Commit da428828 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: control: queue TLV event for a set of user-defined element 



In a design of user-defined element set, applications allow to change TLV
data on the set. This operation doesn't only affects to a target element,
but also to elements in the set.

This commit generates TLV event for all of elements in the set when the TLV
data is changed.

Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent fb8027eb

sound/core/control.c

+6 −1
Original line number Original line Diff line number Diff line
@@ -1117,6 +1117,8 @@ static int replace_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf, 
{

{

	struct user_element *ue = kctl->private_data;

	struct user_element *ue = kctl->private_data;

	unsigned int *container;

	unsigned int *container;

	struct snd_ctl_elem_id id;

	int i;

	int change;

	int change;





	if (size > 1024 * 128)	/* sane value */

	if (size > 1024 * 128)	/* sane value */
@@ -1138,7 +1140,10 @@ static int replace_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf, 
	ue->tlv_data = container;

	ue->tlv_data = container;

	ue->tlv_data_size = size;

	ue->tlv_data_size = size;





	snd_ctl_notify(ue->card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id);

	for (i = 0; i < kctl->count; ++i) {

		snd_ctl_build_ioff(&id, kctl, i);

		snd_ctl_notify(ue->card, SNDRV_CTL_EVENT_MASK_TLV, &id);

	}





	return change;

	return change;

}

}