software: Implement serial port detection

1 files changed, 15 insertions, 0 deletions

diff --git a/software/vendor/go.bug.st/serial/serial_bsd.go b/software/vendor/go.bug.st/serial/serial_bsd.go
new file mode 100644
index 0000000..fb7c849
--- /dev/null
+++ b/software/vendor/go.bug.st/serial/serial_bsd.go
@@ -0,0 +1,15 @@
+//
+// Copyright 2014-2023 Cristian Maglie. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+
+//go:build darwin || dragonfly || freebsd || netbsd || openbsd
+
+package serial
+
+import "golang.org/x/sys/unix"
+
+func (port *unixPort) Drain() error {
+	return unix.IoctlSetInt(port.handle, unix.TIOCDRAIN, 0)
+}