<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <body> <div dir="auto"><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">Hi, </div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">I hope this mailing-mist is the right place for this question. </div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">I would like to develop a new driver in order to manage backlight for a specific OLED display (Samsung one). For that propose I need to use the dpcd aux read and write functions. </div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">Since this driver is independent film the i915 driver I would like to develop an indémependant driver.</div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">So my question is: how can I use the i915 API (dpcd aux communications) outside from the driver and register the backlight sys entries like the i915 does (in order to have all the softwares which plays with the backlight working without modifying them) ?</div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;"><br style="overflow-wrap: break-word !important;"></div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;">Many thanks for your answers</div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;"><br style="overflow-wrap: break-word !important;"></div><div dir="auto" style="font-size: medium; overflow-wrap: break-word !important;"><div dir="auto" style="overflow-wrap: break-word !important;">--</div><div dir="auto" style="overflow-wrap: break-word !important;">Aurélien</div></div></div></body> </html>