linux-kernel - Re: stable regression: tda18271_read_regs: [1-0060|M] ERROR: i2c

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Message-ID: <52AFE107.4040705@gmail.com>
Date:	Mon, 16 Dec 2013 21:28:39 -0800
From:	Connor Behan <connor.behan@...il.com>
To:	Devin Heitmueller <dheitmueller@...nellabs.com>
CC:	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Frederik Himpe <fhimpe@...enet.be>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	stable@...r.kernel.org
Subject: Re: stable regression: tda18271_read_regs: [1-0060|M] ERROR: i2c_transfer
 returned: -19

Thanks for the detailed answer. I have tried your patch and updated the
wiki page. Would a 950 or 950Q be safer to buy next time?

On 14/12/13 05:17 PM, Devin Heitmueller wrote:
> I had a patch kicking around which fixed part of the issue, but it
> didn't completely work because of the lgdt3305 having AGC enabled at
> chip powerup (which interferes with analog tuning on the shared
> tuner), and the internal v4l-dvb APIs don't provide any easy way to
> reset the AGC from the analog side of the device. 

By this do you mean that the functions exist but they aren't part of the
public API? Maybe this problem can be addressed if there is ever "v4l3"
or some other reason to break compatibility.


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