From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:52081 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755781Ab1FTV3m (ORCPT ); Mon, 20 Jun 2011 17:29:42 -0400 Message-ID: <4DFFBBC5.2080503@iki.fi> Date: Tue, 21 Jun 2011 00:29:41 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Rune Evjen CC: linux-media@vger.kernel.org Subject: Re: PCTV nanoStick T2 290e (Sony CXD2820R DVB-T/T2/C) - DVB-C channel scan in mythtv - missing References: <4DF49E2A.9030804@iki.fi> <4DFFB56B.3000802@iki.fi> <4DFFBABD.3040302@iki.fi> In-Reply-To: <4DFFBABD.3040302@iki.fi> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-ID: Sender: On 06/21/2011 12:25 AM, Antti Palosaari wrote: > On 06/21/2011 12:20 AM, Rune Evjen wrote: >> 2011/6/20 Antti Palosaari: >>> LNA is controlled by demod GPIO line. I don't remember if it is on or >>> off >>> for DVB-C currently. Look em28xx-dvb.c file, you can disable or >>> enable it >>> from there (needs re-compiling driver). >>> >>> I also saw BER counter running some muxes during development, but I >>> think >>> all channels I have are still working. And I didn't even have time to >>> optimal parameters for tuner / demod. I will try to examine those >>> later... >>> >> Thank you Antti, >> >> I will test with lna disabled in the em28xx-dvb module >> >> In line 349 of the code, I see this: >> /* enable LNA for DVB-T2 and DVB-C */ >> .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L, >> .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L, >> >> I suspect I should modify line 351, what should it be changed to ? > > Remove corresponding line (.gpio_dvbc[0]). Or change CXD2820R_GPIO_L => CXD2820R_GPIO_H. Have to check that too, I suspect removing it leaves it Hi-Z (which could result same). Antti -- http://palosaari.fi/