io: remove adapters from main crate.

Author: Dirbaio

embedded-io/CHANGELOG.md

@@ -12,7 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `From` impls to convert between `ErrorKind` and `std::io::ErrorKind`.
 - Moved `embedded_io::blocking` to the crate root.
 - Split async traits to the `embedded-io-async` crate.
-- Split async trait adapters to separate crates.
+- Split trait adapters to the `embedded-io-adapters` crate.
 - Rename trait `Io` to `ErrorKind`, for consistency with `embedded-hal`.
 
 ## 0.4.0 - 2022-11-25

embedded-io/src/adapters.rs

@@ -8,9 +8,6 @@ use core::fmt;
 #[cfg(feature = "alloc")]
 extern crate alloc;
 
-#[cfg(feature = "std")]
-pub mod adapters;
-
 mod impls;
 
 /// Enumeration of possible methods to seek within an I/O object.
@@ -26,6 +23,30 @@ pub enum SeekFrom {
     Current(i64),
 }
 
+#[cfg(feature = "std")]
+#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
+impl From<SeekFrom> for std::io::SeekFrom {
+    fn from(pos: SeekFrom) -> Self {
+        match pos {
+            SeekFrom::Start(n) => std::io::SeekFrom::Start(n),
+            SeekFrom::End(n) => std::io::SeekFrom::End(n),
+            SeekFrom::Current(n) => std::io::SeekFrom::Current(n),
+        }
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
+impl From<std::io::SeekFrom> for SeekFrom {
+    fn from(pos: std::io::SeekFrom) -> SeekFrom {
+        match pos {
+            std::io::SeekFrom::Start(n) => SeekFrom::Start(n),
+            std::io::SeekFrom::End(n) => SeekFrom::End(n),
+            std::io::SeekFrom::Current(n) => SeekFrom::Current(n),
+        }
+    }
+}
+
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[non_exhaustive]
 /// Possible kinds of errors.
@@ -165,6 +186,14 @@ impl Error for ErrorKind {
     }
 }
 
+#[cfg(feature = "std")]
+#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
+impl crate::Error for std::io::Error {
+    fn kind(&self) -> crate::ErrorKind {
+        self.kind().into()
+    }
+}
+
 /// Base trait for all IO traits, defining the error type.
 ///
 /// All IO operations of all traits return the error defined in this trait.