add helper function to open socketcan by name

src/adapter.rs

@@ -1,8 +1,5 @@
 //! Convenience functions to get a CAN adapter.
 
-#[cfg(target_os = "linux")]
-use socketcan::Socket;
-
 /// Convenience function to get the first available adapter on the system. Supports both comma.ai panda, and SocketCAN.
 pub fn get_adapter() -> Result<crate::async_can::AsyncCanAdapter, crate::error::Error> {
     if let Ok(panda) = crate::panda::Panda::new_async() {
@@ -12,8 +9,8 @@ pub fn get_adapter() -> Result<crate::async_can::AsyncCanAdapter, crate::error::
     #[cfg(target_os = "linux")]
     {
         // TODO: iterate over all available SocketCAN adapters to also find things like vcan0
-        if let Ok(socket) = socketcan::CanFdSocket::open("can0") {
-            return Ok(crate::socketcan::SocketCan::new_async(socket).unwrap());
+        if let Ok(socket) = crate::socketcan::SocketCan::new_async_from_name("can0") {
+            return Ok(socket);
         }
     }
 

src/socketcan/mod.rs

@@ -22,6 +22,14 @@ impl SocketCan {
         Self { socket }
     }
 
+    pub fn new_async_from_name(name: &str) -> Result<AsyncCanAdapter, Error> {
+        if let Ok(socket) = socketcan::CanFdSocket::open(name) {
+            SocketCan::new_async(socket)
+        } else {
+            Err(crate::error::Error::NotFound)
+        }
+    }
+
     pub fn new_async(socket: socketcan::CanFdSocket) -> Result<AsyncCanAdapter, Error> {
         let socket = SocketCan::new(socket);
 

tests/adapter_tests.rs

@@ -87,8 +87,6 @@ fn socketcan_bulk_send_sync() {
 #[tokio::test]
 #[serial_test::serial]
 async fn socketcan_bulk_send_async() {
-    use socketcan::Socket;
-    let socket = socketcan::CanFdSocket::open("can0").unwrap();
-    let adapter = automotive::socketcan::SocketCan::new_async(socket).unwrap();
+    let adapter = automotive::socketcan::SocketCan::new_async_from_name("can0").unwrap();
     bulk_send(&adapter).await;
 }