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Fix attributes not found with 16/32bit UUIDs.

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* Some peripherals will advertise 16/32bit UUIDs but when queried for their handles
they do not convert the UUID to 128 bit locally and will return attribute not found.

This patch will query the peripheral a second time with a 128bit converted UUID.
This commit is contained in:
h2zero
2020-12-28 15:40:01 -07:00
parent 27fc792952
commit 39a3a63f80
3 changed files with 36 additions and 1 deletions
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src/NimBLERemoteCharacteristic.cpp
+12 -1
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@@ -244,7 +244,7 @@ NimBLERemoteDescriptor* NimBLERemoteCharacteristic::getDescriptor(const NimBLEUU
for(auto &it: m_descriptorVector) {
if(it->getUUID() == uuid) {
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: found");
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: found the descriptor with uuid: %s", uuid.toString().c_str());
return it;
}
}
@@ -254,7 +254,18 @@ NimBLERemoteDescriptor* NimBLERemoteCharacteristic::getDescriptor(const NimBLEUU
if(m_descriptorVector.size() > prev_size) {
return m_descriptorVector.back();
}
// If the request was successful but 16/32 bit descriptor not found
// try again with the 128 bit uuid.
if(uuid.bitSize() == BLE_UUID_TYPE_16 ||
uuid.bitSize() == BLE_UUID_TYPE_32)
{
NimBLEUUID uuid128(uuid);
uuid128.to128();
return getDescriptor(uuid128);
}
}
NIMBLE_LOGD(LOG_TAG, "<< getDescriptor: Not found");
return nullptr;
} // getDescriptor