<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style='font-size:10pt;font-family:Verdana,Arial,Helvetica,sans-serif;'><div>Hi,<br></div><div><br></div><div>Thanks for the reply. <br></div><div><br></div><div>In board, HDMI connectors are there. If we did not add this ctrl in driver, what will happen to the functionality?<br></div><div>If we did not add this ctrl, then whether this affect the video streaming functionality or not?<br></div><div><br></div><div>What scenario, we need to add this ctrl?<br></div><div><br></div><div>Thanks for the inputs.<br></div><div><br></div><div><div style="font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><span class="highlight" style="background-color:rgb(255, 255, 255)"><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Verdana, Arial, Helvetica, sans-serif"><span class="size" style="font-size:13.3333px">Thanks & Regards</span></span></span></span><br></div><div style="font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><span class="highlight" style="background-color:rgb(255, 255, 255)"><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Verdana, Arial, Helvetica, sans-serif"><span class="size" style="font-size:13.3333px"><b><span class="colour" style="color:rgb(192, 192, 192)">-<span> </span></span><i><span class="colour" style="color:rgb(51, 51, 51)">Asad</span></i></b></span></span></span></span><br></div><div style="font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><span class="highlight" style="background-color:rgb(255, 255, 255)"><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Verdana, Arial, Helvetica, sans-serif"><span class="size" style="font-size:13.3333px"><b><i><span class="colour" style="color:rgb(51, 51, 51)"> IQ Root Technologies</span></i></b></span></span></span></span><br></div></div><div><br></div><div class="zmail_extra"><div id="Zm-_Id_-Sgn1"><div><br></div><div>---- On Fri, 30 Mar 2018 12:42:08 +0530 <b><valdis.kletnieks@vt.edu></b> wrote ----<br></div></div><div><br></div><blockquote style="border-left: 1px solid #cccccc; padding-left: 6px; margin:0 0 0 5px"><div><div>On Fri, 30 Mar 2018 11:38:07 +0530, MUHAMMED ASAD P T said: <br></div><div> <br></div><div>> In reference sensor drivers, they used the V4L2_CID_DV_RX_POWER_PRESENT v4l2 ctrl. <br></div><div>> It is a standard ctrl and created using v4l2_ctrl_new_std(). <br></div><div> <br></div><div>> 1. Whether in our sensor driver, we need to create this Control Id or not. <br></div><div>> How to take the decision on this. Since this is the standard ctrl. When we need <br></div><div>> to use these standard ctrls?? <br></div><div> <br></div><div>When you're doing the same thing as the reference drivers, use the standard control. <br></div><div> <br></div><div>If you're doing something strange and different from the reference drivers, ask yourself <br></div><div>why you're doing it, and whether doing the same thing as the reference drivers wouldn't <br></div><div>be a better idea. <br></div><div> <br></div><div>In this specific case, RX_POWER_PRESENT sounds like a pretty common thing to <br></div><div>be able to sense. So if that's what you're doing, use that control. If your sensor <br></div><div>can't detect RX_POWER_PRESENT, complain to your hardware design team. :) <br></div></div></blockquote></div><div><br></div></div><br></body></html>