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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687/* SPDX-License-Identifier: GPL-2.0-or-later */#ifndef __SOUND_SEQ_DEVICE_H#define __SOUND_SEQ_DEVICE_H
/* * ALSA sequencer device management * Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de> */
/* * registered device information */
struct snd_seq_device { /* device info */ struct snd_card *card; /* sound card */ int device; /* device number */ const char *id; /* driver id */ char name[80]; /* device name */ int argsize; /* size of the argument */ void *driver_data; /* private data for driver */ void *private_data; /* private data for the caller */ void (*private_free)(struct snd_seq_device *device); struct device dev; unsigned char args[]; /* driver-specific argument */};
#define to_seq_dev(_dev) \ container_of(_dev, struct snd_seq_device, dev)
/* sequencer driver */
/* driver operators * probe: * Initialize the device with given parameters. * Typically, * 1. call snd_hwdep_new * 2. allocate private data and initialize it * 3. call snd_hwdep_register * 4. store the instance to dev->driver_data pointer. * * remove: * Release the private data. * Typically, call snd_device_free(dev->card, dev->driver_data) */struct snd_seq_driver { int (*probe)(struct snd_seq_device *dev); void (*remove)(struct snd_seq_device *dev); struct device_driver driver; char *id; int argsize;};
#define to_seq_drv(_drv) \ container_of(_drv, struct snd_seq_driver, driver)
/* * prototypes */#ifdef CONFIG_MODULESvoid snd_seq_device_load_drivers(void);#else#define snd_seq_device_load_drivers()#endifint snd_seq_device_new(struct snd_card *card, int device, const char *id, int argsize, struct snd_seq_device **result);
#define SNDRV_SEQ_DEVICE_ARGPTR(dev) ((void *)(dev)->args)
int __must_check __snd_seq_driver_register(struct snd_seq_driver *drv, struct module *mod);#define snd_seq_driver_register(drv) \ __snd_seq_driver_register(drv, THIS_MODULE)void snd_seq_driver_unregister(struct snd_seq_driver *drv);
#define module_snd_seq_driver(drv) \ module_driver(drv, snd_seq_driver_register, snd_seq_driver_unregister)
/* * id strings for generic devices */#define SNDRV_SEQ_DEV_ID_MIDISYNTH "seq-midi"#define SNDRV_SEQ_DEV_ID_OPL3 "opl3-synth"#define SNDRV_SEQ_DEV_ID_UMP "seq-ump-client"
#endif /* __SOUND_SEQ_DEVICE_H */