sound: usb: make the USB MIDI module more independent
Remove the dependecy from the USB MIDI code on the snd_usb_audio
structure. This allows using the USB MIDI module from another driver
without having to pretend to be the generic USB audio driver.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index e9a3a9d..40ba811 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -132,7 +132,6 @@
int pcm_devs;
struct list_head midi_list; /* list of midi interfaces */
- int next_midi_device;
struct list_head mixer_list; /* list of mixer interfaces */
};
@@ -227,8 +226,10 @@
int ignore_error);
void snd_usb_mixer_disconnect(struct list_head *p);
-int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface,
- const struct snd_usb_audio_quirk *quirk);
+int snd_usbmidi_create(struct snd_card *card,
+ struct usb_interface *iface,
+ struct list_head *midi_list,
+ const struct snd_usb_audio_quirk *quirk);
void snd_usbmidi_input_stop(struct list_head* p);
void snd_usbmidi_input_start(struct list_head* p);
void snd_usbmidi_disconnect(struct list_head *p);