[alsa-devel] [PATCH 2/4 v4] 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 --- sound/usb/mixer.h | 1 + 1 file changed, 1 insertion(+)

diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 73b1f64..8df9a73 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -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,