/usr/include/sound/firewire.h is in linux-libc-dev 3.13.0-24.46.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #ifndef _SOUND_FIREWIRE_H_INCLUDED
#define _SOUND_FIREWIRE_H_INCLUDED
#include <linux/ioctl.h>
/* events can be read() from the hwdep device */
#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
struct snd_firewire_event_common {
unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
};
struct snd_firewire_event_lock_status {
unsigned int type;
unsigned int status; /* 0/1 = unlocked/locked */
};
struct snd_firewire_event_dice_notification {
unsigned int type;
unsigned int notification; /* DICE-specific bits */
};
union snd_firewire_event {
struct snd_firewire_event_common common;
struct snd_firewire_event_lock_status lock_status;
struct snd_firewire_event_dice_notification dice_notification;
};
#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
#define SNDRV_FIREWIRE_TYPE_DICE 1
/* Fireworks, AV/C, RME, MOTU, ... */
struct snd_firewire_get_info {
unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
unsigned int card; /* same as fw_cdev_get_info.card */
unsigned char guid[8];
char device_name[16]; /* device node in /dev */
};
/*
* SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
* Returns -EBUSY if the driver is already streaming.
*/
#endif /* _SOUND_FIREWIRE_H_INCLUDED */
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