Improve documentation

Author: eldruin

src/cdev_pin.rs

@@ -1,4 +1,6 @@
-//! Linux CDev pin type
+//! Implementation of [`embedded-hal`] digital input/output traits using a Linux CDev pin
+//!
+//! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 /// Newtype around [`gpio_cdev::LineHandle`] that implements the `embedded-hal` traits
 ///

src/i2c.rs

@@ -1,4 +1,6 @@
-//! `embedded-hal` I2C traits implementation
+//! Implementation of [`embedded-hal`] I2C traits
+//!
+//! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 use std::ops;
 use std::path::{Path, PathBuf};

src/serial.rs

@@ -1,4 +1,6 @@
-//! Implementation of [`Serial`](https://docs.rs/embedded-hal/0.2.1/embedded_hal/serial/index.html)
+//! Implementation of [`embedded-hal`] serial traits
+//!
+//! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 use nb;
 use serial_core;

src/sysfs_pin.rs

@@ -1,4 +1,6 @@
-//! Linux Sysfs pin type
+//! Implementation of [`embedded-hal`] digital input/output traits using a Linux Sysfs pin
+//!
+//! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 use std::path::Path;
 

src/timer.rs

@@ -1,4 +1,6 @@
-//! Timers.
+//! Implementation of [`embedded-hal`] timer traits
+//!
+//! [`embedded-hal`]: https://docs.rs/embedded-hal
 
 use core::convert::Infallible;
 use std::time::{Duration, Instant};