Finished implementing most functions

src/backend/native.rs

@@ -64,6 +64,22 @@ impl Device for UsbDevice {
     async fn product_id(&self) -> u16 {
         self.device_info.product_id()
     }
+
+    async fn class(&self) -> u8 {
+        self.device_info.class()
+    }
+
+    async fn subclass(&self) -> u8 {
+        self.device_info.subclass()
+    }
+
+    async fn manufacturer_string(&self) -> Option<String> {
+        self.device_info.manufacturer_string().map(str::to_string)
+    }
+
+    async fn product_string(&self) -> Option<String> {
+        self.device_info.product_string().map(str::to_string)
+    }
 }
 
 impl<'a> Interface<'a> for UsbInterface {

src/backend/wasm.rs

@@ -113,6 +113,22 @@ impl Device for UsbDevice {
     async fn product_id(&self) -> u16 {
         self.device.product_id()
     }
+
+    async fn class(&self) -> u8 {
+        self.device.device_class()
+    }
+
+    async fn subclass(&self) -> u8 {
+        self.device.device_subclass()
+    }
+
+    async fn manufacturer_string(&self) -> Option<String> {
+        self.device.manufacturer_name()
+    }
+
+    async fn product_string(&self) -> Option<String> {
+        self.device.product_name()
+    }
 }
 
 impl<'a> Interface<'a> for UsbInterface {

src/usb.rs

@@ -7,32 +7,45 @@ pub trait Device {
     type UsbDevice;
     type UsbInterface;
 
+    /// Open a specific interface of the device
     async fn open_interface(&self, number: u8) -> Result<UsbInterface, Box<dyn Error>>;
+
+    /// Reset the device, which causes it to no longer be usable
     async fn reset(&self) -> Result<(), Box<dyn Error>>;
+
+    /// 16 bit device product ID
     async fn product_id(&self) -> u16;
+
+    /// 16 bit device vendor ID
     async fn vendor_id(&self) -> u16;
 
-    //TODO: Implement these placeholders
-    async fn class(&self) -> u16 {
-        0x00
-    }
-    async fn subclass(&self) -> u16 {
-        0x00
-    }
-    async fn manufacturer_string(&self) -> Option<&str> {
-        None
-    }
-    async fn product_string(&self) -> Option<&str> {
-        None
-    }
+    /// Device standard class
+    async fn class(&self) -> u8;
+
+    /// Device standard subclass
+    async fn subclass(&self) -> u8;
+
+    /// Get the manufacturer string string of the device, if available without device IO
+    ///
+    /// Not available on Windows
+    async fn manufacturer_string(&self) -> Option<String>;
+
+    /// Get the product string of the device, if available without device IO
+    async fn product_string(&self) -> Option<String>;
 }
 
 /// A specific interface of a USB device
 pub trait Interface<'a> {
+    /// A USB control in transfer (device to host)
     async fn control_in(&self, data: ControlIn) -> Result<Vec<u8>, Box<dyn Error>>;
+
+    /// A USB control out transfer (host to device)
     async fn control_out(&self, data: ControlOut<'a>) -> Result<(), Box<dyn Error>>;
 
+    /// A USB bulk in transfer (device to host)
     async fn bulk_in(&self, endpoint: u8, length: usize) -> Result<Vec<u8>, Box<dyn Error>>;
+
+    /// A USB bulk out transfer (host to device)
     async fn bulk_out(&self, endpoint: u8, data: Vec<u8>) -> Result<usize, Box<dyn Error>>;
 
     async fn interrupt_in(&self, _endpoint: u8, _buf: Vec<u8>) {