Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Line6 Linux USB driver - 0.9.1beta
3 *
4 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
9 *
10 */
11
12#include <sound/core.h>
13#include <sound/initval.h>
14#include <linux/export.h>
15
16#include "driver.h"
17#include "audio.h"
18
19static int line6_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
20static char *line6_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
21
22/*
23 Initialize the Line6 USB audio system.
24*/
25int line6_init_audio(struct usb_line6 *line6)
26{
27 static int dev;
28 struct snd_card *card;
29 int err;
30
31 err = snd_card_create(line6_index[dev], line6_id[dev], THIS_MODULE, 0,
32 &card);
33 if (err < 0)
34 return err;
35
36 line6->card = card;
37
38 strcpy(card->id, line6->properties->id);
39 strcpy(card->driver, DRIVER_NAME);
40 strcpy(card->shortname, line6->properties->name);
41 /* longname is 80 chars - see asound.h */
42 sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name,
43 dev_name(line6->ifcdev));
44 return 0;
45}
46
47/*
48 Register the Line6 USB audio system.
49*/
50int line6_register_audio(struct usb_line6 *line6)
51{
52 int err;
53
54 err = snd_card_register(line6->card);
55 if (err < 0)
56 return err;
57
58 return 0;
59}
60
61/*
62 Cleanup the Line6 USB audio system.
63*/
64void line6_cleanup_audio(struct usb_line6 *line6)
65{
66 struct snd_card *card = line6->card;
67
68 if (card == NULL)
69 return;
70
71 snd_card_disconnect(card);
72 snd_card_free(card);
73 line6->card = NULL;
74}