Macro (un)definition at include/linux/usb/ch9.h, line 244 References: drivers/media/video/em28xx/em28xx-cards.c, line 2685 drivers/media/video/em28xx/em28xx-cards.c, line 2807 drivers/usb/core/devices.c, line 136 drivers/usb/gadget/f_audio.c, line 52 drivers/usb/gadget/f_audio.c, line 140 drivers/usb/gadget/f_audio.c, line 149 drivers/usb/gadget/gmidi.c, line 234 drivers/usb/gadget/gmidi.c, line 258 include/linux/usb/ch9.h, line 244 sound/usb/usbaudio.c, line 2095 sound/usb/usbaudio.c, line 2688 sound/usb/usbaudio.c, line 2893 sound/usb/usbaudio.c, line 2903