update doc

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/application-dev/device/usb-guidelines.md

@@ -2,7 +2,7 @@
 
 ## When to Use
 
-In Host mode, you can obtain the list of connected devices, enable or disable the devices, manage device access permissions, and perform data transfer or control transfer.
+In Host mode, you can obtain the list of connected USB devices, enable or disable the devices, manage device access permissions, and perform data transfer or control transfer.
 
 ## APIs
 
@@ -16,6 +16,7 @@ The following table lists the USB APIs currently available. For details, see the
 | ------------------------------------------------------------ | ------------------------------------------------------------ |
 | hasRight(deviceName: string): boolean                        | Checks whether the user, for example, the application or system, has the device access permissions. The value **true** is returned if the user has the device access permissions; the value **false** is returned otherwise. |
 | requestRight(deviceName: string): Promise\<boolean>          | Requests the temporary permission for a given application to access the USB device. |
+| removeRight(deviceName: string): boolean                     | Removes the permission for a given application to access the USB device. |
 | connectDevice(device: USBDevice): Readonly\<USBDevicePipe>   | Connects to the USB device based on the device information returned by `getDevices()`. |
 | getDevices(): Array<Readonly\<USBDevice>>                    | Obtains the USB device list.                                 |
 | setConfiguration(pipe: USBDevicePipe, config: USBConfig): number | Sets the USB device configuration.                           |

en/application-dev/reference/errorcodes/errorcode-usb.md

+# USB Error Codes
+
+## 14400001 USB Device Connection Denied
+
+**Error Message**
+
+Permission denied. Need call requestRight to get permission.
+
+**Description**
+
+This error code is reported if a certain API of the USB module is called but the required permission is not granted.
+
+**Possible Causes**
+
+The permission to access the USB device is not granted.
+
+**Solution**
+
+Call **requestRight** to request for the permission to access the USB device.