Takashi Iwai wrote: >> On Tue, 8 Oct 2013 baumber@xxxxxxxxxxx wrote: >>> https://bugzilla.kernel.org/show_bug.cgi?id=62691 >>> >>> Summary: no reset_resume for driver snd-usb-audio for logitech headset H600 > > How about simply applying the same resume for reset_resume like below? > > --- > > diff --git a/sound/usb/card.c b/sound/usb/card.c > index 9d9de8d..c591a83 100644 > --- a/sound/usb/card.c > +++ b/sound/usb/card.c > @@ -747,6 +747,7 @@ static struct usb_driver usb_audio_driver = { > .disconnect = usb_audio_disconnect, > .suspend = usb_audio_suspend, > .resume = usb_audio_resume, > + .reset_resume = usb_audio_resume, > .id_table = usb_audio_ids, > .supports_autosuspend = 1, > }; When the device was reset, the state of all mixer controls has been lost. Disconnecting the card (the default behaviour without reset_resume) is the correct thing to do in this situation. Userspace should pick up the USB device again when it reappears. (But it doesn't. Is this a PulseAudio or a KDE problem?) And why does the kernel whine about the lack of a callback that is documented as being optional? Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
