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Diffstat (limited to 'sound/usb/card.c')
-rw-r--r--sound/usb/card.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 2da8ad75fd96..1a033177b83f 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -82,6 +82,7 @@ static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
static int nrpacks = 8; /* max. number of packets per urb */
static int device_setup[SNDRV_CARDS]; /* device parameter for this card */
static bool ignore_ctl_error;
+static bool autoclock = true;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the USB audio adapter.");
@@ -100,6 +101,8 @@ MODULE_PARM_DESC(device_setup, "Specific device setup (if needed).");
module_param(ignore_ctl_error, bool, 0444);
MODULE_PARM_DESC(ignore_ctl_error,
"Ignore errors from USB controller for mixer interfaces.");
+module_param(autoclock, bool, 0444);
+MODULE_PARM_DESC(autoclock, "Enable auto-clock selection for UAC2 devices (default: yes).");
/*
* we keep the snd_usb_audio_t instances by ourselves for merging
@@ -354,6 +357,7 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
chip->card = card;
chip->setup = device_setup[idx];
chip->nrpacks = nrpacks;
+ chip->autoclock = autoclock;
chip->probing = 1;
chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
@@ -627,7 +631,9 @@ int snd_usb_autoresume(struct snd_usb_audio *chip)
int err = -ENODEV;
down_read(&chip->shutdown_rwsem);
- if (!chip->shutdown && !chip->probing)
+ if (chip->probing)
+ err = 0;
+ else if (!chip->shutdown)
err = usb_autopm_get_interface(chip->pm_intf);
up_read(&chip->shutdown_rwsem);
@@ -645,7 +651,6 @@ void snd_usb_autosuspend(struct snd_usb_audio *chip)
static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
{
struct snd_usb_audio *chip = usb_get_intfdata(intf);
- struct list_head *p;
struct snd_usb_stream *as;
struct usb_mixer_interface *mixer;
@@ -655,8 +660,7 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
if (!PMSG_IS_AUTO(message)) {
snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
if (!chip->num_suspended_intf++) {
- list_for_each(p, &chip->pcm_list) {
- as = list_entry(p, struct snd_usb_stream, list);
+ list_for_each_entry(as, &chip->pcm_list, list) {
snd_pcm_suspend_all(as->pcm);
as->substream[0].need_setup_ep =
as->substream[1].need_setup_ep = true;
@@ -716,8 +720,7 @@ static struct usb_device_id usb_audio_ids [] = {
.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL },
{ } /* Terminating entry */
};
-
-MODULE_DEVICE_TABLE (usb, usb_audio_ids);
+MODULE_DEVICE_TABLE(usb, usb_audio_ids);
/*
* entry point for linux usb interface