From: Oleh Kravchenko <oleg@kaa.org.ua>
To: Antti Palosaari <crope@iki.fi>, linux-media@vger.kernel.org
Subject: Re: si2157: new revision?
Date: Sun, 10 Jul 2016 00:18:14 +0300 [thread overview]
Message-ID: <57816A16.1090800@kaa.org.ua> (raw)
In-Reply-To: <46faadd5-80dc-bb71-be24-8b05fb035423@iki.fi>
Hello!
I'm started playing i2c, but stuck with unknown error for me - 32 (EPIPE?):
[ 5651.958763] cx231xx #0 at cx231xx_i2c_xfer: write stop addr=0x60
len=15: c0 00 00 00 00 01 01 01 01 01 01 02 00 00 01
[ 5651.958774] cx231xx #0: (pipe 0x80001000): OUT: 40 02 21 c0 00 00
0f 00
[ 5651.958775] >>> c0 00 00 00 00 01 01 01 01 01 01 02 00 00 01FAILED!
[ 5651.959110] cx231xx 1-2:1.1: cx231xx_send_usb_command: failed with
status --32
[ 5651.959111] cx231xx #0 at cx231xx_i2c_xfer: ERROR: -32
How this error can be fixed? :)
On 04.07.16 21:47, Antti Palosaari wrote:
> Hello
> On 07/04/2016 09:38 PM, Oleh Kravchenko wrote:
>> Hello Antti!
>>
>> I started reverse-engineering of my new TV tuner "Evromedia USB Full
>> Hybrid Full HD" and discovered that start sequence is different from
>> si2157.c:
>> i2c_read_C1
>> 1 \xFE
>> i2c_write_C0
>> 15 \xC0\x00\x00\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01
>>
>> Do you familiar with this revision?
>> Should I merge my changes to si2158.c?
>> Or define another driver?
>
> According to chip markings those are tuner Si2158-A20 and demod
> Si2168-A30. Both are supported already by si2157 and si2168 drivers.
>
> Difference is just some settings. You need to identify which setting is
> wrong and add that to configuration options. It should be pretty easy to
> find it from the I2C dumps and just testing.
>
> regards
> Antti
>
next prev parent reply other threads:[~2016-07-09 21:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-29 23:38 [PATCH 1/3] si2168: add support for newer firmwares Antti Palosaari
2016-06-29 23:38 ` [PATCH 2/3] si2168: do not allow driver unbind Antti Palosaari
2016-06-29 23:38 ` [PATCH 3/3] si2157: " Antti Palosaari
[not found] ` <577AAD3C.2060204@kaa.org.ua>
2016-07-04 18:47 ` si2157: new revision? Antti Palosaari
2016-07-04 18:56 ` Oleh Kravchenko
2016-07-04 19:36 ` Antti Palosaari
2016-07-09 21:18 ` Oleh Kravchenko [this message]
2016-07-09 22:34 ` Antti Palosaari
2016-07-13 8:22 ` Oleh Kravchenko
2016-07-18 19:55 ` Oleh Kravchenko
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