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-rw-r--r--sound/usb/usbaudio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 2aba508a4831..f5a8dca66457 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -175,6 +175,9 @@ extern bool snd_usb_skip_validation;
* QUIRK_FLAG_FORCE_IFACE_RESET
* Force an interface reset whenever stopping & restarting a stream
* (e.g. after xrun)
+ * QUIRK_FLAG_FIXED_RATE
+ * Do not set PCM rate (frequency) when only one rate is available
+ * for the given endpoint.
*/
#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0)
@@ -198,5 +201,6 @@ extern bool snd_usb_skip_validation;
#define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18)
#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19)
#define QUIRK_FLAG_FORCE_IFACE_RESET (1U << 20)
+#define QUIRK_FLAG_FIXED_RATE (1U << 21)
#endif /* __USBAUDIO_H */