Hi Nazmul, On Thu, Sep 20, 2018 at 1:11 AM, Nazmul Alam <fadedreamz@xxxxxxxxx> wrote: > I am trying to run two bluetooth dongles simultaneously for two > separate devices. > One device is communicating over classic BT while the other one is using BLE. > When both devices are running (approximately 250hz sampling rate), the > BLE is dropping packets (most of the samples are gone). > I am using pygatt to capture the data and it appears to happen when > the pygatt chokes and python takes 100% of a single cpu core. > > bluetoothctl also shows strange behavior with two controllers. Even > when a particular controller is selected, it can not show the > paired-devices correctly, unless the other one is plugged out (the mac > is different on both dongles). Try with a more recent version, there were some improvement to handle multiple adapters better. > Now, the question is, in bluez is it problematic to run two dongles > simultaneously considering both of them are active and pushing data? > > I am trying to get a more experienced opinion to pinpoint the > problematic part of the setup (pygatt or bluez). Btw, pygatt appears to be using gatttool which is deprecated, not idea why people keep using that. > bluez - 5.41 > arm64 - kernel 4.4+ > dongles - csr 4.0 -- Luiz Augusto von Dentz
