[ALSA] Fix snd_xxx_t typedefs

Modules: PXA Mainstone driver,CX88 driver,SAA7134 driver

Replace snd_xxx_t typedefs with explicit structs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index d5bda60209ecaf4866aed1ba40e0fb8532f94fcc..98356f810007fad31d4fdc2cc39bea2e9b1b5c68 100644 (file)
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -157,14 +157,14 @@ static struct platform_device smc91x_device = {
        .resource       = smc91x_resources,
 };
 
-static int mst_audio_startup(snd_pcm_substream_t *substream, void *priv)
+static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
 {
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
        return 0;
 }
 
-static void mst_audio_shutdown(snd_pcm_substream_t *substream, void *priv)
+static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
 {
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;

diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
index 2acccd6d49bca63b3b9311ab8a6d014ded33d47c..c841914c0244fd85a1716955052981172e14facf 100644 (file)
--- a/drivers/media/video/cx88/cx88-alsa.c
+++ b/drivers/media/video/cx88/cx88-alsa.c
@@ -63,7 +63,7 @@ struct cx88_audio_dev {
        /* audio controls */
        int                        irq;
 
-       snd_card_t                 *card;
+       struct snd_card            *card;
 
        spinlock_t                 reg_lock;
 
@@ -82,7 +82,7 @@ struct cx88_audio_dev {
        struct cx88_buffer   *buf;
 
        long opened;
-       snd_pcm_substream_t *substream;
+       struct snd_pcm_substream *substream;
 
 };
 typedef struct cx88_audio_dev snd_cx88_card_t;
@@ -96,7 +96,7 @@ typedef struct cx88_audio_dev snd_cx88_card_t;
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;      /* ID for this card */
 static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1};
-static snd_card_t *snd_cx88_cards[SNDRV_CARDS];
+static struct snd_card *snd_cx88_cards[SNDRV_CARDS];
 
 module_param_array(enable, bool, NULL, 0444);
 MODULE_PARM_DESC(enable, "Enable cx88x soundcard. default enabled.");
@@ -320,7 +320,7 @@ static int dsp_buffer_free(snd_cx88_card_t *chip)
 /*
  * Digital hardware definition
  */
-static snd_pcm_hardware_t snd_cx88_digital_hw = {
+static struct snd_pcm_hardware snd_cx88_digital_hw = {
        .info = SNDRV_PCM_INFO_MMAP |
                SNDRV_PCM_INFO_INTERLEAVED |
                SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -342,16 +342,16 @@ static snd_pcm_hardware_t snd_cx88_digital_hw = {
 /*
  * audio pcm capture runtime free
  */
-static void snd_card_cx88_runtime_free(snd_pcm_runtime_t *runtime)
+static void snd_card_cx88_runtime_free(struct snd_pcm_runtime *runtime)
 {
 }
 /*
  * audio pcm capture open callback
  */
-static int snd_cx88_pcm_open(snd_pcm_substream_t *substream)
+static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
 {
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int err;
 
        if (test_and_set_bit(0, &chip->opened))
@@ -380,7 +380,7 @@ _error:
 /*
  * audio close callback
  */
-static int snd_cx88_close(snd_pcm_substream_t *substream)
+static int snd_cx88_close(struct snd_pcm_substream *substream)
 {
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
 
@@ -393,8 +393,8 @@ static int snd_cx88_close(snd_pcm_substream_t *substream)
 /*
  * hw_params callback
  */
-static int snd_cx88_hw_params(snd_pcm_substream_t * substream,
-                                snd_pcm_hw_params_t * hw_params)
+static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
+                             struct snd_pcm_hw_params * hw_params)
 {
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
        struct cx88_buffer *buf;
@@ -453,7 +453,7 @@ static int snd_cx88_hw_params(snd_pcm_substream_t * substream,
 /*
  * hw free callback
  */
-static int snd_cx88_hw_free(snd_pcm_substream_t * substream)
+static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
 {
 
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
@@ -469,7 +469,7 @@ static int snd_cx88_hw_free(snd_pcm_substream_t * substream)
 /*
  * prepare callback
  */
-static int snd_cx88_prepare(snd_pcm_substream_t *substream)
+static int snd_cx88_prepare(struct snd_pcm_substream *substream)
 {
        return 0;
 }
@@ -478,7 +478,7 @@ static int snd_cx88_prepare(snd_pcm_substream_t *substream)
 /*
  * trigger callback
  */
-static int snd_cx88_card_trigger(snd_pcm_substream_t *substream, int cmd)
+static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
 {
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
        int err;
@@ -505,10 +505,10 @@ static int snd_cx88_card_trigger(snd_pcm_substream_t *substream, int cmd)
 /*
  * pointer callback
  */
-static snd_pcm_uframes_t snd_cx88_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_cx88_pointer(struct snd_pcm_substream *substream)
 {
        snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
 
        if (chip->read_count) {
                chip->read_count -= snd_pcm_lib_period_bytes(substream);
@@ -525,7 +525,7 @@ static snd_pcm_uframes_t snd_cx88_pointer(snd_pcm_substream_t *substream)
 /*
  * operators
  */
-static snd_pcm_ops_t snd_cx88_pcm_ops = {
+static struct snd_pcm_ops snd_cx88_pcm_ops = {
        .open = snd_cx88_pcm_open,
        .close = snd_cx88_close,
        .ioctl = snd_pcm_lib_ioctl,
@@ -542,7 +542,7 @@ static snd_pcm_ops_t snd_cx88_pcm_ops = {
 static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
 {
        int err;
-       snd_pcm_t *pcm;
+       struct snd_pcm *pcm;
 
        err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
        if (err < 0)
@@ -557,7 +557,8 @@ static int __devinit snd_cx88_pcm(snd_cx88_card_t *chip, int device, char *name)
 /****************************************************************************
                                CONTROL INTERFACE
  ****************************************************************************/
-static int snd_cx88_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info)
+static int snd_cx88_capture_volume_info(struct snd_kcontrol *kcontrol,
+                                       struct snd_ctl_elem_info *info)
 {
        info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        info->count = 1;
@@ -568,7 +569,8 @@ static int snd_cx88_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_i
 }
 
 /* OK - TODO: test it */
-static int snd_cx88_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value)
+static int snd_cx88_capture_volume_get(struct snd_kcontrol *kcontrol,
+                                      struct snd_ctl_elem_value *value)
 {
        snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
        struct cx88_core *core=chip->core;
@@ -579,7 +581,8 @@ static int snd_cx88_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_va
 }
 
 /* OK - TODO: test it */
-static int snd_cx88_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value)
+static int snd_cx88_capture_volume_put(struct snd_kcontrol *kcontrol,
+                                      struct snd_ctl_elem_value *value)
 {
        snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
        struct cx88_core *core=chip->core;
@@ -595,7 +598,7 @@ static int snd_cx88_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_va
        return v != old_control;
 }
 
-static snd_kcontrol_new_t snd_cx88_capture_volume = {
+static struct snd_kcontrol_new snd_cx88_capture_volume = {
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Capture Volume",
        .info = snd_cx88_capture_volume_info,
@@ -641,7 +644,7 @@ static int snd_cx88_free(snd_cx88_card_t *chip)
 /*
  * Component Destructor
  */
-static void snd_cx88_dev_free(snd_card_t * card)
+static void snd_cx88_dev_free(struct snd_card * card)
 {
        snd_cx88_card_t *chip = card->private_data;
 
@@ -654,8 +657,9 @@ static void snd_cx88_dev_free(snd_card_t * card)
  */
 
 static int devno;
-static int __devinit snd_cx88_create(snd_card_t *card, struct pci_dev *pci,
-                                   snd_cx88_card_t **rchip)
+static int __devinit snd_cx88_create(struct snd_card *card,
+                                    struct pci_dev *pci,
+                                    snd_cx88_card_t **rchip)
 {
        snd_cx88_card_t   *chip;
        struct cx88_core  *core;
@@ -726,7 +730,7 @@ static int __devinit snd_cx88_create(snd_card_t *card, struct pci_dev *pci,
 static int __devinit cx88_audio_initdev(struct pci_dev *pci,
                                    const struct pci_device_id *pci_id)
 {
-       snd_card_t       *card;
+       struct snd_card  *card;
        snd_cx88_card_t  *chip;
        int              err;
 

diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c
index 7df5e0826e123fb2659995e5836c313a6aef432e..e02e6ee31b78262c83a473ab4688e04067b935f2 100644 (file)
--- a/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/drivers/media/video/saa7134/saa7134-alsa.c
@@ -71,7 +71,7 @@ MODULE_PARM_DESC(enable, "Enable (or not) the SAA7134 capture interface(s).");
  */
 
 typedef struct snd_card_saa7134 {
-       snd_card_t *card;
+       struct snd_card *card;
        spinlock_t mixer_lock;
        int mixer_volume[MIXER_ADDR_LAST+1][2];
        int capture_source[MIXER_ADDR_LAST+1][2];
@@ -95,10 +95,10 @@ typedef struct snd_card_saa7134_pcm {
 
        spinlock_t lock;
 
-       snd_pcm_substream_t *substream;
+       struct snd_pcm_substream *substream;
 } snd_card_saa7134_pcm_t;
 
-static snd_card_t *snd_saa7134_cards[SNDRV_CARDS];
+static struct snd_card *snd_saa7134_cards[SNDRV_CARDS];
 
 
 /*
@@ -251,10 +251,10 @@ out:
  *
  */
 
-static int snd_card_saa7134_capture_trigger(snd_pcm_substream_t * substream,
+static int snd_card_saa7134_capture_trigger(struct snd_pcm_substream * substream,
                                          int cmd)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_card_saa7134_pcm_t *pcm = runtime->private_data;
        struct saa7134_dev *dev=pcm->dev;
        int err = 0;
@@ -333,9 +333,9 @@ static int dsp_buffer_free(struct saa7134_dev *dev)
  *
  */
 
-static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream)
+static int snd_card_saa7134_capture_prepare(struct snd_pcm_substream * substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        int bswap, sign;
        u32 fmt, control;
        snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
@@ -422,9 +422,10 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream)
  *
  */
 
-static snd_pcm_uframes_t snd_card_saa7134_capture_pointer(snd_pcm_substream_t * substream)
+static snd_pcm_uframes_t
+snd_card_saa7134_capture_pointer(struct snd_pcm_substream * substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_card_saa7134_pcm_t *pcm = runtime->private_data;
        struct saa7134_dev *dev=pcm->dev;
 
@@ -442,7 +443,7 @@ static snd_pcm_uframes_t snd_card_saa7134_capture_pointer(snd_pcm_substream_t *
  * ALSA hardware capabilities definition
  */
 
-static snd_pcm_hardware_t snd_card_saa7134_capture =
+static struct snd_pcm_hardware snd_card_saa7134_capture =
 {
        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -465,7 +466,7 @@ static snd_pcm_hardware_t snd_card_saa7134_capture =
        .periods_max =          1024,
 };
 
-static void snd_card_saa7134_runtime_free(snd_pcm_runtime_t *runtime)
+static void snd_card_saa7134_runtime_free(struct snd_pcm_runtime *runtime)
 {
        snd_card_saa7134_pcm_t *pcm = runtime->private_data;
 
@@ -482,8 +483,8 @@ static void snd_card_saa7134_runtime_free(snd_pcm_runtime_t *runtime)
  *
  */
 
-static int snd_card_saa7134_hw_params(snd_pcm_substream_t * substream,
-                                   snd_pcm_hw_params_t * hw_params)
+static int snd_card_saa7134_hw_params(struct snd_pcm_substream * substream,
+                                     struct snd_pcm_hw_params * hw_params)
 {
        snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
        struct saa7134_dev *dev;
@@ -562,7 +563,7 @@ static int snd_card_saa7134_hw_params(snd_pcm_substream_t * substream,
  *
  */
 
-static int snd_card_saa7134_hw_free(snd_pcm_substream_t * substream)
+static int snd_card_saa7134_hw_free(struct snd_pcm_substream * substream)
 {
        snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
        struct saa7134_dev *dev;
@@ -588,7 +589,7 @@ static int snd_card_saa7134_hw_free(snd_pcm_substream_t * substream)
  *
  */
 
-static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream)
+static int snd_card_saa7134_capture_close(struct snd_pcm_substream * substream)
 {
        return 0;
 }
@@ -603,9 +604,9 @@ static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream)
  *
  */
 
-static int snd_card_saa7134_capture_open(snd_pcm_substream_t * substream)
+static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream)
 {
-       snd_pcm_runtime_t *runtime = substream->runtime;
+       struct snd_pcm_runtime *runtime = substream->runtime;
        snd_card_saa7134_pcm_t *pcm;
        snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
        struct saa7134_dev *dev = saa7134->dev;
@@ -641,7 +642,7 @@ static int snd_card_saa7134_capture_open(snd_pcm_substream_t * substream)
  * ALSA capture callbacks definition
  */
 
-static snd_pcm_ops_t snd_card_saa7134_capture_ops = {
+static struct snd_pcm_ops snd_card_saa7134_capture_ops = {
        .open =                 snd_card_saa7134_capture_open,
        .close =                snd_card_saa7134_capture_close,
        .ioctl =                snd_pcm_lib_ioctl,
@@ -662,7 +663,7 @@ static snd_pcm_ops_t snd_card_saa7134_capture_ops = {
 
 static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device)
 {
-       snd_pcm_t *pcm;
+       struct snd_pcm *pcm;
        int err;
 
        if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0)
@@ -680,7 +681,8 @@ static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device)
   .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \
   .private_value = addr }
 
-static int snd_saa7134_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
+static int snd_saa7134_volume_info(struct snd_kcontrol * kcontrol,
+                                  struct snd_ctl_elem_info * uinfo)
 {
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 2;
@@ -689,7 +691,8 @@ static int snd_saa7134_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_
        return 0;
 }
 
-static int snd_saa7134_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_saa7134_volume_get(struct snd_kcontrol * kcontrol,
+                                 struct snd_ctl_elem_value * ucontrol)
 {
        snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
        int addr = kcontrol->private_value;
@@ -699,7 +702,8 @@ static int snd_saa7134_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_
        return 0;
 }
 
-static int snd_saa7134_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_saa7134_volume_put(struct snd_kcontrol * kcontrol,
+                                 struct snd_ctl_elem_value * ucontrol)
 {
        snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
        int change, addr = kcontrol->private_value;
@@ -730,7 +734,8 @@ static int snd_saa7134_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_
   .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \
   .private_value = addr }
 
-static int snd_saa7134_capsrc_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
+static int snd_saa7134_capsrc_info(struct snd_kcontrol * kcontrol,
+                                  struct snd_ctl_elem_info * uinfo)
 {
        uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
        uinfo->count = 2;
@@ -739,7 +744,8 @@ static int snd_saa7134_capsrc_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_
        return 0;
 }
 
-static int snd_saa7134_capsrc_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_saa7134_capsrc_get(struct snd_kcontrol * kcontrol,
+                                 struct snd_ctl_elem_value * ucontrol)
 {
        snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
        int addr = kcontrol->private_value;
@@ -752,7 +758,8 @@ static int snd_saa7134_capsrc_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_
        return 0;
 }
 
-static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+static int snd_saa7134_capsrc_put(struct snd_kcontrol * kcontrol,
+                                 struct snd_ctl_elem_value * ucontrol)
 {
        snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
        int change, addr = kcontrol->private_value;
@@ -829,7 +836,7 @@ static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_
        return change;
 }
 
-static snd_kcontrol_new_t snd_saa7134_controls[] = {
+static struct snd_kcontrol_new snd_saa7134_controls[] = {
 SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER),
 SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER),
 SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1),
@@ -848,7 +855,7 @@ SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2),
 
 static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip)
 {
-       snd_card_t *card = chip->card;
+       struct snd_card *card = chip->card;
        unsigned int idx;
        int err;
 
@@ -862,7 +869,7 @@ static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip)
        return 0;
 }
 
-static void snd_saa7134_free(snd_card_t * card)
+static void snd_saa7134_free(struct snd_card * card)
 {
        snd_card_saa7134_t *chip = card->private_data;
 
@@ -889,7 +896,7 @@ static void snd_saa7134_free(snd_card_t * card)
 static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum)
 {
 
-       snd_card_t *card;
+       struct snd_card *card;
        snd_card_saa7134_t *chip;
        int err;
 

diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 3261d8bebdd1ce828611708b2ba566fa6d41f6ad..6873d9a85ef125a9c9c0d7a9638454907ddca092 100644 (file)
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -386,7 +386,7 @@ struct saa7134_dmasound {
        unsigned int               read_offset;
        unsigned int               read_count;
        void *                     priv_data;
-       snd_pcm_substream_t        *substream;
+       struct snd_pcm_substream   *substream;
 };
 
 /* IR input */

diff --git a/include/asm-arm/arch-pxa/audio.h b/include/asm-arm/arch-pxa/audio.h
index 60976f830e3f659dfa88c2ca8c9ae2db0b1fff19..17eccd72013650e2bf93ee0e904add87114bd052 100644 (file)
--- a/include/asm-arm/arch-pxa/audio.h
+++ b/include/asm-arm/arch-pxa/audio.h
@@ -6,8 +6,8 @@
 #include <sound/pcm.h>
 
 typedef struct {
-       int (*startup)(snd_pcm_substream_t *, void *);
-       void (*shutdown)(snd_pcm_substream_t *, void *);
+       int (*startup)(struct snd_pcm_substream *, void *);
+       void (*shutdown)(struct snd_pcm_substream *, void *);
        void (*suspend)(void *);
        void (*resume)(void *);
        void *priv;