Move enum Event to crate input, begin work on EventWriter

input/src/event_writer.rs

@@ -1 +1,32 @@
-pub struct EventWriter {}
+use crate::async_file::{AsyncFile, OpenMode};
+use crate::bindings;
+use libc::c_int;
+use std::io::Error;
+use std::os::unix::io::AsRawFd;
+
+pub struct EventWriter {
+    file: AsyncFile,
+}
+
+impl EventWriter {
+    pub async fn new() -> Result<Self, Error> {
+        let file = AsyncFile::open("/dev/uinput", OpenMode::Write).await?;
+        let fd = file.as_raw_fd();
+
+        for evbit in &[bindings::EV_KEY, bindings::EV_REL] {
+            // Doesn't work, UI_SET_KEYBIT not found.
+            // Probably too complicated for bindgen to be able to do something with it.
+            check_ioctl(unsafe { libc::ioctl(fd, bindings::UI_SET_KEYBIT, evbit) })?;
+        }
+
+        Ok(EventWriter { file })
+    }
+}
+
+fn check_ioctl(ret: c_int) -> Result<(), Error> {
+    if ret == -1 {
+        return Err(Error::last_os_error());
+    }
+
+    Ok(())
+}

input/src/lib.rs

@@ -1,4 +1,9 @@
 mod async_file;
 mod bindings;
+mod event;
 mod event_reader;
 mod event_writer;
+
+pub use event::Event;
+pub use event_reader::EventReader;
+pub use event_writer::EventWriter;

proto/src/lib.rs

@@ -1 +1 @@
-mod event;
+