feat: 增加 OTG HID 远程唤醒和 OTG MSD 设备名称配置

- 在补丁内核上启用 HID 写入唤醒及 USB 远程唤醒描述符
  - 支持全局配置 Flash 和 CD-ROM INQUIRY 字符串
  - 兼容普通内核的通用 INQUIRY 属性
  - 调整 OTG 功能布局并更新大容量 DVD 镜像提示

src/config/schema/web.rs

@@ -49,18 +49,51 @@ impl Default for VideoConfig {
 pub struct MsdConfig {
     pub enabled: bool,
     pub msd_dir: String,
+    pub flash_inquiry_string: String,
+    pub cdrom_inquiry_string: String,
 }
 
+pub const DEFAULT_FLASH_INQUIRY_STRING: &str = "One-KVM Virtual Flash";
+pub const DEFAULT_CDROM_INQUIRY_STRING: &str = "One-KVM Virtual CD-ROM";
+pub const MAX_INQUIRY_STRING_BYTES: usize = 28;
+
 impl Default for MsdConfig {
     fn default() -> Self {
         Self {
             enabled: true,
             msd_dir: String::new(),
+            flash_inquiry_string: DEFAULT_FLASH_INQUIRY_STRING.to_string(),
+            cdrom_inquiry_string: DEFAULT_CDROM_INQUIRY_STRING.to_string(),
         }
     }
 }
 
 impl MsdConfig {
+    pub fn validate(&self) -> crate::error::Result<()> {
+        Self::validate_inquiry_string("Flash", &self.flash_inquiry_string)?;
+        Self::validate_inquiry_string("CD-ROM", &self.cdrom_inquiry_string)
+    }
+
+    pub fn validate_inquiry_string(kind: &str, value: &str) -> crate::error::Result<()> {
+        let value = value.trim();
+        if value.is_empty() {
+            return Err(crate::error::AppError::BadRequest(format!(
+                "MSD {kind} inquiry string cannot be empty"
+            )));
+        }
+        if value.len() > MAX_INQUIRY_STRING_BYTES {
+            return Err(crate::error::AppError::BadRequest(format!(
+                "MSD {kind} inquiry string must be at most {MAX_INQUIRY_STRING_BYTES} bytes"
+            )));
+        }
+        if !value.bytes().all(|byte| (0x20..=0x7e).contains(&byte)) {
+            return Err(crate::error::AppError::BadRequest(format!(
+                "MSD {kind} inquiry string must contain printable ASCII characters only"
+            )));
+        }
+        Ok(())
+    }
+
     pub fn msd_dir_path(&self) -> std::path::PathBuf {
         std::path::PathBuf::from(&self.msd_dir)
     }
@@ -123,3 +156,18 @@ impl Default for WebConfig {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn msd_inquiry_strings_default_and_validate() {
+        assert!(MsdConfig::default().validate().is_ok());
+        assert!(MsdConfig::validate_inquiry_string("Flash", "  Custom Drive  ").is_ok());
+        assert!(MsdConfig::validate_inquiry_string("Flash", "").is_err());
+        assert!(MsdConfig::validate_inquiry_string("Flash", &"x".repeat(29)).is_err());
+        assert!(MsdConfig::validate_inquiry_string("CD-ROM", "虚拟光驱").is_err());
+        assert!(MsdConfig::validate_inquiry_string("CD-ROM", "bad\tname").is_err());
+    }
+}

src/otg/configfs.rs

@@ -106,6 +106,16 @@ pub fn write_file(path: &Path, content: &str) -> Result<()> {
     Ok(())
 }
 
+/// Write an optional configfs/sysfs attribute when the running kernel exposes it.
+/// This keeps newer kernel enhancements compatible with older kernels.
+pub fn write_file_if_exists(path: &Path, content: &str) -> Result<bool> {
+    if !path.exists() {
+        return Ok(false);
+    }
+    write_file(path, content)?;
+    Ok(true)
+}
+
 pub fn write_bytes(path: &Path, data: &[u8]) -> Result<()> {
     let mut file = File::create(path)
         .map_err(|e| AppError::Internal(format!("Failed to create {}: {}", path.display(), e)))?;

src/otg/hid.rs

@@ -3,6 +3,7 @@ use tracing::debug;
 
 use super::configfs::{
     create_dir, create_symlink, remove_dir, remove_file, write_bytes, write_file,
+    write_file_if_exists,
 };
 use super::function::GadgetFunction;
 use super::report_desc::{
@@ -143,6 +144,10 @@ impl GadgetFunction for HidFunction {
             self.func_type.report_desc(self.keyboard_leds),
         )?;
 
+        // Supported by the PiKVM HID kernel patch. Older kernels simply do
+        // not expose this ConfigFS attribute.
+        let _ = write_file_if_exists(&func_path.join("wakeup_on_write"), "1")?;
+
         debug!(
             "Created HID function: {} at {}",
             self.name(),

src/otg/manager.rs

@@ -4,12 +4,12 @@ use tracing::{debug, error, info, warn};
 
 use super::configfs::{
     configfs_path, create_dir, create_symlink, find_udc, is_configfs_available, remove_dir,
-    remove_file, write_file, DEFAULT_GADGET_NAME, DEFAULT_USB_BCD_DEVICE, DEFAULT_USB_PRODUCT_ID,
+    remove_file, write_file, write_file_if_exists, DEFAULT_GADGET_NAME, DEFAULT_USB_BCD_DEVICE,
-    DEFAULT_USB_VENDOR_ID, USB_BCD_USB,
+    DEFAULT_USB_PRODUCT_ID, DEFAULT_USB_VENDOR_ID, USB_BCD_USB,
 };
 use super::function::GadgetFunction;
 use super::hid::HidFunction;
-use super::msd::MsdFunction;
+use super::msd::{MsdFunction, MsdInquiryStrings};
 use super::network::NetworkFunction;
 use crate::config::OtgNetworkConfig;
 use crate::error::{AppError, Result};
@@ -134,8 +134,12 @@ impl OtgGadgetManager {
         Ok(device_path)
     }
 
-    pub fn add_msd(&mut self, lun_capacity: u8) -> Result<MsdFunction> {
+    pub fn add_msd(
-        let func = MsdFunction::new(self.msd_instance, lun_capacity)?;
+        &mut self,
+        lun_capacity: u8,
+        inquiry_strings: MsdInquiryStrings,
+    ) -> Result<MsdFunction> {
+        let func = MsdFunction::new(self.msd_instance, lun_capacity, inquiry_strings)?;
         let func_clone = func.clone();
         self.add_function(Box::new(func))?;
         self.msd_instance += 1;
@@ -196,6 +200,22 @@ impl OtgGadgetManager {
             func.link(&self.config_path, &self.gadget_path)?;
         }
 
+        // A host only enables USB remote wakeup when the configuration
+        // descriptor advertises it. Enable the descriptor bit only when the
+        // running kernel supports the HID wakeup_on_write attribute.
+        let hid_wakeup_supported = self.functions.iter().any(|func| {
+            func.name().starts_with("hid.")
+                && self
+                    .gadget_path
+                    .join("functions")
+                    .join(func.name())
+                    .join("wakeup_on_write")
+                    .exists()
+        });
+        if hid_wakeup_supported {
+            let _ = write_file_if_exists(&self.config_path.join("bmAttributes"), "0xA0")?;
+        }
+
         debug!("OTG USB Gadget setup complete");
         Ok(())
     }

src/otg/msd.rs

@@ -5,6 +5,7 @@ use tracing::{debug, info, warn};
 
 use super::configfs::{create_dir, create_symlink, remove_dir, remove_file, write_file};
 use super::function::GadgetFunction;
+use crate::config::{MsdConfig, DEFAULT_CDROM_INQUIRY_STRING, DEFAULT_FLASH_INQUIRY_STRING};
 use crate::error::{AppError, MsdErrorCode, Result};
 
 const MEDIA_TYPE_REBIND_DELAY_MS: u64 = 300;
@@ -56,14 +57,39 @@ impl MsdLunConfig {
     }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct MsdInquiryStrings {
+    pub flash: String,
+    pub cdrom: String,
+}
+
+impl Default for MsdInquiryStrings {
+    fn default() -> Self {
+        Self {
+            flash: DEFAULT_FLASH_INQUIRY_STRING.to_string(),
+            cdrom: DEFAULT_CDROM_INQUIRY_STRING.to_string(),
+        }
+    }
+}
+
+impl From<&MsdConfig> for MsdInquiryStrings {
+    fn from(config: &MsdConfig) -> Self {
+        Self {
+            flash: config.flash_inquiry_string.clone(),
+            cdrom: config.cdrom_inquiry_string.clone(),
+        }
+    }
+}
+
 #[derive(Debug, Clone)]
 pub struct MsdFunction {
     name: String,
     lun_capacity: u8,
+    inquiry_strings: MsdInquiryStrings,
 }
 
 impl MsdFunction {
-    pub fn new(instance: u8, lun_capacity: u8) -> Result<Self> {
+    pub fn new(instance: u8, lun_capacity: u8, inquiry_strings: MsdInquiryStrings) -> Result<Self> {
         if lun_capacity != 1 && lun_capacity != 8 {
             return Err(AppError::BadRequest(format!(
                 "MSD LUN capacity must be 1 or 8, got {lun_capacity}"
@@ -73,6 +99,7 @@ impl MsdFunction {
         Ok(Self {
             name: format!("mass_storage.usb{}", instance),
             lun_capacity,
+            inquiry_strings,
         })
     }
 
@@ -212,6 +239,23 @@ impl MsdFunction {
         current_cdrom != if config.cdrom { "1" } else { "0" }
     }
 
+    fn inquiry_string_path(lun_path: &Path, cdrom: bool) -> Option<PathBuf> {
+        let cdrom_path = lun_path.join("inquiry_string_cdrom");
+        if cdrom && cdrom_path.exists() {
+            return Some(cdrom_path);
+        }
+        let generic_path = lun_path.join("inquiry_string");
+        generic_path.exists().then_some(generic_path)
+    }
+
+    fn inquiry_string(&self, cdrom: bool) -> &str {
+        if cdrom {
+            &self.inquiry_strings.cdrom
+        } else {
+            &self.inquiry_strings.flash
+        }
+    }
+
     fn configure_lun_attributes(
         &self,
         lun_path: &Path,
@@ -256,6 +300,7 @@ impl MsdFunction {
                 lun, current_cdrom, new_cdrom
             );
             write_file(&lun_path.join("cdrom"), new_cdrom)?;
+            self.write_inquiry_string(lun_path, config.cdrom)?;
         }
         if current_ro != new_ro {
             debug!("Updating LUN {} ro: {} -> {}", lun, current_ro, new_ro);
@@ -320,6 +365,26 @@ impl MsdFunction {
         Ok(())
     }
 
+    fn write_inquiry_string(&self, lun_path: &Path, cdrom: bool) -> Result<()> {
+        if let Some(path) = Self::inquiry_string_path(lun_path, cdrom) {
+            write_file(&path, self.inquiry_string(cdrom))?;
+        }
+        Ok(())
+    }
+
+    fn write_inquiry_strings(&self, lun_path: &Path) -> Result<()> {
+        let generic_path = lun_path.join("inquiry_string");
+        if generic_path.exists() {
+            write_file(&generic_path, &self.inquiry_strings.flash)?;
+        }
+
+        let cdrom_path = lun_path.join("inquiry_string_cdrom");
+        if cdrom_path.exists() {
+            write_file(&cdrom_path, &self.inquiry_strings.cdrom)?;
+        }
+        Ok(())
+    }
+
     pub async fn disconnect_lun_async(&self, gadget_path: &Path, lun: u8) -> Result<()> {
         let gadget_path = gadget_path.to_path_buf();
         let this = self.clone();
@@ -455,6 +520,7 @@ impl GadgetFunction for MsdFunction {
 
         for lun in 0..self.lun_capacity {
             self.clear_lun_unbound(gadget_path, lun)?;
+            self.write_inquiry_strings(&self.lun_path(gadget_path, lun))?;
         }
 
         debug!("Created MSD function: {}", self.name());
@@ -526,6 +592,10 @@ mod tests {
     use super::*;
     use tempfile::TempDir;
 
+    fn test_msd(capacity: u8) -> MsdFunction {
+        MsdFunction::new(0, capacity, MsdInquiryStrings::default()).unwrap()
+    }
+
     #[test]
     fn test_lun_config_cdrom() {
         let config = MsdLunConfig::cdrom(PathBuf::from("/tmp/test.iso"));
@@ -542,21 +612,62 @@ mod tests {
         assert!(config.removable);
     }
 
+    #[test]
+    fn inquiry_string_uses_cdrom_attribute_with_stock_fallback() {
+        let msd = MsdFunction::new(
+            0,
+            1,
+            MsdInquiryStrings {
+                flash: "Custom Flash".into(),
+                cdrom: "Custom Optical".into(),
+            },
+        )
+        .unwrap();
+        let patched = TempDir::new().unwrap();
+        std::fs::write(patched.path().join("inquiry_string"), b"generic\n").unwrap();
+        std::fs::write(patched.path().join("inquiry_string_cdrom"), b"cdrom\n").unwrap();
+
+        msd.write_inquiry_strings(patched.path()).unwrap();
+
+        assert_eq!(
+            std::fs::read_to_string(patched.path().join("inquiry_string_cdrom"))
+                .unwrap()
+                .trim(),
+            "Custom Optical"
+        );
+        assert_eq!(
+            std::fs::read_to_string(patched.path().join("inquiry_string"))
+                .unwrap()
+                .trim(),
+            "Custom Flash"
+        );
+
+        let stock = TempDir::new().unwrap();
+        std::fs::write(stock.path().join("inquiry_string"), b"generic\n").unwrap();
+        msd.write_inquiry_string(stock.path(), true).unwrap();
+        assert_eq!(
+            std::fs::read_to_string(stock.path().join("inquiry_string"))
+                .unwrap()
+                .trim(),
+            "Custom Optical"
+        );
+    }
+
     #[test]
     fn test_msd_function_name() {
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
         assert_eq!(msd.name(), "mass_storage.usb0");
         assert_eq!(msd.lun_capacity, 1);
 
-        let multi = MsdFunction::new(0, 8).unwrap();
+        let multi = test_msd(8);
         assert_eq!(multi.lun_capacity, 8);
     }
 
     #[test]
     fn test_msd_function_rejects_invalid_capacity() {
-        assert!(MsdFunction::new(0, 0).is_err());
+        assert!(MsdFunction::new(0, 0, MsdInquiryStrings::default()).is_err());
-        assert!(MsdFunction::new(0, 2).is_err());
+        assert!(MsdFunction::new(0, 2, MsdInquiryStrings::default()).is_err());
-        assert!(MsdFunction::new(0, 9).is_err());
+        assert!(MsdFunction::new(0, 9, MsdInquiryStrings::default()).is_err());
     }
 
     #[test]
@@ -575,7 +686,7 @@ mod tests {
         std::fs::create_dir_all(&lun_path).unwrap();
         std::fs::write(lun_path.join("file"), b"backing.img\n").unwrap();
         std::fs::write(lun_path.join("forced_eject"), b"0\n").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.disconnect_lun(temp_dir.path(), 0).unwrap();
 
@@ -595,7 +706,7 @@ mod tests {
         let lun_path = temp_dir.path().join("functions/mass_storage.usb0/lun.0");
         std::fs::create_dir_all(&lun_path).unwrap();
         std::fs::write(lun_path.join("file"), b"backing.img\n").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.disconnect_lun(temp_dir.path(), 0).unwrap();
 
@@ -610,7 +721,7 @@ mod tests {
         let lun_path = temp_dir.path().join("functions/mass_storage.usb0/lun.0");
         std::fs::create_dir_all(lun_path.join("forced_eject")).unwrap();
         std::fs::write(lun_path.join("file"), b"backing.img\n").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.disconnect_lun(temp_dir.path(), 0).unwrap();
 
@@ -629,7 +740,7 @@ mod tests {
             std::fs::write(lun_path.join("file"), format!("backing-{lun}.img\n")).unwrap();
             std::fs::write(lun_path.join("forced_eject"), b"0\n").unwrap();
         }
-        let msd = MsdFunction::new(0, 8).unwrap();
+        let msd = test_msd(8);
 
         msd.disconnect_lun(temp_dir.path(), 1).unwrap();
 
@@ -656,7 +767,7 @@ mod tests {
         for capacity in [1, 8] {
             let temp_dir = TempDir::new().unwrap();
             std::fs::create_dir_all(temp_dir.path().join("functions")).unwrap();
-            let msd = MsdFunction::new(0, capacity).unwrap();
+            let msd = test_msd(capacity);
 
             msd.create(temp_dir.path()).unwrap();
 
@@ -678,7 +789,7 @@ mod tests {
         std::fs::write(temp_dir.path().join("UDC"), b"test.udc\n").unwrap();
         let image_path = temp_dir.path().join("test.img");
         std::fs::write(&image_path, b"image").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.configure_lun(temp_dir.path(), 0, &MsdLunConfig::disk(image_path, false))
             .unwrap();
@@ -711,7 +822,7 @@ mod tests {
         std::fs::write(temp_dir.path().join("UDC"), b"test.udc\n").unwrap();
         let image_path = temp_dir.path().join("test.iso");
         std::fs::write(&image_path, b"iso").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.configure_lun(temp_dir.path(), 0, &MsdLunConfig::cdrom(image_path.clone()))
             .unwrap();
@@ -751,7 +862,7 @@ mod tests {
         std::fs::write(temp_dir.path().join("UDC"), b"test.udc\n").unwrap();
         let image_path = temp_dir.path().join("test.iso");
         std::fs::write(&image_path, b"iso").unwrap();
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         assert!(msd
             .configure_lun(temp_dir.path(), 0, &MsdLunConfig::cdrom(image_path),)
@@ -771,7 +882,7 @@ mod tests {
         for lun in 1..8 {
             std::fs::create_dir_all(func_path.join(format!("lun.{lun}"))).unwrap();
         }
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         msd.cleanup(temp_dir.path()).unwrap();
 
@@ -788,7 +899,7 @@ mod tests {
             std::fs::write(lun_path.join("file"), format!("backing-{lun}.img\n")).unwrap();
             std::fs::write(lun_path.join("forced_eject"), b"0\n").unwrap();
         }
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         // Ordinary files do not disappear with configfs groups, so cleanup is
         // expected to report directory-removal failures in this test fixture.
@@ -809,7 +920,7 @@ mod tests {
         for lun in 0..2 {
             std::fs::create_dir_all(func_path.join(format!("lun.{lun}"))).unwrap();
         }
-        let msd = MsdFunction::new(0, 1).unwrap();
+        let msd = test_msd(1);
 
         let error = msd.cleanup(temp_dir.path()).unwrap_err();
 

src/otg/service.rs

@@ -6,7 +6,7 @@ use typeshare::typeshare;
 
 use super::bridge::NetworkBridgeRuntime;
 use super::manager::{wait_for_hid_devices, GadgetDescriptor, OtgGadgetManager};
-use super::msd::{MsdFunction, MsdLunConfig};
+use super::msd::{MsdFunction, MsdInquiryStrings, MsdLunConfig};
 use crate::config::{
     HidBackend, HidConfig, MsdConfig, OtgDescriptorConfig, OtgHidFunctions, OtgNetworkConfig,
     UacConfig,
@@ -62,6 +62,7 @@ pub(crate) struct OtgDesiredState {
     pub keyboard_leds: bool,
     pub msd_enabled: bool,
     pub msd_lun_capacity: u8,
+    pub msd_inquiry_strings: MsdInquiryStrings,
     pub network: OtgNetworkConfig,
     pub uac: UacConfig,
 }
@@ -75,6 +76,7 @@ impl Default for OtgDesiredState {
             keyboard_leds: false,
             msd_enabled: false,
             msd_lun_capacity: 1,
+            msd_inquiry_strings: MsdInquiryStrings::default(),
             network: OtgNetworkConfig::default(),
             uac: UacConfig::default(),
         }
@@ -90,6 +92,7 @@ impl OtgDesiredState {
     ) -> Result<Self> {
         network.validate()?;
         uac.validate()?;
+        msd.validate()?;
         let hid_functions = if hid.backend == HidBackend::Otg {
             let functions = hid.constrained_otg_functions();
             Some(functions)
@@ -115,6 +118,7 @@ impl OtgDesiredState {
             keyboard_leds: hid.effective_otg_keyboard_leds(),
             msd_enabled: msd.enabled,
             msd_lun_capacity: 1,
+            msd_inquiry_strings: MsdInquiryStrings::from(msd),
             network: network.clone(),
             uac: if uac.enabled {
                 uac.clone()
@@ -142,6 +146,7 @@ struct OtgServiceState {
     pub hid_enabled: bool,
     pub msd_enabled: bool,
     pub msd_lun_capacity: u8,
+    pub msd_inquiry_strings: MsdInquiryStrings,
     pub network: OtgNetworkConfig,
     pub uac: UacConfig,
     pub configured_udc: Option<String>,
@@ -160,6 +165,7 @@ impl Default for OtgServiceState {
             hid_enabled: false,
             msd_enabled: false,
             msd_lun_capacity: 1,
+            msd_inquiry_strings: MsdInquiryStrings::default(),
             network: OtgNetworkConfig::default(),
             uac: UacConfig::default(),
             configured_udc: None,
@@ -355,6 +361,7 @@ impl OtgService {
                 && state.hid_enabled == desired.hid_enabled()
                 && state.msd_enabled == desired.msd_enabled
                 && state.msd_lun_capacity == desired.msd_lun_capacity
+                && state.msd_inquiry_strings == desired.msd_inquiry_strings
                 && state.network == desired.network
                 && state.uac == desired.uac
                 && state.configured_udc == desired.udc
@@ -395,6 +402,7 @@ impl OtgService {
             state.hid_enabled = false;
             state.msd_enabled = false;
             state.msd_lun_capacity = 1;
+            state.msd_inquiry_strings = MsdInquiryStrings::default();
             state.network = OtgNetworkConfig::default();
             state.uac = UacConfig::default();
             state.configured_udc = None;
@@ -505,7 +513,10 @@ impl OtgService {
         }
 
         let msd_func = if desired.msd_enabled {
-            match manager.add_msd(desired.msd_lun_capacity) {
+            match manager.add_msd(
+                desired.msd_lun_capacity,
+                desired.msd_inquiry_strings.clone(),
+            ) {
                 Ok(func) => {
                     debug!("MSD function added to gadget");
                     Some(func)
@@ -592,6 +603,7 @@ impl OtgService {
             state.hid_enabled = desired.hid_enabled();
             state.msd_enabled = desired.msd_enabled;
             state.msd_lun_capacity = desired.msd_lun_capacity;
+            state.msd_inquiry_strings = desired.msd_inquiry_strings.clone();
             state.network = desired.network.clone();
             state.uac = desired.uac.clone();
             state.configured_udc = Some(udc);
@@ -715,6 +727,14 @@ mod tests {
         assert_ne!(single, multi);
     }
 
+    #[test]
+    fn inquiry_strings_participate_in_desired_state_equality() {
+        let original = OtgDesiredState::default();
+        let mut changed = original.clone();
+        changed.msd_inquiry_strings.flash = "Custom Flash".to_string();
+        assert_ne!(original, changed);
+    }
+
     #[test]
     fn onecloud_full_composite_is_not_rejected_before_configfs() {
         let hid = HidConfig {

src/web/handlers/config/apply.rs

@@ -277,6 +277,9 @@ pub async fn apply_msd_config(
     let old_msd_enabled = old_config.enabled;
     let new_msd_enabled = effective_new_msd_enabled;
     let msd_dir_changed = old_config.msd_dir != new_config.msd_dir;
+    let inquiry_strings_changed = old_config.flash_inquiry_string
+        != new_config.flash_inquiry_string
+        || old_config.cdrom_inquiry_string != new_config.cdrom_inquiry_string;
 
     tracing::info!(
         "MSD enabled: old={}, new={}",
@@ -286,6 +289,9 @@ pub async fn apply_msd_config(
     if msd_dir_changed {
         tracing::info!("MSD directory changed: {}", new_config.msd_dir);
     }
+    if inquiry_strings_changed {
+        tracing::info!("MSD inquiry strings changed");
+    }
 
     let msd_dir = new_config.msd_dir_path();
     if let Err(e) = std::fs::create_dir_all(msd_dir.join("images")) {
@@ -295,12 +301,12 @@ pub async fn apply_msd_config(
         tracing::warn!("Failed to create MSD ventoy directory: {}", e);
     }
 
-    let needs_reload = options.force || old_msd_enabled != new_msd_enabled || msd_dir_changed;
+    let needs_reload = options.force
+        || old_msd_enabled != new_msd_enabled
+        || msd_dir_changed
+        || inquiry_strings_changed;
     if !needs_reload {
-        tracing::info!(
+        tracing::info!("MSD configuration unchanged, no reload needed");
-            "MSD enabled state unchanged ({}) and directory unchanged, no reload needed",
-            new_msd_enabled
-        );
         return Ok(());
     }
 

src/web/handlers/config/types.rs

@@ -476,6 +476,8 @@ impl OtgNetworkConfigUpdate {
 pub struct MsdConfigUpdate {
     pub enabled: Option<bool>,
     pub msd_dir: Option<String>,
+    pub flash_inquiry_string: Option<String>,
+    pub cdrom_inquiry_string: Option<String>,
 }
 
 #[cfg(unix)]
@@ -492,6 +494,12 @@ impl MsdConfigUpdate {
                 ));
             }
         }
+        if let Some(ref value) = self.flash_inquiry_string {
+            MsdConfig::validate_inquiry_string("Flash", value)?;
+        }
+        if let Some(ref value) = self.cdrom_inquiry_string {
+            MsdConfig::validate_inquiry_string("CD-ROM", value)?;
+        }
         Ok(())
     }
 
@@ -502,6 +510,12 @@ impl MsdConfigUpdate {
         if let Some(ref dir) = self.msd_dir {
             config.msd_dir = dir.trim().to_string();
         }
+        if let Some(ref value) = self.flash_inquiry_string {
+            config.flash_inquiry_string = value.trim().to_string();
+        }
+        if let Some(ref value) = self.cdrom_inquiry_string {
+            config.cdrom_inquiry_string = value.trim().to_string();
+        }
     }
 }
 

web/src/i18n/en-US.ts

@@ -409,7 +409,7 @@ export default {
     download: 'Download',
     downloadComplete: 'Download complete',
     largeFileWarning: '>2.2GB',
-    largeFileTooltip: 'File is larger than 2.2GB, please use Flash mode to mount',
+    largeFileTooltip: 'If DVD image support is not enabled in the kernel, only the first 2.2 GB is accessible after mounting.',
     operationInProgress: 'Operation in progress, please wait',
     selectDriveSize: 'Select virtual drive size',
     driveSpaceUnknown: 'Unable to read available space for the MSD directory filesystem',
@@ -644,6 +644,8 @@ export default {
     username: 'Username',
     password: 'Password',
     msdDir: 'MSD directory',
+    msdFlashInquiryString: 'Flash device name',
+    msdCdromInquiryString: 'CD-ROM device name',
     atxPowerButton: 'Power Button',
     atxResetButton: 'Reset Button',
     atxPowerManagement: 'Power Management',

web/src/i18n/zh-CN.ts

@@ -408,7 +408,7 @@ export default {
     download: '下载',
     downloadComplete: '下载完成',
     largeFileWarning: '>2.2GB',
-    largeFileTooltip: '文件大于 2.2GB，请使用 Flash 模式挂载',
+    largeFileTooltip: '若内核未启用 DVD 镜像支持，挂载后仅前 2.2 GB 可访问。',
     operationInProgress: '操作进行中，请稍候',
     selectDriveSize: '选择虚拟驱动器大小',
     driveSpaceUnknown: '无法读取 MSD 目录所在储存空间的剩余可用空间',
@@ -643,6 +643,8 @@ export default {
     username: '用户名',
     password: '密码',
     msdDir: 'MSD 目录',
+    msdFlashInquiryString: 'Flash 设备名称',
+    msdCdromInquiryString: 'CD-ROM 设备名称',
     atxPowerButton: '电源按钮',
     atxResetButton: '重启按钮',
     atxPowerManagement: '电源管理',

web/src/types/generated.ts

@@ -86,6 +86,8 @@ export interface OtgNetworkConfig {
 export interface MsdConfig {
 	enabled: boolean;
 	msd_dir: string;
+	flash_inquiry_string: string;
+	cdrom_inquiry_string: string;
 }
 
 export enum AtxDriverType {
@@ -546,6 +548,8 @@ export interface HidConfigUpdate {
 export interface MsdConfigUpdate {
 	enabled?: boolean;
 	msd_dir?: string;
+	flash_inquiry_string?: string;
+	cdrom_inquiry_string?: string;
 }
 
 export interface NetworkInterfaceInfo {

web/src/views/SettingsView.vue

@@ -675,6 +675,8 @@ const config = ref({
   hid_ch9329_hybrid_mouse: false,
   msd_enabled: false,
   msd_dir: '',
+  msd_flash_inquiry_string: 'One-KVM Virtual Flash',
+  msd_cdrom_inquiry_string: 'One-KVM Virtual CD-ROM',
   otg_network_enabled: false,
   otg_network_driver: 'ncm' as 'ncm' | 'ecm' | 'rndis',
   otg_network_interface: '',
@@ -1013,6 +1015,18 @@ const isHidFunctionSelectionValid = computed(() => {
   return !!(f.keyboard || f.mouse_relative || f.mouse_absolute || f.consumer)
 })
 
+function isValidInquiryString(value: string): boolean {
+  return /^[\x20-\x7e]{1,28}$/.test(value.trim())
+}
+
+const areMsdInquiryStringsValid = computed(() =>
+  !config.value.msd_enabled
+  || (
+    isValidInquiryString(config.value.msd_flash_inquiry_string)
+    && isValidInquiryString(config.value.msd_cdrom_inquiry_string)
+  )
+)
+
 const otgVendorIdHex = ref('1d6b')
 const otgProductIdHex = ref('0104')
 const otgManufacturer = ref('One-KVM')
@@ -1144,6 +1158,7 @@ const isCh9329DescriptorDirty = computed(() => {
 const isHidSettingsValid = computed(() =>
   isHidFunctionSelectionValid.value
   && isCh9329DescriptorValid.value
+  && areMsdInquiryStringsValid.value
 )
 
 watch(bindMode, (mode) => {
@@ -1471,6 +1486,8 @@ async function saveConfig() {
         msd: {
           enabled: otgEnabled && config.value.msd_enabled,
           msd_dir: config.value.msd_dir || undefined,
+          flash_inquiry_string: config.value.msd_flash_inquiry_string,
+          cdrom_inquiry_string: config.value.msd_cdrom_inquiry_string,
         },
         network: {
           enabled: otgEnabled && config.value.otg_network_enabled,
@@ -1541,6 +1558,8 @@ async function loadConfig() {
       hid_ch9329_hybrid_mouse: hid.ch9329_hybrid_mouse ?? false,
       msd_enabled: msd.enabled || false,
       msd_dir: msd.msd_dir || '',
+      msd_flash_inquiry_string: msd.flash_inquiry_string || 'One-KVM Virtual Flash',
+      msd_cdrom_inquiry_string: msd.cdrom_inquiry_string || 'One-KVM Virtual CD-ROM',
       otg_network_enabled: otgNetwork.enabled,
       otg_network_driver: otgNetwork.driver_mode,
       uac_enabled: uac.enabled,
@@ -3299,41 +3318,48 @@ watch(isWindows, () => {
                       <h4 class="text-sm font-medium">{{ t('settings.otgHidProfile') }}</h4>
                     </div>
                     <div class="space-y-3">
-                      <div class="space-y-3 rounded-md border border-border/60 p-3">
+                      <div class="grid gap-3 md:grid-cols-2">
-                        <div class="flex items-center justify-between gap-4">
+                        <div class="space-y-3 rounded-md border border-border/60 p-3">
-                          <div>
+                          <div class="flex items-center justify-between gap-4">
-                            <Label>{{ t('settings.otgFunctionMouseRelative') }}</Label>
+                            <div>
+                              <Label>{{ t('settings.otgFunctionKeyboard') }}</Label>
+                            </div>
+                            <Switch v-model="config.hid_otg_functions.keyboard" />
+                          </div>
+                          <Separator />
+                          <div class="flex items-center justify-between gap-4">
+                            <div>
+                              <Label>{{ t('settings.otgFunctionConsumer') }}</Label>
+                            </div>
+                            <Switch v-model="config.hid_otg_functions.consumer" />
+                          </div>
+                          <Separator />
+                          <div class="flex items-center justify-between gap-4">
+                            <div>
+                              <Label>{{ t('settings.otgKeyboardLeds') }}</Label>
+                            </div>
+                            <Switch v-model="config.hid_otg_keyboard_leds" :disabled="isKeyboardLedToggleDisabled" />
                           </div>
-                          <Switch v-model="config.hid_otg_functions.mouse_relative" />
                         </div>
-                        <Separator />
+                        <div class="space-y-3 rounded-md border border-border/60 p-3">
-                        <div class="flex items-center justify-between gap-4">
+                          <div class="flex items-center justify-between gap-4">
-                          <div>
+                            <div>
-                            <Label>{{ t('settings.otgFunctionMouseAbsolute') }}</Label>
+                              <Label>{{ t('settings.otgFunctionMouseRelative') }}</Label>
+                            </div>
+                            <Switch v-model="config.hid_otg_functions.mouse_relative" />
                           </div>
-                          <Switch v-model="config.hid_otg_functions.mouse_absolute" />
+                          <Separator />
-                        </div>
+                          <div class="flex items-center justify-between gap-4">
-                      </div>
+                            <div>
-                      <div class="space-y-3 rounded-md border border-border/60 p-3">
+                              <Label>{{ t('settings.otgFunctionMouseAbsolute') }}</Label>
-                        <div class="flex items-center justify-between gap-4">
+                            </div>
-                          <div>
+                            <Switch v-model="config.hid_otg_functions.mouse_absolute" />
-                            <Label>{{ t('settings.otgFunctionKeyboard') }}</Label>
                           </div>
-                          <Switch v-model="config.hid_otg_functions.keyboard" />
+                          <Separator />
-                        </div>
+                          <div class="flex items-center justify-between gap-4">
-                        <Separator />
+                            <Label>{{ t('settings.uacMic') }}</Label>
-                        <div class="flex items-center justify-between gap-4">
+                            <Switch v-model="config.uac_enabled" />
-                          <div>
-                            <Label>{{ t('settings.otgFunctionConsumer') }}</Label>
                           </div>
-                          <Switch v-model="config.hid_otg_functions.consumer" />
-                        </div>
-                        <Separator />
-                        <div class="flex items-center justify-between gap-4">
-                          <div>
-                            <Label>{{ t('settings.otgKeyboardLeds') }}</Label>
-                          </div>
-                          <Switch v-model="config.hid_otg_keyboard_leds" :disabled="isKeyboardLedToggleDisabled" />
                         </div>
                       </div>
                       <div class="space-y-3 rounded-md border border-border/60 p-3">
@@ -3349,6 +3375,24 @@ watch(isWindows, () => {
                             <Label for="msd-dir">{{ t('settings.msdDir') }}</Label>
                             <Input id="msd-dir" v-model="config.msd_dir" placeholder="/etc/one-kvm/msd" />
                           </div>
+                          <div class="space-y-2">
+                            <Label for="msd-flash-inquiry-string">{{ t('settings.msdFlashInquiryString') }}</Label>
+                            <Input
+                              id="msd-flash-inquiry-string"
+                              v-model="config.msd_flash_inquiry_string"
+                              placeholder="One-KVM Virtual Flash"
+                              maxlength="28"
+                            />
+                          </div>
+                          <div class="space-y-2">
+                            <Label for="msd-cdrom-inquiry-string">{{ t('settings.msdCdromInquiryString') }}</Label>
+                            <Input
+                              id="msd-cdrom-inquiry-string"
+                              v-model="config.msd_cdrom_inquiry_string"
+                              placeholder="One-KVM Virtual CD-ROM"
+                              maxlength="28"
+                            />
+                          </div>
                         </template>
                       </div>
                       <div class="space-y-3 rounded-md border border-border/60 p-3">
@@ -3412,12 +3456,6 @@ watch(isWindows, () => {
                           {{ t('settings.otgRuntimeDegraded') }}: {{ otgNetworkStatus.error || t('common.error') }}
                         </p>
                       </div>
-                      <div class="space-y-3 rounded-md border border-border/60 p-3">
-                        <div class="flex items-center justify-between gap-4">
-                          <Label>{{ t('settings.uacMic') }}</Label>
-                          <Switch v-model="config.uac_enabled" />
-                        </div>
-                      </div>
                     </div>
                     <p class="text-xs text-warning">
                       {{ t('settings.otgProfileWarning') }}