S_PRESENT 56 drivers/media/usb/stkwebcam/stk-webcam.h #define is_present(dev) ((dev)->status & S_PRESENT) S_PRESENT 60 drivers/media/usb/stkwebcam/stk-webcam.h #define set_present(dev) ((dev)->status = S_PRESENT) S_PRESENT 62 drivers/media/usb/stkwebcam/stk-webcam.h ~(S_PRESENT|S_INITIALISED|S_STREAMING))