[LAU] Repeated USB error/warning notification

Hey hey, I haven several MIDI devices plugged in either directly as USB MIDI devices or using a USB-MIDI cable. They ae plugged into hubs, if that is important. Now when I connect them through the ALSA seq API, I sometimes get notifications lilke these, printed on every console, if I change: [1354175.824801] usb 1-4.1: urb status -32 The ID in brackets changes. Any idea what this is and how it can be fixed? I have seen that this is some kind of general USB kernel warning, but haven't been able to find a solution, yet. Thanks for any help and best wishes, Jeanette -------- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s But now I'm stronger than yesterday <3 (Britney Spears)