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The Bluetooth Core spec does not allow a LE PA Create sync command to be sent to Controller if another one is pending (Vol 4, Part E, page 2493). In order to avoid this issue, the HCI_CONN_CREATE_PA_SYNC was added to mark that the LE PA Create Sync command has been sent for a hcon. Once the PA Sync Established event is received, the hcon flag is erased and the next pending hcon is handled. Signed-off-by: Iulia Tanasescu <iulia.tanasescu@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>