Hi Andre, > To avoid flooding the host with useless advertising reports during > background scan, we enable the duplicates filter from controller. > > However, enabling duplicates filter requires a small change in > background scan routine in order to fix the following scenario: > 1) Background scan is running. > 2) A device disconnects and starts advertising. > 3) Before host gets the disconnect event, the advertising is reported > to host. Since there is no pending LE connection at that time, > nothing happens. > 4) Host gets the disconnection event and adds a pending connection. > 5) No advertising is reported (since controller is filtering) and the > connection is never established. > > So, to address this scenario, we should always restart background scan > to unsure we don't miss any advertising report (due to duplicates > filter). don’t we need a timer that restarts the background scan in a regular interval? Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
