Hi Hans, Thanks for the reply. In HDMI receivers, when we need to use this control. What scenario? -Thanks. On 30 March 2018 at 12:13, Hans Verkuil <hverkuil@xxxxxxxxx> wrote: > On 30/03/18 08:16, asadpt iqroot wrote: >> Hi All, >> >> In reference sensor drivers, they used the >> V4L2_CID_DV_RX_POWER_PRESENT v4l2 ctrl. >> It is a standard ctrl and created using v4l2_ctrl_new_std(). >> >> The doubts are: >> >> 1. Whether in our sensor driver, we need to create this Control Id or >> not. How to take the decision on this. Since this is the standard >> ctrl. When we need to use these standard ctrls?? > > No. This control is for HDMI receivers, not for sensors. > > Regards, > > Hans > >> >> 2. In Sensor driver, the ctrls creation is anything depends on the >> bridge driver. >> Based on bridge driver, whether we need to create any ctrls in Sensor driver. >> >> This question belongs to design of the sensor driver. >> >> >> >> Thanks & Regards >> >