V4L2_CID_PRIVATE_AUTOMUTE  160 drivers/media/pci/bt8xx/bttv-driver.c #define V4L2_CID_PRIVATE_AUTOMUTE		(V4L2_CID_USER_BTTV_BASE + 1)
V4L2_CID_PRIVATE_AUTOMUTE  426 drivers/media/pci/saa7134/saa7134.h #define V4L2_CID_PRIVATE_AUTOMUTE    (V4L2_CID_USER_SAA7134_BASE + 3)