Defined in 1 files as a macro:

• include/uapi/linux/usb/audio.h, line 80 (as a macro)

Referenced in 3 files:

• drivers/usb/gadget/function/f_uac1.c, line 825
• drivers/usb/gadget/function/f_uac1_legacy.c, line 508
• sound/usb/mixer.c, line 1368