pwc_wb_speed      262 extra_lib/include/avcap/linux/pwc-ioctl.h #define VIDIOCPWCSAWBSPEED	_IOW('v', 203, struct pwc_wb_speed)
pwc_wb_speed      263 extra_lib/include/avcap/linux/pwc-ioctl.h #define VIDIOCPWCGAWBSPEED	_IOR('v', 203, struct pwc_wb_speed)