diff --git a/src/class.rs b/src/class.rs
index bb49670..93c9f52 100644
--- a/src/class.rs
+++ b/src/class.rs
@@ -13,19 +13,19 @@ use crate::{
 use usb_device::class_prelude::*;
 type Result<T> = core::result::Result<T, UsbError>;
 
-pub struct Ccid<Bus, I, const N: usize>
+pub struct Ccid<'bus, Bus, I, const N: usize>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,
 {
     interface_number: InterfaceNumber,
     string_index: StringIndex,
-    read: EndpointOut<'static, Bus>,
+    read: EndpointOut<'bus, Bus>,
     // interrupt: EndpointIn<'static, Bus>,
-    pipe: Pipe<Bus, I, N>,
+    pipe: Pipe<'bus, Bus, I, N>,
 }
 
-impl<Bus, I, const N: usize> Ccid<Bus, I, N>
+impl<'bus, Bus, I, const N: usize> Ccid<'bus, Bus, I, N>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,
@@ -36,7 +36,7 @@ where
     /// and allows personalizing the Answer-to-Reset, for instance by
     /// ASCII-encoding vendor or model information.
     pub fn new(
-        allocator: &'static UsbBusAllocator<Bus>,
+        allocator: &'bus UsbBusAllocator<Bus>,
         request_pipe: Requester<I>,
         card_issuers_data: Option<&[u8]>,
     ) -> Self {
@@ -84,7 +84,7 @@ where
     }
 }
 
-impl<Bus, I, const N: usize> UsbClass<Bus> for Ccid<Bus, I, N>
+impl<'bus, Bus, I, const N: usize> UsbClass<Bus> for Ccid<'bus, Bus, I, N>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,
diff --git a/src/pipe.rs b/src/pipe.rs
index 5758df6..e8ec914 100644
--- a/src/pipe.rs
+++ b/src/pipe.rs
@@ -35,12 +35,12 @@ enum Error {
     CommandNotSupported = 0x00,
 }
 
-pub struct Pipe<Bus, I, const N: usize>
+pub struct Pipe<'bus, Bus, I, const N: usize>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,
 {
-    pub(crate) write: EndpointIn<'static, Bus>,
+    pub(crate) write: EndpointIn<'bus, Bus>,
     // pub(crate) rpc: TransportEndpoint<'rpc>,
     seq: u8,
     state: State,
@@ -58,13 +58,13 @@ where
     atr: Vec<u8, 32>,
 }
 
-impl<Bus, I, const N: usize> Pipe<Bus, I, N>
+impl<'bus, Bus, I, const N: usize> Pipe<'bus, Bus, I, N>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,
 {
     pub(crate) fn new(
-        write: EndpointIn<'static, Bus>,
+        write: EndpointIn<'bus, Bus>,
         request_pipe: Requester<I>,
         card_issuers_data: Option<&[u8]>,
     ) -> Self {
@@ -128,7 +128,7 @@ where
     }
 }
 
-impl<Bus, I, const N: usize> Pipe<Bus, I, N>
+impl<'bus, Bus, I, const N: usize> Pipe<'bus, Bus, I, N>
 where
     Bus: 'static + UsbBus,
     I: 'static + Interchange<REQUEST = Vec<u8, N>, RESPONSE = Vec<u8, N>>,