[PATCH v4 16/32] sound: usb: pcm: Export fixed rate check USB SND API

[Wesley Cheng]

Some modules will handle calling snd_usb_endpoint_open() instead of the USB
SND framework.  The USB SND endpoint open function added a new argument to
determine if the connect USB device can support multiple sampling rates.

Signed-off-by: Wesley Cheng <quic_wcheng at quicinc.com>
---
 sound/usb/pcm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b6fb6d84d9eb..955c6fea3bfa 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -186,6 +186,7 @@ bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *subs)
 	}
 	return true;
 }
+EXPORT_SYMBOL_GPL(snd_usb_pcm_has_fixed_rate);
 
 static int init_pitch_v1(struct snd_usb_audio *chip, int ep)
 {