uapi/sound/firewire.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
30 	unsigned int notification; /* DICE-specific bits */
33 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX	((__u32)((__u16)~0) - 1)
51 	__u32 message;	/* Digi00x-specific message */
56 	__u32 message;	/* MOTU-specific bits. */
77  * struct snd_firewire_event_ff400_message - the container for message from Fireface 400 when
78  *					     operating hardware knob.
82  * @messages.message: The messages expressing hardware knob operation.
89  * The structure expresses message transmitted by Fireface 400 when operating hardware knob.
139  * Returns -EBUSY if the driver is already streaming.
150  *  - 828mk2
151  *  - 896hd
152  *  - Traveler
153  *  - 8 pre
154  *  - Ultralite
155  *  - 4 pre
156  *  - Audio Express
159 …* isochronous packet. ALSA firewire-motu driver gathers the messages and allow userspace applicati…
160  * to read it via ioctl. In 828mk2, 896hd, and Traveler, hardware meter for all of physical inputs
176  * struct snd_firewire_motu_register_dsp_meter - the container for meter information in DSP
177  *						 controlled by register access
179  *	  model-dependent.
181  * The structure expresses the part of DSP status for hardware meter. The u8 storage includes linear
194  * snd_firewire_motu_register_dsp_parameter - the container for parameters of DSP controlled
219  * The structure expresses the set of parameters for DSP controlled by register access.
257  *  - 828 mk3 (FireWire only and Hybrid)
258  *  - 896 mk3 (FireWire only and Hybrid)
259  *  - Ultralite mk3 (FireWire only and Hybrid)
260  *  - Traveler mk3
261  *  - Track 16
263  * On the other hand, the states of hardware meter is split into specific messages included in the
264  * sequence of isochronous packet. ALSA firewire-motu driver gathers the message and allow userspace
271  * struct snd_firewire_motu_command_dsp_meter - the container for meter information in DSP
272  *						controlled by command
273  * @data: Signal level meters. The mapping between position and signal channel is model-dependent.
275  * The structure expresses the part of DSP status for hardware meter. The 32 bit storage is