From bc481d1468f5a09de8b4683d8e2cbed36b17b26c Mon Sep 17 00:00:00 2001
From: Shane <shane.murphy@umbra.space>
Date: Sun, 10 Mar 2024 00:15:11 -0800
Subject: [PATCH] Allow constructing a SerialStream from a TTYPort

There was already an implementation in mio_serial that allowed fallible
conversions from a TTYPort, this just exposes that in tokio-serial.
---
 Cargo.toml |  4 ++++
 src/lib.rs | 13 +++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index ec7270a..ab050cd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,6 +49,10 @@ version = "0.4"
 [dependencies.cfg-if]
 version = "1"
 
+[dependencies.serialport]
+version = "4"
+default-features = false
+
 [dev-dependencies.tokio]
 version = "^1.8"
 features = ["macros", "rt", "process", "time", "fs", "io-util"]
diff --git a/src/lib.rs b/src/lib.rs
index 82ce330..8031e9a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,6 +15,7 @@ pub use mio_serial::{
 
 use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
 
+use std::convert::TryFrom;
 use std::io::{Read, Result as IoResult, Write};
 use std::pin::Pin;
 use std::task::{Context, Poll};
@@ -488,6 +489,18 @@ impl Write for SerialStream {
     }
 }
 
+#[cfg(unix)]
+impl TryFrom<serialport::TTYPort> for SerialStream {
+    type Error = Error;
+
+    fn try_from(value: serialport::TTYPort) -> std::result::Result<Self, Self::Error> {
+        let port = mio_serial::SerialStream::try_from(value)?;
+        Ok(Self {
+            inner: AsyncFd::new(port)?,
+        })
+    }
+}
+
 #[cfg(unix)]
 mod sys {
     use super::SerialStream;