Add documentation for customizing USB VID/PID on NanoKVM

docs/hardware/en/kvm/NanoKVM/development.md

@@ -54,6 +54,45 @@ NanoKVM supports custom logo display, which can be shown simultaneously on the O
 
 ![](../../../assets/NanoKVM/guide/logo2.jpg)
 
+## Modifying USB VID/PID
+
+NanoKVM supports customizing the Vendor ID (VID) and Product ID (PID) of USB devices. You can modify these parameters by creating specific configuration files.
+
+### Procedure
+
+1. Create configuration files:
+   - Modify VID: Create the `usb.vid` file in the `/boot` directory and write a 4-digit hexadecimal VID
+   - Modify PID: Create the `usb.pid` file in the `/boot` directory and write a 4-digit hexadecimal PID
+
+   **There are two methods to create the files:**
+
+   **Method 1: Create via Web Terminal or SSH Login**
+   
+   Directly execute the following commands in the NanoKVM web terminal or after logging in via SSH:
+   ```bash
+   echo "0x3346" > /boot/usb.vid
+   echo "0x1009" > /boot/usb.pid
+   ```
+   
+   **Method 2: Create via TF Card**
+   
+   If the TF card is easily removable, insert it into your computer and create the `usb.vid` and `usb.pid` files directly in the `boot` partition, writing the corresponding values.
+
+2. Reboot the NanoKVM device for the changes to take effect
+
+3. **Restore Default VID/PID**: Delete the `/boot/usb.vid` and `/boot/usb.pid` files, then reboot the device to restore the default VID/PID.
+
+### Verify Changes
+
+After modification, you can verify the VID/PID changes using the `lsusb` command:
+
+```bash
+$ lsusb
+Bus 003 Device 089: ID 3346:1009 sipeed NanoKVM
+```
+
+> Note: After modifying the VID/PID, the host may require reinstallation of the driver. Ensure that you use legitimate VID/PID combinations to avoid conflicts with existing devices.
+
 ## Obtaining Streaming Related Data
 
 Streaming and image parameters are located in the `/kvmapp/kvm` folder.

docs/hardware/zh/kvm/NanoKVM/development.md

@@ -54,6 +54,45 @@ NanoKVM 支持自定义 Logo 显示，可在 OLED 屏幕和 Web 管理界面中
 
 ![](../../../assets/NanoKVM/guide/logo2.jpg)
 
+## 修改 USB VID/PID
+
+NanoKVM 支持自定义 USB 设备的 Vendor ID (VID) 和 Product ID (PID)。您可以通过创建特定的配置文件来修改这些参数。
+
+### 操作步骤
+
+1. 创建配置文件：
+   - 修改 VID：在 `/boot` 目录下创建 `usb.vid` 文件，写入四位十六进制的VID
+   - 修改 PID：在 `/boot` 目录下创建 `usb.pid` 文件，写入四位十六进制的PID
+
+   **创建文件的方法有以下两种：**
+
+   **方法一：通过网页终端或 SSH 登录后创建**
+   
+   直接在 NanoKVM 的网页终端或通过 SSH 登录后，执行以下命令：
+   ```bash
+   echo "0x3346" > /boot/usb.vid
+   echo "0x1009" > /boot/usb.pid
+   ```
+   
+   **方法二：通过 TF 卡创建**
+   
+   如果方便取下 TF 卡，可以将 TF 卡插入电脑，在 `boot` 分区中直接创建 `usb.vid` 和 `usb.pid` 文件，并写入对应的值。
+
+2. 重启 NanoKVM 设备，修改将立即生效
+
+3. **恢复默认 VID/PID**：删除 `/boot/usb.vid` 和 `/boot/usb.pid` 两个文件，然后重启设备即可恢复默认的 VID/PID。
+
+### 验证效果
+
+修改完成后，可以通过 `lsusb` 命令验证 VID/PID 是否生效：
+
+```bash
+$ lsusb
+Bus 003 Device 089: ID 3346:1009 sipeed NanoKVM
+```
+
+> 注意：VID/PID 修改后，主机可能需要重新安装驱动程序。请确保使用合法的 VID/PID 组合，避免与现有设备冲突。
+
 ## 获取推流相关数据
 
 推流和图像参数位于/kvmapp/kvm文件夹下