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-rw-r--r--src/device/usbd.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/device/usbd.h b/src/device/usbd.h
index 8193c4ce0..2e34b25ac 100644
--- a/src/device/usbd.h
+++ b/src/device/usbd.h
@@ -69,7 +69,7 @@ uint8_t const * tud_descriptor_device_cb(void);
// Invoked when received GET CONFIGURATION DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
-uint8_t const * tud_descriptor_configuration_cb(void);
+uint8_t const * tud_descriptor_configuration_cb(uint8_t index);
// Invoked when received GET STRING DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete