ALSA: add Apple iSight microphone driver

This adds an experimental driver for the front and rear microphones of
the Apple iSight web camera.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/iso-resources.c b/sound/firewire/iso-resources.c
index 775dbd5..9d4a671 100644
--- a/sound/firewire/iso-resources.c
+++ b/sound/firewire/iso-resources.c
@@ -36,6 +36,7 @@
 
 	return 0;
 }
+EXPORT_SYMBOL(fw_iso_resources_init);
 
 /**
  * fw_iso_resources_destroy - destroy a resource manager
@@ -48,6 +49,7 @@
 	mutex_destroy(&r->mutex);
 	fw_unit_put(r->unit);
 }
+EXPORT_SYMBOL(fw_iso_resources_destroy);
 
 static unsigned int packet_bandwidth(unsigned int max_payload_bytes, int speed)
 {
@@ -152,6 +154,7 @@
 
 	return channel;
 }
+EXPORT_SYMBOL(fw_iso_resources_allocate);
 
 /**
  * fw_iso_resources_update - update resource allocations after a bus reset
@@ -203,6 +206,7 @@
 
 	return channel;
 }
+EXPORT_SYMBOL(fw_iso_resources_update);
 
 /**
  * fw_iso_resources_free - frees allocated resources
@@ -230,3 +234,4 @@
 
 	mutex_unlock(&r->mutex);
 }
+EXPORT_SYMBOL(fw_iso_resources_free);