linux-4.4.1/snd_pcm_ops の履歴(No.1)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• linux-4.4.1/snd_pcm_ops へ行く。
  • 1 (2016-02-16 (火) 10:54:34)

参照元†

• linux-4.4.1/snd_pcm_lib_default_mmap()
• linux-4.4.1/snd_pcm_lib_write_transfer()
• linux-4.4.1/snd_pcm_substream
• linux-4.4.1/snd_soc_pcm_runtime
• linux-4.4.1/snd_soc_platform_driver
• linux-4.4.1/soc_new_pcm()
• linux-4.4/ALSA

説明†

• パス: linux-4.4.1/include/sound/pcm.h

• FIXME: これは何？
  • 説明

参考†

実装†

struct snd_pcm_ops {
        int (*open)(struct snd_pcm_substream *substream);
        int (*close)(struct snd_pcm_substream *substream);

• • linux-4.4.1/snd_pcm_substream

        int (*ioctl)(struct snd_pcm_substream * substream,
                     unsigned int cmd, void *arg);
        int (*hw_params)(struct snd_pcm_substream *substream,
                         struct snd_pcm_hw_params *params);

• • linux-4.4.1/snd_pcm_hw_params

        int (*hw_free)(struct snd_pcm_substream *substream);
        int (*prepare)(struct snd_pcm_substream *substream);
        int (*trigger)(struct snd_pcm_substream *substream, int cmd);
        snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *substream);

• • linux-4.4.1/snd_pcm_uframes_t

        int (*get_time_info)(struct snd_pcm_substream *substream,
                        struct timespec *system_ts, struct timespec *audio_ts,
                        struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
                        struct snd_pcm_audio_tstamp_report *audio_tstamp_report);

• • linux-4.4.1/timespec
  • linux-4.4.1/snd_pcm_audio_tstamp_config
  • linux-4.4.1/snd_pcm_audio_tstamp_report

        int (*copy)(struct snd_pcm_substream *substream, int channel,
                    snd_pcm_uframes_t pos,
                    void __user *buf, snd_pcm_uframes_t count);
        int (*silence)(struct snd_pcm_substream *substream, int channel,
                       snd_pcm_uframes_t pos, snd_pcm_uframes_t count);
        struct page *(*page)(struct snd_pcm_substream *substream,
                             unsigned long offset);
        int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *vma);

• • linux-4.4.1/vm_area_struct

        int (*ack)(struct snd_pcm_substream *substream);
};

コメント†