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