stk_try_fmt_vid_cap 964 drivers/media/usb/stkwebcam/stk-webcam.c return stk_try_fmt_vid_cap(filp, fmtd, NULL); stk_try_fmt_vid_cap 1018 drivers/media/usb/stkwebcam/stk-webcam.c ret = stk_try_fmt_vid_cap(filp, fmtd, &idx);