提交 014950b0 编写于 作者: D Daniel Mack 提交者: Takashi Iwai

ALSA: usb-audio: add new quirk type QUIRK_AUDIO_STANDARD_MIXER

This quirk type will let the driver assume that there is a standard
mixer on a given interface, or that a specific mixer quirks will handle
the device.
Signed-off-by: NDaniel Mack <zonque@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
上级 9e38658f
......@@ -263,6 +263,20 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip,
return 0;
}
/*
* Create a standard mixer for the specified interface.
*/
static int create_standard_mixer_quirk(struct snd_usb_audio *chip,
struct usb_interface *iface,
struct usb_driver *driver,
const struct snd_usb_audio_quirk *quirk)
{
if (quirk->ifnum < 0)
return 0;
return snd_usb_create_mixer(chip, quirk->ifnum, 0);
}
/*
* audio-interface quirks
*
......@@ -295,7 +309,8 @@ int snd_usb_create_quirk(struct snd_usb_audio *chip,
[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
[QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk
[QUIRK_AUDIO_ALIGN_TRANSFER] = create_align_transfer_quirk,
[QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk,
};
if (quirk->type < QUIRK_TYPE_COUNT) {
......
......@@ -84,6 +84,7 @@ enum quirk_type {
QUIRK_AUDIO_FIXED_ENDPOINT,
QUIRK_AUDIO_EDIROL_UAXX,
QUIRK_AUDIO_ALIGN_TRANSFER,
QUIRK_AUDIO_STANDARD_MIXER,
QUIRK_TYPE_COUNT
};
......
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