February 2008 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] Salsa-lib add snd_pcm_get_params
by Matthieu CASTET 01 Feb '08

01 Feb '08

Hi, in 0.0.14, snd_pcm_get_params is missing. Is is not even in the stub form in pcm_macros.h. Why this function is missing ? As it is quite trivial, could it be added in pcm_macros.h or pcm_params.c. Thanks Matthieu

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[alsa-devel] [PATCH/KCONFIG] - Add SUPERH depends to sound/soc/sh/Kconfig
by Kristoffer Ericson 01 Feb '08

01 Feb '08

Currently you will see an empty "SoC Audio support for SuperH" menu when building for other archs (example pxa). This patch adds "depends on SUPERH" to remove that empty menu. signed-off-by: Kristoffer Ericson <kristoffer.ericson(a)gmail.com> diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig index f03220d..4c1e013 100644 --- a/sound/soc/sh/Kconfig +++ b/sound/soc/sh/Kconfig @@ -1,4 +1,5 @@ menu "SoC Audio support for SuperH" + depends on SUPERH config SND_SOC_PCM_SH7760 tristate "SoC Audio support for Renesas SH7760"

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[alsa-devel] [PATCH] Mono voice playback volume for WM8753
by Mark Brown 01 Feb '08

01 Feb '08

From: Mike Montour <mail(a)mmontour.net> Voice playback volume is in register bits 0:2, not 4:6. Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> Cc: Werner Almesberger <werner(a)openmoko.org> --- I don't have a Signed-off-by from Mike but the change is sufficiently obvious. sound/soc/codecs/wm8753.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c index ba16375..0f23659 100644 --- a/sound/soc/codecs/wm8753.c +++ b/sound/soc/codecs/wm8753.c @@ -280,7 +280,7 @@ SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, 1, 0 SOC_SINGLE("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1), SOC_SINGLE("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1), -SOC_SINGLE("Mono Voice Playback Volume", WM8753_MOUTM2, 4, 7, 1), +SOC_SINGLE("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1), SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0), SOC_ENUM("Bass Boost", wm8753_enum[0]), -- 1.5.3.8

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[alsa-devel] es1938 - patch trying to improve capture hw pointer reads
by Hermann Lauer 01 Feb '08

01 Feb '08

Hello, with the Solo1 (es1938) I got a lot of xrun's during capture on my machine. Tracing that down it seems to be comming from reading ocassionaly bad hw pointers from the chip. Appended is a patch against linux-2.6.23.12 which uses more checking to avoid that false pointer reads. Failed reads are giving back the last good value read instead of spinning in a tight loop, which seems more appropriate to me in an interrupt. I think I saw this trick used in another driver. On my machine xruns seems to be gone with that patch. If anybody is interested, mmaped capture seems also to be doable with some tricks, still testing this... Greetings Hermann -- Netzwerkadministration/Zentrale Dienste, Interdiziplinaeres Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg IWR; INF 368; 69120 Heidelberg; Tel: (06221)54-8236 Fax: -5224 Email: Hermann.Lauer(a)iwr.uni-heidelberg.de

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[alsa-devel] Roland UA-30 works
by Victor Roetman 01 Feb '08

01 Feb '08

I just tested a Roland UA-30 USB sound card, and it seems to work fine. I wanted to add it to the sound card matrix on http://www.alsa-project.org/main/index.php/Matrix:Vendor-Roland_Edirol but when I click edit, it says "This page has been locked to prevent editing." Can someone add this for me? Or tell me how to add it? On Ubuntu 7.10 it seems to work fine with playback and with recording, and when the 44.1/48 kHz switch is changed, the device seems to be removed and added again with the correct frequency shown in /proc/asound/cards.

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