Hi, I"m a newbi for this community. I'm happy to get your advices and information about PulseAudio, to make a plan to solve my issue. Currently I'm working in ALSA/FFADO community to add support of firewire sound devices into ALSA. I've already written some candidates of kernel-land drivers for 80-90 devices. [alsa-devel] [RFC v2][PATCH 00/38] Enhancement for support of some firewire devices http://mailman.alsa-project.org/pipermail/alsa-devel/2013-December/070424.html [alsa-devel] [RFC][PATCH 0/8] A new driver for OXFW970/971 based devices http://mailman.alsa-project.org/pipermail/alsa-devel/2014-January/070705.html I note that the drivers are not going to be merged in upstream because I need some adjustment for related projects. My aim to show my drivers is to make some discussion between ALSA/FFADO and PulseAudio. Well, I found some issues between the drivers and PulseAudio's modules. When I modprobe my drivers and plug-in my devices, then 'module-udev-detect' realize it via sysfs/udev. The module tries to load 'module-alsa-card' but it always failed because it cannot decide 'working profile' for my devices. See this log: [pulseaudio] module-alsa-card.c: Failed to find a working profile. [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="firewire-0x000d6c04007feef8" card_name="alsa_card.firewire-0x000d6c04007feef8" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes card_properties="module-udev-detect.discovered=1""): initialization failed. [pulseaudio] module-udev-detect.c: Tried to configure /devices/pci0000:00/0000:00:1e.0/0000:0c:06.0/fw1/fw1.0/sound/card1 (alsa_card.firewire-0x000d6c04007feef8) more often than 5 times in 10s (Under Ubuntu 13.10, PulseAudio 4.0 with some patches. http://packages.ubuntu.com/saucy/pulseaudio) I hope to get advices for this issue. I'm sorry but currently I have little time to make full solutions for this issue because I have some tasks in front of my face for ALSA/FFADO. So I want to make a plan for this issue in this time. Regards Takashi Sakamoto o-takashi at sakamocchi.jp
