[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/sound/usb/clock.h b/ap/os/linux/linux-3.4.x/sound/usb/clock.h
new file mode 100644
index 0000000..4663093
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/sound/usb/clock.h
@@ -0,0 +1,10 @@
+#ifndef __USBAUDIO_CLOCK_H
+#define __USBAUDIO_CLOCK_H
+
+int snd_usb_init_sample_rate(struct snd_usb_audio *chip, int iface,
+ struct usb_host_interface *alts,
+ struct audioformat *fmt, int rate);
+
+int snd_usb_clock_find_source(struct snd_usb_audio *chip, int entity_id);
+
+#endif /* __USBAUDIO_CLOCK_H */