diff --git a/src/device/usbd.c b/src/device/usbd.c index 8b5e4d745..ea9ab91b6 100644 --- a/src/device/usbd.c +++ b/src/device/usbd.c @@ -1386,7 +1386,10 @@ bool usbd_edpt_iso_alloc(uint8_t rhport, uint8_t ep_addr, uint16_t largest_packe TU_ASSERT(tu_edpt_number(ep_addr) < CFG_TUD_ENDPPOINT_MAX); - return dcd_edpt_iso_alloc(rhport, ep_addr, largest_packet_size); + if (dcd_edpt_iso_alloc) + return dcd_edpt_iso_alloc(rhport, ep_addr, largest_packet_size); + else + return false; } bool usbd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const * desc_ep) @@ -1396,7 +1399,10 @@ bool usbd_edpt_iso_activate(uint8_t rhport, tusb_desc_endpoint_t const * desc_ep TU_ASSERT(tu_edpt_number(desc_ep->bEndpointAddress) < CFG_TUD_ENDPPOINT_MAX); TU_ASSERT(tu_edpt_validate(desc_ep, (tusb_speed_t) _usbd_dev.speed)); - return dcd_edpt_iso_activate(rhport, desc_ep); + if (dcd_edpt_iso_activate) + return dcd_edpt_iso_activate(rhport, desc_ep); + else + return false; } #endif