C++ (Cpp) snd_oss_info_register Examples

Example #1

File: seq_oss_synth.c Project: nos1609/Chrono_Kernel-1

/*
 * registration of the synth device
 */
int
snd_seq_oss_synth_register(struct snd_seq_device *dev)
{
	int i;
	struct seq_oss_synth *rec;
	struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
	unsigned long flags;

	if ((rec = kzalloc(sizeof(*rec), GFP_KERNEL)) == NULL) {
		snd_printk(KERN_ERR "can't malloc synth info\n");
		return -ENOMEM;
	}
	rec->seq_device = -1;
	rec->synth_type = reg->type;
	rec->synth_subtype = reg->subtype;
	rec->nr_voices = reg->nvoices;
	rec->oper = reg->oper;
	rec->private_data = reg->private_data;
	rec->opened = 0;
	snd_use_lock_init(&rec->use_lock);

	/* copy and truncate the name of synth device */
	strlcpy(rec->name, dev->name, sizeof(rec->name));

	/* registration */
	spin_lock_irqsave(&register_lock, flags);
	for (i = 0; i < max_synth_devs; i++) {
		if (synth_devs[i] == NULL)
			break;
	}
	if (i >= max_synth_devs) {
		if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) {
			spin_unlock_irqrestore(&register_lock, flags);
			snd_printk(KERN_ERR "no more synth slot\n");
			kfree(rec);
			return -ENOMEM;
		}
		max_synth_devs++;
	}
	rec->seq_device = i;
	synth_devs[i] = rec;
#ifdef CONFIG_DEBUG_PRINTK
	debug_printk(("synth %s registered %d\n", rec->name, i));
#else
	debug_;
#endif
	spin_unlock_irqrestore(&register_lock, flags);
	dev->driver_data = rec;
#ifdef SNDRV_OSS_INFO_DEV_SYNTH
	if (i < SNDRV_CARDS)
		snd_oss_info_register(SNDRV_OSS_INFO_DEV_SYNTH, i, rec->name);
#endif
	return 0;
}

Example #2

File: seq_oss_synth.c Project: yogesum/linux

/*
 * registration of the synth device
 */
int
snd_seq_oss_synth_probe(struct device *_dev)
{
    struct snd_seq_device *dev = to_seq_dev(_dev);
    int i;
    struct seq_oss_synth *rec;
    struct snd_seq_oss_reg *reg = SNDRV_SEQ_DEVICE_ARGPTR(dev);
    unsigned long flags;

    rec = kzalloc(sizeof(*rec), GFP_KERNEL);
    if (!rec)
        return -ENOMEM;
    rec->seq_device = -1;
    rec->synth_type = reg->type;
    rec->synth_subtype = reg->subtype;
    rec->nr_voices = reg->nvoices;
    rec->oper = reg->oper;
    rec->private_data = reg->private_data;
    rec->opened = 0;
    snd_use_lock_init(&rec->use_lock);

    /* copy and truncate the name of synth device */
    strlcpy(rec->name, dev->name, sizeof(rec->name));

    /* registration */
    spin_lock_irqsave(&register_lock, flags);
    for (i = 0; i < max_synth_devs; i++) {
        if (synth_devs[i] == NULL)
            break;
    }
    if (i >= max_synth_devs) {
        if (max_synth_devs >= SNDRV_SEQ_OSS_MAX_SYNTH_DEVS) {
            spin_unlock_irqrestore(&register_lock, flags);
            pr_err("ALSA: seq_oss: no more synth slot\n");
            kfree(rec);
            return -ENOMEM;
        }
        max_synth_devs++;
    }
    rec->seq_device = i;
    synth_devs[i] = rec;
    spin_unlock_irqrestore(&register_lock, flags);
    dev->driver_data = rec;
#ifdef SNDRV_OSS_INFO_DEV_SYNTH
    if (i < SNDRV_CARDS)
        snd_oss_info_register(SNDRV_OSS_INFO_DEV_SYNTH, i, rec->name);
#endif
    return 0;
}