tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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
19/*
20 Initialize the Line6 USB audio system.
21*/
22int line6_init_audio(struct usb_line6 *line6)
23{
24 struct snd_card *card;
25 int err;
26
27 err = snd_card_new(line6->ifcdev,
28 SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
29 THIS_MODULE, 0, &card);
30 if (err < 0)
31 return err;
32
33 line6->card = card;
34
35 strcpy(card->id, line6->properties->id);
36 strcpy(card->driver, DRIVER_NAME);
37 strcpy(card->shortname, line6->properties->name);
38 /* longname is 80 chars - see asound.h */
39 sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name,
40 dev_name(line6->ifcdev));
41 return 0;
42}
43
44/*
45 Register the Line6 USB audio system.
46*/
47int line6_register_audio(struct usb_line6 *line6)
48{
49 int err;
50
51 err = snd_card_register(line6->card);
52 if (err < 0)
53 return err;
54
55 return 0;
56}
57
58/*
59 Cleanup the Line6 USB audio system.
60*/
61void line6_cleanup_audio(struct usb_line6 *line6)
62{
63 struct snd_card *card = line6->card;
64
65 if (card == NULL)
66 return;
67
68 snd_card_disconnect(card);
69 snd_card_free(card);
70 line6->card = NULL;
71}