--- brltty-6.0/Autostart/Udev/rules
+++ brltty-6.0/Autostart/Udev/rules
@@ -276,20 +276,22 @@
 # FreedomScientific [Focus Blue]
 ENV{PRODUCT}=="f4e/114/*", ENV{BRLTTY_BRAILLE_DRIVER}="fs", GOTO="brltty_usb_run"
 
+# Seika rules are commented out, because they conflict with USB-to-serial
+# converters.
 # Device: 10C4:EA60
 # Generic Identifier
 # Vendor: Cygnal Integrated Products, Inc.
 # Product: CP210x UART Bridge / myAVR mySmartUSB light
 # BrailleMemo [Pocket]
 # Seika [Braille Display]
-ENV{PRODUCT}=="10c4/ea60/*", ENV{BRLTTY_BRAILLE_DRIVER}="mm,sk", GOTO="brltty_usb_run"
+#ENV{PRODUCT}=="10c4/ea60/*", ENV{BRLTTY_BRAILLE_DRIVER}="mm,sk", GOTO="brltty_usb_run"
 
 # Device: 10C4:EA80
 # Generic Identifier
 # Vendor: Cygnal Integrated Products, Inc.
 # Product: CP210x UART Bridge
 # Seika [Note Taker]
-ENV{PRODUCT}=="10c4/ea80/*", ENV{BRLTTY_BRAILLE_DRIVER}="sk", GOTO="brltty_usb_run"
+#ENV{PRODUCT}=="10c4/ea80/*", ENV{BRLTTY_BRAILLE_DRIVER}="sk", GOTO="brltty_usb_run"
 
 # Device: 1148:0301
 # BrailleMemo [Smart]