参照元

説明

参考

実装

struct snd_pcm_substream {
	struct snd_pcm *pcm;
	struct snd_pcm_str *pstr;
	void *private_data;		/* copied from pcm->private_data */
	int number;
	char name[32];			/* substream name */
	int stream;			/* stream (direction) */
	char latency_id[20];		/* latency identifier */
	size_t buffer_bytes_max;	/* limit ring buffer size */
	struct snd_dma_buffer dma_buffer;
	unsigned int dma_buf_id;
	size_t dma_max;
	/* -- hardware operations -- */
	struct snd_pcm_ops *ops;
	/* -- runtime information -- */
	struct snd_pcm_runtime *runtime;
        /* -- timer section -- */
	struct snd_timer *timer;		/* timer */
	unsigned timer_running: 1;	/* time is running */
	/* -- next substream -- */
	struct snd_pcm_substream *next;
	/* -- linked substreams -- */
	struct list_head link_list;	/* linked list member */
	struct snd_pcm_group self_group;	/* fake group for non linked substream (with substream lock inside) */
	struct snd_pcm_group *group;		/* pointer to current group */
	/* -- assigned files -- */
	void *file;
	int ref_count;
	atomic_t mmap_count;
	unsigned int f_flags;
	void (*pcm_release)(struct snd_pcm_substream *);
	struct pid *pid;
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
	/* -- OSS things -- */
	struct snd_pcm_oss_substream oss;
#endif
#ifdef CONFIG_SND_VERBOSE_PROCFS
	struct snd_info_entry *proc_root;
	struct snd_info_entry *proc_info_entry;
	struct snd_info_entry *proc_hw_params_entry;
	struct snd_info_entry *proc_sw_params_entry;
	struct snd_info_entry *proc_status_entry;
	struct snd_info_entry *proc_prealloc_entry;
	struct snd_info_entry *proc_prealloc_max_entry;
#endif
	/* misc flags */
	unsigned int hw_opened: 1;
};

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Last-modified: 2014-09-13 (土) 08:26:43