Re: drivers:media:tuners:fc2580c fix for Asus U3100Mini Plus error while loading driver (-19)

[Oliver Schinagl <oliver+list@schinagl.nl>]

On 07/01/13 22:51, Antti Palosaari wrote:
> On 07/01/2013 11:39 PM, Oliver Schinagl wrote:
>> On 07/01/13 15:26, Oliver Schinagl wrote:
>>> On 01-07-13 15:23, Antti Palosaari wrote:
>>>> On 07/01/2013 10:52 AM, Oliver Schinagl wrote:
>>>>> On 01-07-13 08:53, Bogdan Oprea wrote:
>>>>>> this is a fix for this type of error
>>>>>>
>>>>>> [18384.579235] usb 6-5: dvb_usb_v2: 'Asus U3100Mini Plus' error while
>>>>>> loading driver (-19)
>>>>>> [18384.580621] usb 6-5: dvb_usb_v2: 'Asus U3100Mini Plus' successfully
>>>>>> deinitialized and disconnected
>>>>>>
>>>>> This isn't really a fix, I think i mentioned this on the ML ages ago,
>>>>
>>>> Argh, I just replied that same. Oliver, do you has that same device? Is
>>>> it working? Could you tweak to see if I2C readings are working at all?
>>> I have the same device, but mine works normally (though I haven't
>>> checked for ages), I will try it tonight when I'm at home and don't
>>> forget what happens with my current kernel.
>>
>> Hard to test when it 'just works (tm)' :)
>
>> The bad firmware wories me, no clue where that error is from, using:
>> 862604ab3fec0c94f4bf22b4cffd0d89  /lib/firmware/dvb-usb-af9035-02.fw
>
> It means firmware is too short or long what is calculated. I added that
> printing to notify users firmware is broken and could cause problems.
Ah, good call, it did get me to re-download it. no clue why it was 
broken all of a sudden.
>
>
> I suspect it is same issue what is with MxL5007t tuners too.
> Maybe that kind of fix is needed:
> https://patchwork.kernel.org/patch/2418471/
>
> Someone should really find out whether or not these are coming with
> register read operation with REPEATED START of STOP condition. Attach
> hardware sniffer to device tuner I2C bus and look what kind of messages
> there is actually.
Well mine works fine, so hard to say. IF you have a buspirate you should 
be able to intercept the i2c bus ON the device though :) Good luck 
Bogdan, I wish I could help here, but lack the broken hardware.

>
> regards
> Antti
>