[pulseaudio-tickets] [Bug 96272] PulseAudio does not set up all outputs on a soundcard as separate output devices by default

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96272

--- Comment #4 from Raymond <superquad.vortex2 at gmail.com> ---
if the number of playback stream cannot read from GCAP register, it is hardcode

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/plain/sound/pci/hda/hda_intel.c

        /* read number of streams from GCAP register instead of using
         * hardcoded value
         */
        chip->capture_streams = (gcap >> 8) & 0x0f;
        chip->playback_streams = (gcap >> 12) & 0x0f;
        if (!chip->playback_streams && !chip->capture_streams) {
                /* gcap didn't give any info, switching to old method */

                switch (chip->driver_type) {
                case AZX_DRIVER_ULI:
                        chip->playback_streams = ULI_NUM_PLAYBACK;
                        chip->capture_streams = ULI_NUM_CAPTURE;
                        break;
                case AZX_DRIVER_ATIHDMI:
                case AZX_DRIVER_ATIHDMI_NS:
                        chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
                        chip->capture_streams = ATIHDMI_NUM_CAPTURE;
                        break;
                case AZX_DRIVER_GENERIC:
                default:
                        chip->playback_streams = ICH6_NUM_PLAYBACK;
                        chip->capture_streams = ICH6_NUM_CAPTURE;
                        break;
                }
        }

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