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ALSA: usb-audio: Add private_data pointer to usb_mixer_elem_info 

Add a private_data pointer to usb_mixer_elem_info to allow other mixer
implementations to extend the structure as necessary.

Signed-off-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Chris J Arges 2014-11-12 12:07:00 -06:00 committed by Takashi Iwai
parent ef9566a3a1
commit f41d6049d1
1 changed files with 1 additions and 0 deletions
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sound/usb/mixer.h
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@ -53,6 +53,7 @@ struct usb_mixer_elem_info {
int cached;
int cache_val[MAX_CHANNELS];
u8 initialized;
void *private_data;
};
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,