linux-kernel - Re: si2157 not working at all?

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Date:   Mon, 23 Oct 2023 19:44:28 +0200
From:   JPT <j-p-t@....net>
To:     Bagas Sanjaya <bagasdotme@...il.com>,
        Linux Media Subsystem <linux-media@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Gon Solo <gonsolo@...il.com>
Subject: Re: si2157 not working at all?

Well,

I was able to make a fresh ubuntu install and build 6.6-rc7

find the logfile here:
https://pastebin.com/9zsRuYFv

comments inside, at the end.
the last lines are:

si2168 8-0067: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
si2168 8-0067: firmware version: B 4.0.25
si2157 9-0063: device is buggy, skipping firmware download
si2157 9-0063: firmware version: \xff.\xff.255

so even in the newest kernel, the chip is marked as buggy.

could someone please have a look what is the problem with si2157?

here seems to be a patch for kernel 4.19
https://github.com/brandsimon/debian-kernel-terratec-cinergy-tc2

thank you very much

Jan


Am 23.10.23 um 15:18 schrieb JPT:
> Hi,
>
> Am 22.10.23 um 12:08 schrieb Bagas Sanjaya:
>  > Can you check latest mainline (currently v6.6-rc6) instead?
>
> sorry. My backup laptop broke down while trying, so I wont be able to
> build and test a selfbuilt kernel any time soon.
>
> I was able to make the device partly work on
> LibreElec12@...pberry pi 3B+ kernel 6.1.58
> dmesg see http://ix.io/4JKJ
>
> But I wasn't able to tune into anything yet.
> The Hardware ID is a dublette and pulled a wrong driver on LibreElec.
> After blacklisting em28xx, the correct driver was loaded.
>
> I still get the message regarding firmware not loaded because buggy.
>
>> On Sun, Oct 22, 2023 at 09:57:07AM +0200, JPT wrote:
>>> Hi,
>>>
>>> I've got a
>>>     TerraTec Cinergy TC2 Stick / Terratec Cinergy H6 rev. 2
>>> DVB-T2/DVB-C USB stick using chips:
>>>     IT9306, Si2157, Si2168-B40
>
>> Do you already have latest linux-firmware package?
>
>  From what source? Ubuntu repo?
>
> I manually fetched from openelec github:
> d8da7ff67cd56cd8aa4e101aea45e052  dvb-demod-si2168-02.fw
> c8e089c351e9834060e962356f8697b8  dvb-demod-si2168-b40-01.fw
> d643a75d2ced161bc5fb635aec694d9f  dvb-demod-si2168-b40-01.fw.bak (bad?)
> 0c3f6bc5028bc37cfbf3a16d480bbaa5  dvb-usb-it9303-01.fw
> 9822ca23d24c46569ede9e07b1f13eee  dvb-usb-terratec-htc-stick-drxk.fw
>
> thanks
>
> Jan