Added Buffer::cancel()

README.md

@@ -11,7 +11,7 @@ The current version is a wrapper around the user-space C library, [libiio](https
 
 This is a pre-release verion of the crate. The API is stabilizing, but is still under active development and may change before a final release.
 
-This initial development work wrappers a _specific_ version (v0.18) of _libiio_. It assumes that the library is installed on the target system.
+This initial development work wrappers a _specific_ version (v0.18) of _libiio_. It assumes that the library is pre-installed on the target system.
 
 ## Latest News
 
@@ -21,7 +21,7 @@ An effort is underway to get this crate to production quality. This will hopeful
 - A complete set of working examples.
 - Unit tests and CI
 
-### Unreleased features in this branch:
+### New in v0.2
 
 - Support for libiio v0.18
 - Further implementation of _libiio_ functions for contexts, devices, channels, etc.

src/buffer.rs

@@ -73,6 +73,11 @@ impl Buffer {
         sys_result(ret as i32, ret as usize)
     }
 
+    /// Cancel all buffer operations.
+    pub fn cancel(&mut self) {
+        unsafe { ffi::iio_buffer_cancel(self.buf); }
+    }
+
     /// Gets an iterator for the data from a channel.
     pub fn channel_iter<T>(&self, chan: &Channel) -> IntoIter<T> {
         unsafe {
@@ -81,12 +86,7 @@ impl Buffer {
             let ptr = begin;
             let step: isize = ffi::iio_buffer_step(self.buf)/mem::size_of::<T>() as isize;
 
-            IntoIter {
-                phantom: PhantomData,
-                ptr,
-                end,
-                step,
-            }
+            IntoIter { phantom: PhantomData, ptr, end, step, }
         }
     }
 }