[ALSA] Add Native Instrument usb audio device support

Add snd-usb-caiaq driver to support caiaq usb-audio devices from
Native Instrument:
	* Native Instruments RigKontrol2
	* Native Instruments Kore Controller
	* Native Instruments Audio Kontrol 1
	* Native Instruments Audio 8 DJ

Signed-off-by: Daniel Mack <daniel@caiaq.org>
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 7 insertions, 0 deletions

diff --git a/sound/usb/caiaq/caiaq-audio.h b/sound/usb/caiaq/caiaq-audio.h
new file mode 100644
index 000000000000..8ab1f8d9529e
--- /dev/null
+++ b/sound/usb/caiaq/caiaq-audio.h
@@ -0,0 +1,7 @@
+#ifndef CAIAQ_AUDIO_H
+#define CAIAQ_AUDIO_H
+
+int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev);
+void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev);
+
+#endif /* CAIAQ_AUDIO_H */