From: JPT <j-p-t@gmx.net>
To: Patrick Boettcher <patrick.boettcher@posteo.de>
Cc: linux-media@vger.kernel.org
Subject: Re: technisat-usb2: i2c-error
Date: Fri, 10 Oct 2014 12:09:12 +0200 [thread overview]
Message-ID: <5437B048.4090100@gmx.net> (raw)
In-Reply-To: <20141009172614.5e16f240@vdr>
Hi Patrick,
Am 09.10.2014 um 17:26 schrieb Patrick Boettcher:
> Hi Jan,
>
>> What exactly do the i2c-errors mean?
>
> I can't tell you exactly what happens in the device, but I can tell you
> that I have the same problem with my device on my PC sometimes.
>
> In addition to this I2c-failures from time to time the box is quite
> sensitive regarding: repowering, replugging and host-rebooting. This is
> a USB-device-firmware problem which makes the device crash and all
> subsequent USB-transfers are failed. Reloading the module or replugging
> the device will make it work again.
That's bad news. Could you please add this info on the Wikipage?
http://www.linuxtv.org/wiki/index.php/Technisat_SkyStar_USB_HD
> How many days without interruption did you use the device?
Well, this was about 2 days and 1.5 ;) recordings
It's now another 3 days. and there were only a few i2c errors, but
nothing serious.
I did only two SD recordings in the meantime. No problems yet.
I changed the watchdog from 60 secs to 10 mins.
I added a delay of 10 secs between unload and reload of the modules in
the runvdr script.
I hope the machine will be able to recover automatically next time.
> I was following quietly you're discussion with Antti. Has someone taken
> care of the your changes regarding the transfer-size?
No. Since I don't understand anything about what I did ;)
And I don't know the process of officially working on the kernel...
(Just wondered if I will ever learn that much about kernel programming;)
> I think it should included.
Then someone with more insight should change the buffers and create a
patch. o.O
Jan
next prev parent reply other threads:[~2014-10-10 10:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-07 17:27 technisat-usb2: i2c-error JPT
2014-10-09 15:26 ` Patrick Boettcher
2014-10-10 10:09 ` JPT [this message]
2014-10-11 15:45 ` Patrick Boettcher
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