refactor: 删除部分多余的代码和注释

src/otg/function.rs

@@ -1,42 +1,17 @@
-//! USB Gadget Function trait definition
-
 use std::path::Path;
 
 use crate::error::Result;
 
-/// Function metadata
-#[derive(Debug, Clone)]
-pub struct FunctionMeta {
-    /// Function name (e.g., "hid.usb0")
-    pub name: String,
-    /// Human-readable description
-    pub description: String,
-    /// Number of endpoints used
-    pub endpoints: u8,
-    /// Whether the function is enabled
-    pub enabled: bool,
-}
-
-/// USB Gadget Function trait
 pub trait GadgetFunction: Send + Sync {
-    /// Get function name (e.g., "hid.usb0", "mass_storage.usb0")
     fn name(&self) -> &str;
 
-    /// Get number of endpoints required
     fn endpoints_required(&self) -> u8;
 
-    /// Get function metadata
-    fn meta(&self) -> FunctionMeta;
-
-    /// Create function directory and configuration in ConfigFS
     fn create(&self, gadget_path: &Path) -> Result<()>;
 
-    /// Link function to configuration
     fn link(&self, config_path: &Path, gadget_path: &Path) -> Result<()>;
 
-    /// Unlink function from configuration
     fn unlink(&self, config_path: &Path) -> Result<()>;
 
-    /// Cleanup function directory
     fn cleanup(&self, gadget_path: &Path) -> Result<()>;
 }