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Files and Folders in: //usr/include//sound/

NameTypeSizeLast ModifiedActions
intel Directory - -
sof Directory - -
asequencer.h File 21104 bytes July 04 2025 12:29:18.
asoc.h File 22486 bytes July 04 2025 12:29:18.
asound.h File 51220 bytes July 04 2025 12:29:18.
asound_fm.h File 3637 bytes July 04 2025 12:29:18.
compress_offload.h File 5926 bytes July 04 2025 12:29:18.
compress_params.h File 16461 bytes July 04 2025 12:29:18.
emu10k1.h File 18824 bytes July 04 2025 12:29:18.
firewire.h File 11019 bytes July 04 2025 12:29:18.
hdsp.h File 2076 bytes July 04 2025 12:29:18.
hdspm.h File 4486 bytes July 04 2025 12:29:18.
sb16_csp.h File 3563 bytes July 04 2025 12:29:18.
sfnt_info.h File 6754 bytes July 04 2025 12:29:18.
skl-tplg-interface.h File 5328 bytes July 04 2025 12:29:18.
snd_sst_tokens.h File 11754 bytes July 04 2025 12:29:18.
tlv.h File 4077 bytes July 04 2025 12:29:18.
usb_stream.h File 1239 bytes July 04 2025 12:29:18.

Reading File: //usr/include//sound//usb_stream.h

/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
 */

#ifndef __SOUND_USB_STREAM_H
#define __SOUND_USB_STREAM_H

#define USB_STREAM_INTERFACE_VERSION 2

#define SNDRV_USB_STREAM_IOCTL_SET_PARAMS \
	_IOW('H', 0x90, struct usb_stream_config)

struct usb_stream_packet {
	unsigned offset;
	unsigned length;
};


struct usb_stream_config {
	unsigned version;
	unsigned sample_rate;
	unsigned period_frames;
	unsigned frame_size;
};

struct usb_stream {
	struct usb_stream_config cfg;
	unsigned read_size;
	unsigned write_size;

	int period_size;

	unsigned state;

	int idle_insize;
	int idle_outsize;
	int sync_packet;
	unsigned insize_done;
	unsigned periods_done;
	unsigned periods_polled;

	struct usb_stream_packet outpacket[2];
	unsigned		 inpackets;
	unsigned		 inpacket_head;
	unsigned		 inpacket_split;
	unsigned		 inpacket_split_at;
	unsigned		 next_inpacket_split;
	unsigned		 next_inpacket_split_at;
	struct usb_stream_packet inpacket[0];
};

enum usb_stream_state {
	usb_stream_invalid,
	usb_stream_stopped,
	usb_stream_sync0,
	usb_stream_sync1,
	usb_stream_ready,
	usb_stream_running,
	usb_stream_xrun,
};

#endif /* __SOUND_USB_STREAM_H */

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