From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:53401 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752695Ab3GANWJ (ORCPT ); Mon, 1 Jul 2013 09:22:09 -0400 Message-ID: <51D18256.8020407@iki.fi> Date: Mon, 01 Jul 2013 16:21:26 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Bogdan Oprea CC: "linux-media@vger.kernel.org" Subject: Re: drivers:media:tuners:fc2580c fix for Asus U3100Mini Plus error while loading driver (-19) References: <1372660460.41879.YahooMailNeo@web162304.mail.bf1.yahoo.com> <1372661590.52145.YahooMailNeo@web162304.mail.bf1.yahoo.com> In-Reply-To: <1372661590.52145.YahooMailNeo@web162304.mail.bf1.yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 07/01/2013 09:53 AM, Bogdan Oprea wrote: > this is a fix for this type of error > > [18384.579235] usb 6-5: dvb_usb_v2: 'Asus U3100Mini Plus' error while loading driver (-19) > [18384.580621] usb 6-5: dvb_usb_v2: 'Asus U3100Mini Plus' successfully deinitialized and disconnected > --- a/drivers/media/tuners/fc2580.c +++ b/drivers/media/tuners/fc2580.c @@ -506,6 +506,7 @@ switch (chip_id) { case 0x56: case 0x5a: + case 0xff: break; default: goto err; That does not look correct. If chip id reading is returning 0x00 or 0xff it is about 100% sure there is I2C communication failure. Could you make some test and tweak it a little bit more to see what is problem. Does I2C read work after that or is it failing all the time? regards Antti -- http://palosaari.fi/