Re: [PATCH 00/23] em28xx: add support fur USB bulk transfers

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Am 28.10.2012 21:57, schrieb Mauro Carvalho Chehab:
> Em Sun, 21 Oct 2012 19:52:05 +0300
> Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx> escreveu:
>
>> This patch series adds support for USB bulk transfers to the em28xx driver.
>>
>> Patch 1 is a bugfix for the image data processing with non-interlaced devices (webcams)
>> that should be considered for stable (see commit message).
>>
>> Patches 2-21 extend the driver to support USB bulk transfers.
>> USB endpoint mapping had to be extended and is a bit tricky.
>> It might still not be sufficient to handle ALL isoc/bulk endpoints of ALL existing devices,
>> but it should work with the devices we have seen so far and (most important !) 
>> preserves backwards compatibility to the current driver behavior.
>> Isoc endpoints/transfers are preffered by default, patch 21 adds a module parameter to change this behavior.
>>
>> The last two patches are follow-up patches not really related to USB tranfers.
>> Patch 22 reduces the code size in em28xx-video by merging the two URB data processing functions 
>> and patch 23 enables VBI-support for em2840-devices.
>>
>> Please note that I could test the changes with an analog non-interlaced non-VBI device only !
>> So further tests with DVB/interlaced/VBI devices are strongly recommended !
> Did a quick test here with all applied, with analog TV with xawtv and tvtime. 
> Didn't work.

Ok, thanks for testing.

> I'll need to postpone it, until I have more time to double check it and bisect.

I would also need further informations about the test you've made (did
you enable bulk ?) and the device you used (supports VBI ?).

Regards,
Frank

>
> Regards,
> Mauro

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