[alsa-devel] ASoC: BeagleBoard driver development (PCM3168)
wendelin klimann
wklimann at gmail.com
Sat Feb 16 13:05:02 CET 2013
Hello and thanks for the support!
2013/2/11 Peter Ujfalusi <peter.ujfalusi at ti.com>
> Hi,
>
> On 02/10/2013 10:50 PM, wendelin klimann wrote:
> > hello
> >
> > I try to implement an PCM3168 audio codec from TI to the BeagleBoard but
> > actually i am stuck and it would be rally nice if one could help me a
> > little bit.
> > My ALSA driver version is 1.0.24 and i use an 3.2.18 kernel.
> > As a startingpoint i used the files
> >
> > */linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3008.c*
> > */linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3008.h*
> >
> >
> > The files (see end of e-mail)
> >
> > */linux-mainline-3.2.18-r121b/git/sound/soc/omap/pcm3168_soundcard.c
> > /linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3168.c
> > /linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3168.h*
> >
> > could be compiled successfully and also the insmod loads the modules
> >
> > *$: insmod
> > /lib/modules/3.2.18/kernel/sound/soc/omap/snd-soc-pcm3168_soundcard.ko*
> >
> > *$: lsmod*
> > Module Size Used by
> > snd_soc_pcm3168 1886 0
> > snd_soc_pcm3168_soundcard 2094 0
> > twl4
> > 030_madc_hwmon 2569 0
> > snd_soc_omap3beagle 2239 0
> > rtc_twl 4382 0
> > snd_soc_twl4030 37616 1
> > rtc_ds1307 6642 0
> > snd_soc_omap 3521 1
> > snd_soc_omap_mcbsp 8374 1
> > snd_soc_core 107346 6
> >
> snd_soc_pcm3168,snd_soc_pcm3168_soundcard,snd_soc_omap3beagle,snd_soc_twl4030,snd_soc_omap,snd_soc_omap_mcbsp
> > regmap_spi 1263 1 snd_soc_core
> > snd_pcm 78039 4
> > snd_soc_twl4030,snd_soc_omap,snd_soc_omap_mcbsp,snd_soc_core
> > snd_timer 18848 1 snd_pcm
> > snd 57930 3 snd_soc_core,snd_pcm,snd_timer
> > soundcore 6954 1 snd
> > iptable_nat 3819 0
> > snd_page_alloc 4979 1 snd_pcm
> > nf_nat 16515 1 iptable_nat
> > nf_conntrack_ipv4 12018 3 iptable_nat,nf_nat
> > nf_conntrack 71219 3 iptable_nat,nf_nat,nf_conntrack_ipv4
> > nf_defrag_ipv4 1379 1 nf_conntrack_ipv4
> > ip_tables 10537 1 iptable_nat
> > x_tables 16505 2 iptable_nat,ip_tables
> > gpio_keys 7117 0
> > autofs4 20492 2
> >
> > but the new ALSA device is not recognized
> >
> > *$:aplay -l*
> > **** List of PLAYBACK Hardware Devices ****
> > card 0: omap3beagle [omap3beagle], device 0: TWL4030 twl4030-hifi-0 []
> > Subdevices
> > : 1/1
> > Subdevice #0: subdevice #0
> >
> > So i tried to get some information in
> >
> > *$: cd /sys/kernel/debug/asoc*
> >
> > */sys/kernel/debug/asoc$: ls*
> > codecs dais omap3beagle pcm3168 platforms
> >
> > */sys/kernel/debug/asoc$: cat codecs*
> > pcm3168-codec.0
> > twl4030-codec
> >
> > */sys/kernel/debug/asoc$: cat dais*
> > pcm3168-hifi
> > twl4030-voice
> > twl4030-hifi
> > omap-mcbsp-dai.4
> > omap-mcbsp-dai.3
> > omap-mcbsp-dai.2
> > omap-mcbsp-dai.1
> > omap-mcbsp-dai.0
> >
> > */sys/kernel/debug/asoc$: cat platforms*
> > omap-pcm-audio
> > snd-soc-dummy
> >
> > */sys/kernel/debug/asoc$:cd omap3beagle*
> >
> > */sys/kernel/debug/asoc/omap3beagle$:ls*
> > dapm dapm_pop_time twl4030-codec
> >
> > */sys/kernel/debug/asoc/omap3beagle$:cd /sys/kernel/debug/asoc/pcm3168*
> >
> > */sys/kernel/debug/asoc/pcm3168$: ls*
> > dapm_pop_time
> >
> >
> > At this point i have no idea how to solve the problem or how to debug
> > further and i would be very grateful for any hint.
> >
> > Thanks a lot
> > Wendelin
> >
> >
> >
> >
> > *
> >
> ***********************************************************************************************
> > *
> > /linux-mainline-3.2.18-r121b/git/sound/soc/omap/pcm3168_soundcard.c
> > *
> > **
> >
> ***********************************************************************************************
> >
> > */*
> > * PCM3168 ASoC driver for BeagleBoard.
> > *
> > * Author: Hugo Villeneuve
> > * Copyright (C) 2008 Lyrtech inc
> > *
> > * adapted by Klimann Wendelin <wklimann at hotmail.com>
> > *
> > *
> > * Based on ASoC driver for TI DAVINCI EVM platform, original copyright
> > follow:
> > * Copyright: (C) 2007 MontaVista Software, Inc., <source at mvista.com>
> > *
> > * This program is free software; you can redistribute it and/or modify
> > * it under the terms of the GNU General Public License version 2 as
> > * published by the Free Software Foundation.
> > */
> >
> > #include <linux/clk.h>
> > #include <linux/platform_device.h>
> > #include <linux/module.h>
> > #include <linux/moduleparam.h>
> > #include <linux/timer.h>
> > #include <linux/interrupt.h>
> > #include <linux/platform_device.h>
> > #include <linux/gpio.h>
> > #include <sound/core.h>
> > #include <sound/pcm.h>
> > #include <sound/pcm_params.h>
> > #include <sound/soc.h>
> > #include <sound/soc-dapm.h>
> >
> > #include <asm/mach-types.h>
> > //#include <asm/dma.h>
> > #include <mach/hardware.h>
> > #include <mach/gpio.h>
> > //#include <mach/edma.h>
> > #include <plat/mcbsp.h>
> >
> > #include "omap-mcbsp.h"
> > #include "omap-pcm.h"
> >
> > #include "../codecs/pcm3168.h"
> >
> > /*
> > * CLKX and CLKR are the inputs for the Sample Rate Generator.
> > * FSX and FSR are outputs, driven by the sample Rate Generator.
> > */
> > /*
> > * SND_SOC_DAIFMT_CBS_CFS
> > * for codec in slave mode
> > */
> > #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
> > SND_SOC_DAIFMT_CBM_CFM | \
> > SND_SOC_DAIFMT_IB_NF)
> >
> > static int pcm3168_hw_params(struct snd_pcm_substream *substream,
> > struct snd_pcm_hw_params *params)
> > {
> > struct snd_soc_pcm_runtime *rtd = substream->private_data;
> > struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
> > int fs;
> > int ret = 0;
> >
> >
> > printk("in hw_params -> by kli");
> >
> >
> > /* Fsref can be 8000 to 96000. */
> > fs = params_rate(params);
> >
> > /* set cpu DAI configuration */
> > ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
> > if (ret < 0) {
> > printk(KERN_ERR "can't set cpu DAI configuration\n");
> > return ret;
> > }
> >
> > pr_debug("pcm3168_hw_params: rate = %d Hz\n", fs);
> >
> > return 0;
> > }
> >
> > static struct snd_soc_ops pcm3168_ops = {
> > .hw_params = pcm3168_hw_params,
> > };
> >
> > /* omap-pcm3168 digital audio interface glue - connects codec <--> CPU */
> > static struct snd_soc_dai_link pcm3168_dai = {
> > .name = "PCM3168", /* Codec name */
> > .stream_name = "PCM3168",
> > .cpu_dai_name = "omap-mcbsp-dai.2",
>
> Are you sure you connect the codec to McBSP2?
> If so I think it is better to disable the omap-twl4030 driver, but it
> should
> not cause problems if you have it, just make sure you are not running the
> two
> card at the same time.
>
The Beagleboard uses the omap3beagle.c file to include the TWL4030 and it
uses the "omap-mcbsp-dai.1" interface so i think there should be no proplem
in using booth drivers at the same time
>
> > .codec_dai_name = "pcm3168-hifi",
> > .codec_name = "pcm3168-codec",
>
> codec name should be: pcm3168-codec.0
>
Thanks that helpt to get the (old machine-driver) driver to load correctly
and now i can start with the mcbsp and hardware-testing.
>
> > .platform_name = "omap-pcm-audio",
> > .ops = &pcm3168_ops,
> > };
> >
> > /* omap-pcm3168 audio machine driver */
> > static struct snd_soc_card snd_soc_pcm3168 = {
> > .name = "pcm3168", // -> "OMAP pcm3168"
> > .owner = THIS_MODULE,
> > .dai_link = &pcm3168_dai,
> > .num_links = 1,
> > };
> >
> > /* pcm3168 audio private data */
> > static struct pcm3168_setup_data pcm3168_pcm3168_setup = {
> > // .dem0_pin = GPIO(45),
> > // .dem1_pin = GPIO(46),
> > // .pdad_pin = GPIO(47),
> > // .pdda_pin = GPIO(38),
> > };
> >
> > struct platform_device pcm3168_codec = {
> > .name = "pcm3168-codec",
> > .id = 0,
> > .dev = {
> > .platform_data = &pcm3168_pcm3168_setup,
> > },
> > };
> >
> >
> >
> > static struct platform_device *pcm3168_snd_device;
> >
> > static int __init pcm3168_init(void)
> > {
> > int ret;
> >
> > printk(KERN_ALERT "in init soundcard \n");
> >
> > if (!(machine_is_omap3_beagle()))
> > return -ENODEV;
> >
> > platform_device_register(&pcm3168_codec);
> >
> > pcm3168_snd_device = platform_device_alloc("soc-audio", 0);
> > if (!pcm3168_snd_device) {
> > printk(KERN_ERR "platform device allocation failed\n");
> > return -ENOMEM;
> > }
> >
> > platform_set_drvdata(pcm3168_snd_device, &snd_soc_pcm3168);
> > // platform_device_add_data(pcm3168_snd_device, &pcm3168_snd_data,
> > // sizeof(pcm3168_snd_data));
> >
> > /* ret = platform_device_add_resources(pcm3168_snd_device,
> > pcm3168_snd_resources,
> > ARRAY_SIZE(pcm3168_snd_resources));
> > if (ret) {
> > printk(KERN_ERR "platform device add resources failed\n");
> > goto error;
> > }
> > */
> > ret = platform_device_add(pcm3168_snd_device);
> > if (ret)
> > goto error;
> >
> > return ret;
> >
> > error:
> > platform_device_put(pcm3168_snd_device);
> > return ret;
> > }
>
> You should update you machine driver to use snd_soc_register_card() see
> other
> machine drivers as example (omap-twl4030.c is in the same directory for
> example and it is really simple).
>
I took the omap3beagle.c (and the omap-twl4030.c with same results) file as
template and adapted it. The driver can be compiled correctly but when i
load it it is not inseting the corresponding codec (snd_soc_pcm3168.ko).
Even if i load the snd_soc_pcm3168.ko driver manually and after load the
snd_soc_pcm3168_soundcard.ko driver i do not find the soundcard and the
codec in:
$/sys/kernel/debug/asoc$: ls
codecs dais omap3beagle platforms
$/sys/kernel/debug/asoc$: cat codecs
twl4030-codec
******************************************************************************************************************************************
* new
machine-driver:
*
*
/linux-mainline-3.2.18-r121b/git/sound/soc/omap/pcm3168_soundcard.c
*
*
*
*
START
*
******************************************************************************************************************************************
/*
* PCM3168 ASoC driver for BeagleBoard.
*
* based on:
* > omap3beagle.c -- SoC audio for OMAP3 Beagle
* > Author: Steve Sakoman <steve at sakoman.com>
*
* adapted by Klimann Wendelin <wklimann at hotmail.com>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <plat/mcbsp.h>
#include "omap-mcbsp.h"
#include "omap-pcm.h"
static int pcm3168_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
unsigned int fmt;
int ret;
fmt = SND_SOC_DAIFMT_DSP_B |
SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF;
/* Set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
printk(KERN_ERR "can't set codec DAI configuration\n");
return ret;
}
/* Set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0) {
printk(KERN_ERR "can't set cpu DAI configuration\n");
return ret;
}
/* Set the codec system clock for DAC and ADC */
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
SND_SOC_CLOCK_IN);
if (ret < 0) {
printk(KERN_ERR "can't set codec system clock\n");
return ret;
}
return 0;
}
static struct snd_soc_ops pcm3168_ops = {
.hw_params = pcm3168_hw_params,
};
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link pcm3168_dai = {
.name = "PCM3168",
.stream_name = "PCM3168",
.cpu_dai_name = "omap-mcbsp-dai.2",
.platform_name = "omap-pcm-audio",
.codec_dai_name = "pcm3168-hifi",
.codec_name = "pcm3168-codec.0",
.ops = &pcm3168_ops,
};
/* Audio machine driver */
static struct snd_soc_card snd_soc_pcm3168 = {
.name = "pcm3168",
.owner = THIS_MODULE,
.dai_link = &pcm3168_dai,
.num_links = 1,
};
static int __devinit pcm3168_soc_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &snd_soc_pcm3168;
int ret;
pr_info("OMAP3 Beagle/Devkit8000 SoC init\n");
card->dev = &pdev->dev;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
return 0;
}
static int __devexit pcm3168_soc_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver pcm3168_driver = {
.driver = {
.name = "pcm3168-soc-audio",
.owner = THIS_MODULE,
},
.probe = pcm3168_soc_probe,
.remove = __devexit_p(pcm3168_soc_remove),
};
static int __init pcm3168_soc_init(void)
{
return platform_driver_register(&pcm3168_driver);
}
module_init(pcm3168_soc_init);
static void __exit pcm3168_soc_exit(void)
{
platform_driver_unregister(&pcm3168_driver);
}
module_exit(pcm3168_soc_exit);
MODULE_AUTHOR("Klimann Wendelin <wklimann at hotmail.com>");
MODULE_DESCRIPTION("ALSA SoC PCM3168 add on Soundcard");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcm3168-soc-audio");
******************************************************************************************************************************************
* new
machine-driver:
*
*
/linux-mainline-3.2.18-r121b/git/sound/soc/omap/pcm3168_soundcard.c
*
*
*
*
END
*
******************************************************************************************************************************************
>
>
> >
> > static void __exit pcm3168_exit(void)
> > {
> > platform_device_unregister(pcm3168_snd_device);
> > platform_device_unregister(&pcm3168_codec);
> > }
> >
> > module_init(pcm3168_init);
> > module_exit(pcm3168_exit);
> >
> > MODULE_AUTHOR("Klimann Wendelin <wklimann at hotmail.com>");
> > MODULE_DESCRIPTION("PCM3168 Beagle ASoC driver");
> > MODULE_LICENSE("GPL");
> > MODULE_ALIAS("platform:pcm3168-soc-audio");
> >
> >
> >
> >
> > *
> >
> ***********************************************************************************************
> > *
> > /linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3168.c
> > *
> > **
> >
> ***********************************************************************************************
> >
> > */*
> > * ALSA Soc PCM3168 codec support
> > *
> > * Author: Hugo Villeneuve
> > * Copyright (C) 2008 Lyrtech inc
> > *
> > * adapted by Klimann Wendelin
> > *
> > *
> > * Based on AC97 Soc codec, original copyright follow:
> > * Copyright 2005 Wolfson Microelectronics PLC.
> > *
> > * This program is free software; you can redistribute it and/or
> modify it
> > * under the terms of the GNU General Public License as published by
> the
> > * Free Software Foundation; either version 2 of the License, or (at
> your
> > * option) any later version.
> > *
> > * Generic PCM3168 support.
> > */
> >
> > #include <linux/init.h>
> > #include <linux/kernel.h>
> > #include <linux/device.h>
> > #include <linux/gpio.h>
> > #include <linux/slab.h>
> > #include <linux/module.h>
> > #include <linux/clk.h>
> > #include <linux/platform_device.h>
> > #include <linux/module.h>
> > #include <sound/core.h>
> > #include <sound/initval.h>
> > #include <sound/pcm.h>
> > #include <sound/pcm_params.h>
> > //#include <sound/soc-dapm.h>
> > #include <sound/soc.h>
> >
> > #include <asm/mach-types.h>
> > #include <mach/hardware.h>
> > #include <mach/gpio.h>
> > #include <plat/mcbsp.h>
> >
> > #include "../omap/omap-mcbsp.h"
> > #include "../omap/omap-pcm.h"
> >
> > #include "pcm3168.h"
> >
> >
> >
> > #define PCM3168_VERSION "0.1"
> >
> > #define PCM3168_RATES SNDRV_PCM_RATE_8000_96000
> /*(SNDRV_PCM_RATE_32000 |
> > SNDRV_PCM_RATE_44100 | \
> > SNDRV_PCM_RATE_48000)*/
> >
> > static struct snd_soc_dai_driver pcm3168_dai = {
> >
> > .name = "pcm3168-hifi",
> > .playback = {
> > .stream_name = "PCM3168 Playback",
> > .channels_min = 2,
> > .channels_max = 8,
> > .rates = PCM3168_RATES,
> > .formats = SNDRV_PCM_FMTBIT_S16_LE, //SNDRV_PCM_FMTBIT_S32_LE
> > },
> > .capture = {
> > .stream_name = "PCM3168 Capture",
> > .channels_min = 2,
> > .channels_max = 6,
> > .rates = PCM3168_RATES,
> > .formats = SNDRV_PCM_FMTBIT_S16_LE, //SNDRV_PCM_FMTBIT_S32_LE
> > },
> > };
> >
> > static void pcm3168_gpio_free(struct pcm3168_setup_data *setup)
> > {
> > // gpio_free(setup->dem0_pin);
> > // gpio_free(setup->dem1_pin);
> > // gpio_free(setup->pdad_pin);
> > // gpio_free(setup->pdda_pin);
> > }
> >
> > static int pcm3168_soc_probe(struct snd_soc_codec *codec)
> > {
> > struct pcm3168_setup_data *setup = codec->dev->platform_data;
> > int ret = 0;
> >
> > printk(KERN_ALERT "in SOC Probe -> kli \n");
> >
> > printk(KERN_INFO "PCM3168 SoC Audio Codec %s\n", PCM3168_VERSION);
> >
> > return ret;
> >
> > gpio_err:
> > // pcm3168_gpio_free(setup);
> >
> > return ret;
> > }
> >
> > static int pcm3168_soc_remove(struct snd_soc_codec *codec)
> > {
> > struct pcm3168_setup_data *setup = codec->dev->platform_data;
> >
> > // pcm3168_gpio_free(setup);
> > return 0;
> > }
> >
> >
> > #define pcm3168_soc_suspend NULL
> > #define pcm3168_soc_resume NULL
> >
> >
> > static struct snd_soc_codec_driver soc_codec_dev_pcm3168 = {
> > .probe = pcm3168_soc_probe,
> > .remove = pcm3168_soc_remove,
> > .suspend = pcm3168_soc_suspend,
> > .resume = pcm3168_soc_resume,
> > };
> >
> > static int __devinit pcm3168_codec_probe(struct platform_device *pdev)
> > {
> > int ret;
> > printk(KERN_ALERT "probe pcm3168 -> kli \n");
> >
> > ret = snd_soc_register_codec(&pdev->dev,
> > &soc_codec_dev_pcm3168, &pcm3168_dai, 1);
> >
> > printk(KERN_ALERT "probe_after pcm3168 -> kli = %d \n", ret);
> >
> > return ret;
> > }
> >
> > static int __devexit pcm3168_codec_remove(struct platform_device *pdev)
> > {
> > printk(KERN_ALERT "remove pcm3168 -> kli \n");
> >
> > snd_soc_unregister_codec(&pdev->dev);
> > return 0;
> > }
> >
> > MODULE_ALIAS("platform:pcm3168-codec");
> >
> > static struct platform_driver pcm3168_codec_driver = {
> > .probe = pcm3168_codec_probe,
> > .remove = __devexit_p(pcm3168_codec_remove),
> > .driver = {
> > .name = "pcm3168-codec",
> > .owner = THIS_MODULE,
> > },
> > };
>
> According to the datasheet the PCM3168 have I2C or SPI control interface.
> You
> should have the driver as i2c/spi device so you can actually control it.
>
As it is my first attempt to implement an audio codec i thought to start as
simple as possible and do all the setup with the external pins and avoid to
use the I2C or SPI at first. Of course i want to add it later on but i
thought it would be wise to test the hardware first.
>
> >
> > static int __init pcm3168_modinit(void)
> > {
> > printk(KERN_ALERT "in init of 3168 -> kli \n");
> > return platform_driver_register(&pcm3168_codec_driver);
> > }
> > module_init(pcm3168_modinit);
> >
> > static void __exit pcm3168_exit(void)
> > {
> > printk(KERN_ALERT "in exit of 3168 -> kli \n");
> > platform_driver_unregister(&pcm3168_codec_driver);
> > }
> > module_exit(pcm3168_exit);
> >
> > MODULE_DESCRIPTION("Soc PCM3168 driver");
> > MODULE_AUTHOR("Klimann Wendelin <wklimann at hotmail.com>");
> > MODULE_LICENSE("GPL");
> >
> >
> > *
> >
> ***********************************************************************************************
> > *
> > /linux-mainline-3.2.18-r121b/git/sound/soc/codecs/pcm3168.h
> > *
> >
> ***********************************************************************************************
> > *
> >
> > /*
> > * PCM3168 ALSA SoC Layer
> > *
> > * Author: Hugo Villeneuve
> > * Copyright (C) 2008 Lyrtech inc
> > *
> > * adapted by Klimann Wendelin <wklimann at hotmail.com>
> > *
> > *
> > * This program is free software; you can redistribute it and/or modify
> > * it under the terms of the GNU General Public License version 2 as
> > * published by the Free Software Foundation.
> > */
> >
> > #ifndef __LINUX_SND_SOC_PCM3168_2_H
> > #define __LINUX_SND_SOC_PCM3168_2_H
> >
> > struct pcm3168_setup_data {
> > // unsigned dem0_pin;
> > // unsigned dem1_pin;
> > // unsigned pdad_pin;
> > // unsigned pdda_pin;
> > };
> >
> > #endif
> > _______________________________________________
> > Alsa-devel mailing list
> > Alsa-devel at alsa-project.org
> > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> >
>
>
> --
> Péter
>
Thanks
Wendelin
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