Merge pull request #2866 from HiFiPhile/uac_fix

Fix 2 UAC issue

1 files changed, 9 insertions, 1 deletions

diff --git a/src/class/audio/audio_device.c b/src/class/audio/audio_device.c
index 136f658df..66430feab 100644
--- a/src/class/audio/audio_device.c
+++ b/src/class/audio/audio_device.c
@@ -1810,7 +1810,8 @@ static bool audiod_get_interface(uint8_t rhport, tusb_control_request_t const *
   uint8_t const *dummy;
 
   TU_VERIFY(audiod_get_AS_interface_index_global(itf, &func_id, &idxItf, &dummy));
-  TU_VERIFY(tud_control_xfer(rhport, p_request, &_audiod_fct[func_id].alt_setting[idxItf], 1));
+  _audiod_fct[func_id].ctrl_buf[0] = _audiod_fct[func_id].alt_setting[idxItf];
+  TU_VERIFY(tud_control_xfer(rhport, p_request, _audiod_fct[func_id].ctrl_buf, 1));
 
   TU_LOG2("  Get itf: %u - current alt: %u\r\n", itf, _audiod_fct[func_id].alt_setting[idxItf]);
 
@@ -2137,6 +2138,13 @@ static bool audiod_control_complete(uint8_t rhport, tusb_control_request_t const
           // Check if entity is present and get corresponding driver index
           TU_VERIFY(audiod_verify_entity_exists(itf, entityID, &func_id));
 
+#if CFG_TUD_AUDIO_ENABLE_EP_IN && CFG_TUD_AUDIO_EP_IN_FLOW_CONTROL
+          uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
+          if (_audiod_fct[func_id].bclock_id_tx == entityID && ctrlSel == AUDIO_CS_CTRL_SAM_FREQ && p_request->bRequest == AUDIO_CS_REQ_CUR) {
+            _audiod_fct[func_id].sample_rate_tx = tu_unaligned_read32(_audiod_fct[func_id].ctrl_buf);
+          }
+#endif
+
           // Invoke callback
           return tud_audio_set_req_entity_cb(rhport, p_request, _audiod_fct[func_id].ctrl_buf);
         }