From 9e4d5c1be21f0c00e747e92186784f3298309b3e Mon Sep 17 00:00:00 2001 From: "Geoffrey D. Bennett" Date: Mon, 29 Jul 2019 00:42:45 +0930 Subject: ALSA: usb-audio: Scarlett Gen 2 mixer interface Add mixer quirk for the Focusrite Scarlett 6i6, 18i8, and 18i20 Gen 2 audio interfaces. Although the interfaces are USB compliant, additional input/output level controls and hardware routing/mixing functionality are available using proprietary USB requests. Signed-off-by: Geoffrey D. Bennett Signed-off-by: Takashi Iwai --- sound/usb/mixer.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sound/usb/mixer.h') diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 394cd9107507..37e1b234c802 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -28,6 +28,10 @@ struct usb_mixer_interface { struct media_mixer_ctl *media_mixer_ctl; bool disconnected; + + void *private_data; + void (*private_free)(struct usb_mixer_interface *mixer); + void (*private_suspend)(struct usb_mixer_interface *mixer); }; #define MAX_CHANNELS 16 /* max logical channels */ -- cgit v1.2.3