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| author | Daniel Mack <zonque@gmail.com> | 2011-05-25 09:09:01 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-05-25 09:36:20 +0200 |
| commit | 9e38658f703732cb69936553cef4bdb4e5294f3f (patch) | |
| tree | 8db752c56b8c5677c5ea215bf6b249f17844e4e6 /sound/usb/mixer.h | |
| parent | ALSA: usb-audio: rework add_control_to_empty() (diff) | |
| download | linux-9e38658f703732cb69936553cef4bdb4e5294f3f.tar.xz linux-9e38658f703732cb69936553cef4bdb4e5294f3f.zip | |
ALSA: usb-audio: export snd_usb_feature_unit_ctl
In order to allow quirks functions to hook up to the standard feature
unit op tables, this patch exports a pointer to the struct that is used
internally.
That way, all the code handling the control can be kept private, and
external code can reference the symbol to re-use it.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.h')
| -rw-r--r-- | sound/usb/mixer.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 459551ac53ae..ae1a14dcfe82 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -24,7 +24,16 @@ struct usb_mixer_interface { u8 xonar_u1_status; }; -#define MAX_CHANNELS 10 /* max logical channels */ +#define MAX_CHANNELS 16 /* max logical channels */ + +enum { + USB_MIXER_BOOLEAN, + USB_MIXER_INV_BOOLEAN, + USB_MIXER_S8, + USB_MIXER_U8, + USB_MIXER_S16, + USB_MIXER_U16, +}; struct usb_mixer_elem_info { struct usb_mixer_interface *mixer; |