Change getting the capabilities structure to a callback instead of an extern struct.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/class/usbtmc/usbtmc_device.h b/src/class/usbtmc/usbtmc_device.h
index 9f1020e58..adccd65e1 100644
--- a/src/class/usbtmc/usbtmc_device.h
+++ b/src/class/usbtmc/usbtmc_device.h
@@ -49,12 +49,6 @@
  *  Functions to be implemeted by the class implementation
  */
 
-#if (CFG_TUD_USBTMC_ENABLE_488)
-extern usbtmc_response_capabilities_488_t const tud_usbtmc_app_capabilities;
-#else
-extern usbtmc_response_capabilities_t const tud_usbtmc_app_capabilities;
-#endif
-
 // In order to proceed, app must call call tud_usbtmc_start_bus_read(rhport) during or soon after:
 // * tud_usbtmc_app_open_cb
 // * tud_usbtmc_app_msg_data_cb
@@ -64,6 +58,12 @@ extern usbtmc_response_capabilities_t const tud_usbtmc_app_capabilities;
 // * (successful) tud_usbtmc_app_check_abort_bulk_in_cb
 // * (successful) tud_usmtmc_app_bulkOut_clearFeature_cb
 
+#if (CFG_TUD_USBTMC_ENABLE_488)
+usbtmc_response_capabilities_488_t const * tud_usbtmc_get_capabilities_cb(void);
+#else
+usbtmc_response_capabilities_t const * tud_usbtmc_get_capabilities_cb(void);
+#endif
+
 void tud_usbtmc_app_open_cb(uint8_t interface_id);
 
 bool tud_usbtmc_app_msgBulkOut_start_cb(usbtmc_msg_request_dev_dep_out const * msgHeader);