inputmodule-control: Ignore /dev/tty. on macOS

macOS has two instances of the serial console. /dev/tty.* and /dev/cu.*.
The former we can't use. Right now it'll select the wrong one by
default.

inputmodule-control/src/inputmodule.rs

@@ -90,6 +90,12 @@ fn match_serialdevs(
         // Find all supported Framework devices
         for p in ports {
             if let SerialPortType::UsbPort(usbinfo) = &p.port_type {
+                // macOS creates a /dev/cu.* and /dev/tty.* device.
+                // The latter can only be used for reading, not writing, so we have to ignore it.
+                #[cfg(target_os = "macos")]
+                if !p.port_name.starts_with("/dev/tty.") {
+                    continue;
+                }
                 if usbinfo.vid == FRAMEWORK_VID && pids.contains(&usbinfo.pid) {
                     compatible_devs.push(p.port_name.clone());
                 }