内核的文件参考下：smdk2443_wm9710.c，来自2.6.29

/* * smdk2443_wm9710.c -- SoC audio for smdk2443 * * Copyright 2007 Wolfson Microelectronics PLC. * Author: Graeme Gregory * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com * * 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. * */ #include <linux/module.h> #include <linux/device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include "../codecs/ac97.h" #include "s3c24xx-pcm.h" #include "s3c24xx-ac97.h" static struct snd_soc_card smdk2443; static struct snd_soc_dai_link smdk2443_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai = &s3c2443_ac97_dai[0], .codec_dai = &ac97_dai, }, }; static struct snd_soc_card smdk2443 = { .name = "SMDK2443", .platform = &s3c24xx_soc_platform, .dai_link = smdk2443_dai, .num_links = ARRAY_SIZE(smdk2443_dai), }; static struct snd_soc_device smdk2443_snd_ac97_devdata = { .card = &smdk2443, .codec_dev = &soc_codec_dev_ac97, }; static struct platform_device *smdk2443_snd_ac97_device; static int __init smdk2443_init(void) { int ret; smdk2443_snd_ac97_device = platform_device_alloc("soc-audio", -1); if (!smdk2443_snd_ac97_device) return -ENOMEM; platform_set_drvdata(smdk2443_snd_ac97_device, &smdk2443_snd_ac97_devdata); smdk2443_snd_ac97_devdata.dev = &smdk2443_snd_ac97_device->dev; ret = platform_device_add(smdk2443_snd_ac97_device); if (ret) platform_device_put(smdk2443_snd_ac97_device); return ret; } static void __exit smdk2443_exit(void) { platform_device_unregister(smdk2443_snd_ac97_device); } module_init(smdk2443_init); module_exit(smdk2443_exit); /* Module information */ MODULE_AUTHOR("Graeme Gregory, graeme.gregory@wolfsonmicro.com, www.wolfsonmicro.com"); MODULE_DESCRIPTION("ALSA SoC WM9710 SMDK2443"); MODULE_LICENSE("GPL");