diff --git a/app-common/src/main/java/im/angry/openeuicc/core/usb/UsbCcidUtils.kt b/app-common/src/main/java/im/angry/openeuicc/core/usb/UsbCcidUtils.kt
index 5dab033..758e003 100644
--- a/app-common/src/main/java/im/angry/openeuicc/core/usb/UsbCcidUtils.kt
+++ b/app-common/src/main/java/im/angry/openeuicc/core/usb/UsbCcidUtils.kt
@@ -11,6 +11,9 @@ class UsbTransportException(message: String) : Exception(message)
 val UsbDevice.interfaces: Iterable<UsbInterface>
     get() = (0 until interfaceCount).map(::getInterface)
 
+fun UsbDevice.getSmartCardInterface() =
+    interfaces.find { it.interfaceClass == UsbConstants.USB_CLASS_CSCID }
+
 val UsbInterface.endpoints: Iterable<UsbEndpoint>
     get() = (0 until endpointCount).map(::getEndpoint)
 
@@ -22,6 +25,3 @@ fun UsbInterface.getBulkEndpoints(): Pair<UsbEndpoint?, UsbEndpoint?> {
         endpoints.find { it.direction == UsbConstants.USB_DIR_OUT },
     )
 }
-
-fun UsbDevice.getSmartCardInterface() =
-    interfaces.find { it.interfaceClass == UsbConstants.USB_CLASS_CSCID }
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