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Fixes reading BLE Remote Descriptor (#6903)

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Rodrigo Garcia 2022-06-24 07:52:08 -03:00 committed by GitHub
parent 9ab81837a2
commit e1b56fca0a
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 2 deletions
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21
libraries/BLE/src/BLERemoteDescriptor.cpp
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@ -51,9 +51,26 @@ BLEUUID BLERemoteDescriptor::getUUID() {
void BLERemoteDescriptor::gattClientEventHandler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t* evtParam) { void BLERemoteDescriptor::gattClientEventHandler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t* evtParam) {
switch(event) { switch(event) {
// ESP_GATTC_READ_DESCR_EVT
// This event indicates that the server has responded to the read request.
//
// read:
// - esp_gatt_status_t status
// - uint16_t conn_id
// - uint16_t handle
// - uint8_t* value
// - uint16_t value_len
case ESP_GATTC_READ_DESCR_EVT: case ESP_GATTC_READ_DESCR_EVT:
if (evtParam->read.handle != getHandle()) // If this event is not for us, then nothing further to do.
break; if (evtParam->read.handle != getHandle()) break;
// At this point, we have determined that the event is for us, so now we save the value
if (evtParam->read.status == ESP_GATT_OK) {
// it will read the cached value of the descriptor
m_value = std::string((char*) evtParam->read.value, evtParam->read.value_len);
} else {
m_value = "";
}
// Unlock the semaphore to ensure that the requestor of the data can continue.
m_semaphoreReadDescrEvt.give(); m_semaphoreReadDescrEvt.give();
break; break;