em28xx_init_extension 3300 drivers/media/usb/em28xx/em28xx-cards.c 	em28xx_init_extension(dev);
em28xx_init_extension 3520 drivers/media/usb/em28xx/em28xx-cards.c 		em28xx_init_extension(dev);
em28xx_init_extension  837 drivers/media/usb/em28xx/em28xx.h void em28xx_init_extension(struct em28xx *dev);