At Wed, 04 Nov 2009 12:45:20 -0700, Troy Kisky wrote: > > Takashi Iwai wrote: > > At Tue, 3 Nov 2009 12:22:37 -0700, > > Troy Kisky wrote: > >> Poulsbo(US15W) cannot have any corb registers initialized > >> when using single_cmd mode. > >> When send_cmd timeout occur, note error. > > > > Could you be more specific? What errors do you get? > > > > And, how it goes to single_cmd mode? The single_cmd mode is very last > > resort, and reaching there means already a serious problem. > > > > > > thanks, > > > > Takashi > > > No error messages, but the response read is always 0. This is odd. Something is already wrong, then. > For testing, I passed single_cmd=1 as a modules option. > > HDAudio_03.pdf says, "If implemented, these registers must not be used > at the same time as the CORB and RIRB command/response mechanisms, as the operations > will conflict." I know this, but actually this never be a problem in the real hardware. So, it's left there. > Plus, if the RIRB irq is enabled, the interrupt routine will print out a > spurious interrupt message. > > That said, my hardware is switching to single_cmd eventually, even if not > passed as a module option. But at least now, when that happens my audio > isn't dead. It's not dead but living-dead :) The single_cmd mode is really only for debugging. It's never for any running system. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
