min_period_frames 371 sound/usb/usx2y/us122l.c unsigned min_period_frames; min_period_frames 394 sound/usb/usx2y/us122l.c min_period_frames = 48; min_period_frames 397 sound/usb/usx2y/us122l.c min_period_frames = 52; min_period_frames 400 sound/usb/usx2y/us122l.c min_period_frames = 104; min_period_frames 404 sound/usb/usx2y/us122l.c min_period_frames <<= 1; min_period_frames 405 sound/usb/usx2y/us122l.c if (cfg.period_frames < min_period_frames)