From 6cb27ab120ca72d9fc85c8295273a7cf43ca375b Mon Sep 17 00:00:00 2001
From: Hanno Braun <hanno@braun-robotics.com>
Date: Thu, 14 Sep 2017 07:44:09 +0200
Subject: [PATCH] Improve `Mutex` example

Fix some problems in the `Mutex` example. Please note that it still
doesn't compile, as it's obviously rather abstract and incomplete, in
order to demonstrate the principle.
---
 src/lib.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index d89cf7f..2d3f72a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -190,16 +190,21 @@
 //! implementation:
 //!
 //! ``` ignore
+//! extern crate embedded_hal as hal;
+//! extern crate nb;
+//!
 //! /// A synchronized serial interface
 //! // NOTE This is a global singleton
-//! pub struct Serial1;
+//! pub struct Serial1(Mutex<..>);
 //!
 //! // NOTE private
 //! static USART1: Mutex<_> = Mutex::new(..);
 //!
-//! impl hal::Serial for Serial {
-//!     fn read(&self) -> Result<u8, nb::Error<Error>> {
-//!         hal::Serial::read(&Serial(USART1.lock()))
+//! impl hal::serial::Read<u8> for Serial1 {
+//!     type Error = !;
+//!
+//!     fn read(&self) -> Result<u8, nb::Error<Self::Error>> {
+//!         hal::serial::Read::read(&Serial1(USART1.lock()))
 //!     }
 //! }
 //! ```