+					# Update numCells based on reported cell count from the device
+					numCells = reportedNumCells
+				else:
+					log.debugWarning("Could not get number of cells from HID device using HR_CAPS")
 			except WindowsError:
 				return  # Fail!
-			self.numCells = data[24]
+			self.numCells = numCells
 		else:
 			# This will cause the display to return the number of cells.
 			# The _serOnReceive callback will see this and set self.numCells.

source/buildVersion.py

@@ -65,7 +65,7 @@ def formatVersionForGUI(year, major, minor):
 name = "NVDA"
 version_year = 2024
 version_major = 4
-version_minor = 1
+version_minor = 2
 version_build = 0  # Should not be set manually. Set in 'sconscript' provided by 'appVeyor.yml'
 version = _formatDevVersionString()
 publisher = "unknown"

user_docs/en/changes.md

@@ -2,11 +2,12 @@
 
 ## 2024.4.2
 
-This is a patch release to fix a bug with reading math in Chromium Browsers (Chrome, Edge).
+This is a patch release to release bugs with reading math in Chromium, and braille devices.
 
 ### Bug fixes
 
 * Fixed bug with with reading math in Chromium Browsers (Chrome, Edge). (#17421, @NSoiffer)
+* Humanware Brailliant BI 40X devices running firmware version 2.4 now work as expected. (#17518, @bramd)
 
 ## 2024.4.1