diff --git a/usb/src/dev_handler.rs b/usb/src/dev_handler.rs
index 21fc050..f3057ba 100644
--- a/usb/src/dev_handler.rs
+++ b/usb/src/dev_handler.rs
@@ -140,7 +140,7 @@ impl DeviceInner {
         let closed = Arc::new(AtomicBool::new(false));
         let (mut framer, out_framer) = Self::init_framers(&handle, &read_ep);
 
-        let mut read_transfer = Transfer::new_bulk(&handle, read_ep.address, 1024);
+        let mut read_transfer = Transfer::new_bulk(&handle, read_ep.address, read_ep.max_packet_size);
         read_transfer.set_timeout(READ_DURATION);
         read_transfer.set_callback(move |buf| {
             let Some(buf) = buf else {
diff --git a/usb/src/endpoint.rs b/usb/src/endpoint.rs
index 4217bff..22cd902 100644
--- a/usb/src/endpoint.rs
+++ b/usb/src/endpoint.rs
@@ -9,7 +9,8 @@ pub struct Endpoint {
     pub iface: u8,
     pub setting: u8,
     pub address: u8,
-    pub transfer_type: TransferType
+    pub transfer_type: TransferType,
+    pub max_packet_size: usize,
 }
 
 pub fn find_endpoint<T: UsbContext>(
@@ -38,6 +39,7 @@ pub fn find_endpoint<T: UsbContext>(
                             setting: interface_desc.setting_number(),
                             address: endpoint_desc.address(),
                             transfer_type: endpoint_desc.transfer_type(),
+                            max_packet_size: endpoint_desc.max_packet_size() as usize,
                         });
                     }
                 }