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From: poma <pomidorabelisima@gmail.com>
Subject: Re: dvb_usb_af9015: command failed=1 _ kernel >= 4.1.x
To: Antti Palosaari <crope@iki.fi>,
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Cc: Michael Krufky <mkrufky@linuxtv.org>,
	Manu Abraham <abraham.manu@gmail.com>,
	Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
	Jose Alberto Reguero <jareguero@telefonica.net>
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Date: Fri, 3 Jul 2015 01:02:13 +0200
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On 26.05.2015 14:24, poma wrote:
> 
> If it is not taken into account the already known problem of unreliable operation of the first tuner of the two,
> the device works reliably within kernel 4.0.4 with mxl5007t.ko reverted to
> http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/drivers/media/tuners/mxl5007t.c?id=ccae7af
> that is in the same state as is in the longterm kernel - 3.18.14,
> which is in correspondence with the aforementioned results.
> 
> 

http://git.linuxtv.org/cgit.cgi/media_tree.git/log/drivers/media/tuners/mxl5007t.c


5. 2014-11-11   [media] [PATH,2/2] mxl5007 move loop_thru to attach
   02f9cf9      Jose Alberto Reguero
   
4. 2014-11-11   [media] [PATH,1/2] mxl5007 move reset to attach
   fe4860a      Jose Alberto Reguero

3. 2013-02-08   Revert "[media] [PATH,1/2] mxl5007 move reset to attach"
   db5c05b      Mauro Carvalho Chehab

2. 2013-02-08   [media] [PATH,1/2] mxl5007 move reset to attach
   0a32377      Jose Alberto Reguero

1. 2012-08-14   [media] common: move media/common/tuners to media/tuners
   ccae7af      Mauro Carvalho Chehab


This is the conclusion after extensive testing,
commitas 5. 4. and 2. produce:

mxl5007t_soft_reset: 521: failed!
mxl5007t_attach: error -121 on line 907

causing the device completely unusable - AF9015 DVB-T USB2.0 stick


Do you need a patch to revert to commita 3. or 1. - again for the third time,
or you have a better solution?