Create an example to call the get version function

Cargo.toml

@@ -7,3 +7,4 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+hidapi = "1.2.6"

src/main.rs

@@ -1,3 +1,77 @@
-fn main() {
+extern crate hidapi;
-    println!("Hello, world!");
+
+use hidapi::*;
+
+fn ReceiveData(device: &HidDevice) -> Result<Vec<u8>,()> {
+    let mut usb_buf = vec![0u8; 65];
+    let mut err_cnt = 3;
+    let mut chk_sum = 0;
+    
+    loop {
+        usb_buf[0] = 0x01;
+        match device.get_feature_report(&mut usb_buf[..]) {
+            Ok(res) => {
+                if usb_buf[0] == 0x1 {
+                    for i in 0..res {
+                        chk_sum ^= usb_buf[i];
+                    }
+                    if chk_sum == 0 {
+                        break Err(());
+                    }
+                    break Ok(usb_buf);
+                }
+            },
+            Err(_)  => {
+                err_cnt -= 1;
+                if err_cnt == 0 {
+                    break Err(());
+                }
+            }
+        }
+    }
+}
+
+fn SendData(device: &HidDevice, data: &[u8]) {
+    let mut usb_buf = [0u8; 65];
+    let mut err_cnt = 3;
+
+    loop {
+        let mut chk_sum = 0;
+        usb_buf[0] = 0x01;
+        for i in 1..data.len() {
+            usb_buf[i + 1] = data[i];
+            chk_sum ^= data[i];
+        }
+
+        usb_buf[data.len() + 1] = chk_sum;
+        match device.send_feature_report(&usb_buf[..]) {
+            Ok(_) => break,
+            Err(_) => {
+                err_cnt -= 1;
+                if err_cnt == 0 {
+                    break;
+                }
+                ()
+            }            
+        }
+    }
+}
+
+fn main() {
+    println!("Get the version data from the keyboard:");
+
+    let api = HidApi::new().unwrap();
+
+    // connect to the device using VID and PID
+    let (VID, PID) = (0x24f0, 0x2037);
+    let device = api.open(VID, PID).unwrap();
+
+    let usb_init = [0xea, 0x02, 0xb0];
+    SendData(&device, &usb_init[..]);
+    match ReceiveData(&device) {
+        Ok(data) => {
+            println!("It worked!")
+        },
+        Err(_) => ()
+    }
 }