From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp5.tech.numericable.fr ([82.216.111.41]:56898 "EHLO smtp5.tech.numericable.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751043Ab0D1NS5 convert rfc822-to-8bit (ORCPT ); Wed, 28 Apr 2010 09:18:57 -0400 Date: Wed, 28 Apr 2010 15:19:01 +0200 From: Guy Martin To: =?UTF-8?B?QW5kcsOp?= Weidemann Cc: linux-media@vger.kernel.org Subject: Re: [PATCH] TT S2-1600 allow more current for diseqc Message-ID: <20100428151901.377169bb@zombie> In-Reply-To: <4BD82A16.5020301@web.de> References: <20100411231805.4bc7fdef@borg.bxl.tuxicoman.be> <4BD7E7A3.2060101@web.de> <20100428103303.2fe4c9ea@zombie> <4BD82A16.5020301@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-media-owner@vger.kernel.org List-ID: Hi Andre, On Wed, 28 Apr 2010 14:29:10 +0200 André Weidemann wrote: > > How come there is such a high current drain to drive the switch plus > the LNBs? From what I understand, the switch should only power one > LNB at a time. Usually the switch plus the LNB should not drain more > than 300-400mA, or am I wrong here? This is what I understood as well. It's cheap switch and LNBs so that may explain it :) I don't know how I can measure the current being drained tho. I only found out that increasing the limit made my setup work. It may be as well that the isl6423 driver doesnt' set the limit correctly and configures a lower current limit than what is expected. > > > Is there another way to solve this ? > > Maybe add a module parameter for people who want to override the > > default ? > > > I think this could be done. Nevertheless, the card would still > operate outside its specification. Ok I'll work on a patch in that direction. Probably an integer parameter with multiple possible values allowing to choose the limit or disable it and add a big fat warning along the way. Cheers, Guy