From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.gentoo.org ([140.211.166.183]:40626 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751383Ab3LTF6q (ORCPT ); Fri, 20 Dec 2013 00:58:46 -0500 Message-ID: <52B3DC91.5070709@gentoo.org> Date: Fri, 20 Dec 2013 06:58:41 +0100 From: Matthias Schwarzott MIME-Version: 1.0 To: Michael Krufky , linux-media@vger.kernel.org CC: =?ISO-8859-1?Q?Sven_M=FCller?= Subject: Questions on how to add support for DVB-C/T on HVR4400 and HVR5500 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi there, I am trying to also add support for for using SI2165 driver on HVR4400 and HVR5500 cards. The pci subdevice id of the HVR5500 (0x0070:0xc138) is assigned to HVR4400 in cx23885-cards.c. Is that just because the DVB-S2 part is identical, to not add redundant code? In this case I could just modify it to a new HVR5500 enum value. How is a second demod wired to cx23885 in this case? Is this done via another port, so portb for DVB-S/S2 and portc for DVB-C/T? On HVR5500, there is a device at i2c addr 0x60, this could either be a tuner (NXP 18271C2?) or the demod SI2165. Or is there a need to change gpio values to get the demod out of the reset? Does the HVR4400 contain a SI2161 demod? I cannot read the name on the pictures, but it looks very similar the SI2165. Regards Matthias