From 307eb8cc8e94b678dd5c52d3a2bf8d4020f017d2 Mon Sep 17 00:00:00 2001 From: David Lechner Date: Tue, 28 Apr 2020 12:51:49 -0500 Subject: [PATCH] src/gatt-client: allow "command" even when property not set This modifies the GATT client characteristic WriteValue D-Bus method to not check that the characteristic supports the requested type of write when the "type" option is set to "command". Before this change, if the "type" option was used and it was set to "reliable" or "request", then BlueZ would attempt the write even if the characteristic does not support that write type. On the other hand, if "type" was set to "command" or was not specified, the method would return a org.bluez.Error.NotSupported error without attempting to write. After this change, the WriteValue method will consistently always ignore the characteristic properties and attempt to write when the "type" option is used instead of having a different behavior for the "command" type. --- src/gatt-client.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/gatt-client.c b/src/gatt-client.c index a9bfc2802..20c3fbec2 100644 --- a/src/gatt-client.c +++ b/src/gatt-client.c @@ -1050,8 +1050,8 @@ static DBusMessage *characteristic_write_value(DBusConnection *conn, return NULL; } - if ((type && strcasecmp(type, "command")) || offset || - !(chrc->props & BT_GATT_CHRC_PROP_WRITE_WITHOUT_RESP)) + if ((type && strcasecmp(type, "command")) || offset || (!type && + !(chrc->props & BT_GATT_CHRC_PROP_WRITE_WITHOUT_RESP))) goto fail; supported = true; -- 2.47.3