License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 23:07:57 +09:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 07:20:36 +09:00
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#ifndef __SOUND_SND_WAVEFRONT_H__
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#define __SOUND_SND_WAVEFRONT_H__
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2012-10-03 02:01:25 +09:00
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#include <sound/mpu401.h>
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#include <sound/hwdep.h>
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#include <sound/rawmidi.h>
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#include <sound/wavefront.h> /* generic OSS/ALSA/user-level wavefront header */
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2005-04-17 07:20:36 +09:00
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/* MIDI interface */
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struct _snd_wavefront_midi;
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struct _snd_wavefront_card;
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struct _snd_wavefront;
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typedef struct _snd_wavefront_midi snd_wavefront_midi_t;
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typedef struct _snd_wavefront_card snd_wavefront_card_t;
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typedef struct _snd_wavefront snd_wavefront_t;
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typedef enum { internal_mpu = 0, external_mpu = 1 } snd_wavefront_mpu_id;
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struct _snd_wavefront_midi {
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unsigned long base; /* I/O port address */
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char isvirtual; /* doing virtual MIDI stuff ? */
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char istimer; /* timer is used */
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snd_wavefront_mpu_id output_mpu; /* most-recently-used */
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snd_wavefront_mpu_id input_mpu; /* most-recently-used */
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unsigned int mode[2]; /* MPU401_MODE_XXX */
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2005-11-17 22:39:06 +09:00
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struct snd_rawmidi_substream *substream_output[2];
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struct snd_rawmidi_substream *substream_input[2];
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2005-04-17 07:20:36 +09:00
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struct timer_list timer;
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2017-10-25 00:35:09 +09:00
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snd_wavefront_card_t *timer_card;
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2005-04-17 07:20:36 +09:00
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spinlock_t open;
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spinlock_t virtual; /* protects isvirtual */
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};
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#define OUTPUT_READY 0x40
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#define INPUT_AVAIL 0x80
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#define MPU_ACK 0xFE
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#define UART_MODE_ON 0x3F
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2017-01-06 01:29:07 +09:00
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extern const struct snd_rawmidi_ops snd_wavefront_midi_output;
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extern const struct snd_rawmidi_ops snd_wavefront_midi_input;
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2005-04-17 07:20:36 +09:00
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extern void snd_wavefront_midi_enable_virtual (snd_wavefront_card_t *);
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extern void snd_wavefront_midi_disable_virtual (snd_wavefront_card_t *);
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extern void snd_wavefront_midi_interrupt (snd_wavefront_card_t *);
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extern int snd_wavefront_midi_start (snd_wavefront_card_t *);
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struct _snd_wavefront {
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unsigned long irq; /* "you were one, one of the few ..." */
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unsigned long base; /* low i/o port address */
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struct resource *res_base; /* i/o port resource allocation */
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#define mpu_data_port base
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#define mpu_command_port base + 1 /* write semantics */
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#define mpu_status_port base + 1 /* read semantics */
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#define data_port base + 2
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#define status_port base + 3 /* read semantics */
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#define control_port base + 3 /* write semantics */
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#define block_port base + 4 /* 16 bit, writeonly */
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#define last_block_port base + 6 /* 16 bit, writeonly */
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/* FX ports. These are mapped through the ICS2115 to the YS225.
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The ICS2115 takes care of flipping the relevant pins on the
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YS225 so that access to each of these ports does the right
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thing. Note: these are NOT documented by Turtle Beach.
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*/
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#define fx_status base + 8
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#define fx_op base + 8
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#define fx_lcr base + 9
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#define fx_dsp_addr base + 0xa
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#define fx_dsp_page base + 0xb
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#define fx_dsp_lsb base + 0xc
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#define fx_dsp_msb base + 0xd
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#define fx_mod_addr base + 0xe
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#define fx_mod_data base + 0xf
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volatile int irq_ok; /* set by interrupt handler */
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volatile int irq_cnt; /* ditto */
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char debug; /* debugging flags */
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int freemem; /* installed RAM, in bytes */
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char fw_version[2]; /* major = [0], minor = [1] */
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char hw_version[2]; /* major = [0], minor = [1] */
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char israw; /* needs Motorola microcode */
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char has_fx; /* has FX processor (Tropez+) */
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2006-11-06 17:20:04 +09:00
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char fx_initialized; /* FX's register pages initialized */
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2005-04-17 07:20:36 +09:00
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char prog_status[WF_MAX_PROGRAM]; /* WF_SLOT_* */
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char patch_status[WF_MAX_PATCH]; /* WF_SLOT_* */
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char sample_status[WF_MAX_SAMPLE]; /* WF_ST_* | WF_SLOT_* */
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int samples_used; /* how many */
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char interrupts_are_midi; /* h/w MPU interrupts enabled ? */
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char rom_samples_rdonly; /* can we write on ROM samples */
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spinlock_t irq_lock;
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wait_queue_head_t interrupt_sleeper;
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snd_wavefront_midi_t midi; /* ICS2115 MIDI interface */
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2006-11-06 17:20:04 +09:00
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struct snd_card *card;
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2005-04-17 07:20:36 +09:00
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};
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struct _snd_wavefront_card {
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snd_wavefront_t wavefront;
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#ifdef CONFIG_PNP
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struct pnp_dev *wss;
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struct pnp_dev *ctrl;
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struct pnp_dev *mpu;
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struct pnp_dev *synth;
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#endif /* CONFIG_PNP */
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};
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extern void snd_wavefront_internal_interrupt (snd_wavefront_card_t *card);
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extern int snd_wavefront_detect_irq (snd_wavefront_t *dev) ;
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extern int snd_wavefront_check_irq (snd_wavefront_t *dev, int irq);
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extern int snd_wavefront_restart (snd_wavefront_t *dev);
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extern int snd_wavefront_start (snd_wavefront_t *dev);
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extern int snd_wavefront_detect (snd_wavefront_card_t *card);
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extern int snd_wavefront_config_midi (snd_wavefront_t *dev) ;
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extern int snd_wavefront_cmd (snd_wavefront_t *, int, unsigned char *,
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unsigned char *);
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2005-11-17 22:39:06 +09:00
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extern int snd_wavefront_synth_ioctl (struct snd_hwdep *,
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2005-04-17 07:20:36 +09:00
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struct file *,
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unsigned int cmd,
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unsigned long arg);
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2005-11-17 22:39:06 +09:00
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extern int snd_wavefront_synth_open (struct snd_hwdep *, struct file *);
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extern int snd_wavefront_synth_release (struct snd_hwdep *, struct file *);
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2005-04-17 07:20:36 +09:00
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/* FX processor - see also yss225.[ch] */
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extern int snd_wavefront_fx_start (snd_wavefront_t *);
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extern int snd_wavefront_fx_detect (snd_wavefront_t *);
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2005-11-17 22:39:06 +09:00
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extern int snd_wavefront_fx_ioctl (struct snd_hwdep *,
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2005-04-17 07:20:36 +09:00
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struct file *,
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unsigned int cmd,
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unsigned long arg);
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2005-11-17 22:39:06 +09:00
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extern int snd_wavefront_fx_open (struct snd_hwdep *, struct file *);
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extern int snd_wavefront_fx_release (struct snd_hwdep *, struct file *);
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2005-04-17 07:20:36 +09:00
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/* prefix in all snd_printk() delivered messages */
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#define LOGNAME "WaveFront: "
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#endif /* __SOUND_SND_WAVEFRONT_H__ */
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