Hi, i saw a comment about signal field of struct v4l2_tuner from http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-g-tuner.html#v4l2-tuner __u32 signal The signal strength if known, ranging from 0 to 65535. Higher values indicate a better signal. Some v4l2 radio drivers use directly signal strength value(unit: dbµV) reading from hardware and some drivers transform the signal value to above range from 0 to 65535. I wonder which thing is proper way. Thank. -- - Joonyoung Shim -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html