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SubjectRe: [Linux1394] IEEE1394: Development issues
Emanuel,
I hope I did not create any misunderstanding with the recent emails I sent
about the code that I wrote. I just want to make it clear that my code is
mostly an experimental / learning experience / hack job for me. It never
crossed my mind to submit this code for kernel or anything else. I believe
there are many experienced/professional driver writers out there who can do a
lot better job that I can. The code I wrote is mostly a personal hobby than
anything else and I don't mind sharing it with others who want to learn 1394 &
ohci. However, I would not mind seeing something out there (more official)
that will allow me to hook up my 1394 camera. Also, given the fact that I am
working on my graduate degree, traveling for work more than I should, managing
a full-time family with kids and trying to hold a full-time job... anything I
do on the side is extremely slow... However, I'll be more than happy to
contribute whatever I can to expedite the 1394 driver development for Linux and
I invite all others/new developers to do so. I assume Andreas Bombe is now the
point of contact for 1394 Linux project???

Regards,
Jeff Akgul -


Emanuel Pirker wrote:

> Dear Kernel and 1394 folks,
>
> some kind of debate was on the lkml which has been already misunderstood
> by some people ("conflicting development"). Well, development is not
> conflicting, but quality wins. Andreas Bombe was too annoyed about the
> old, from SCSI derived code in the Linux-IEEE1394 subsystem that he began
> writing a new one, focusing on TILynx development.
>
> This means:
> * The old subsystem code is mainly derived from the SCSI code and mostly
> ugly. I know and knew that, but did not have the time and manpower to
> change it. Andreas did.
> * Nobody began writing a TILynx driver (besides me writing an unusable
> skeleton file). Andreas did.
>
> So, there is NO development conflict. I have been out of business for
> quite a time, but the old code will be replaced by Andreas' code. Quality
> wins. I will bring my Adaptec AIC-5800 to the new architecture. I do not
> say "port", because the ideas of the new subsystem code are mainly the
> same. Only the code is much better. Of course there are some issues still
> to be resolved, but these are only technical issues.
>
> Alas, I have failed to complete the whole thing alone while this project
> was "official" and part of my studies. It is much work and I was much too
> inexperienced. Well, now there are many developers out there. All of the
> issues Subsystem, TILynx, OHCI, AIC-5800, IP-over-1394 are covered by
> developers. There is work ongoing for usage of cameras, but I am not
> informed well about this. Volunteers for SBP-2 (and as a consequence,
> IEEE1394 hard drives) are still searched :-)
>
> I am approaching the end of my graduate program. Chances are good that I
> can continue work on Linux1394 (at least more than I could do the last
> months). There is still much to do and I like the project very much, I
> want to continue, though I can not guarantee on it yet. That's why I am
> especially glad, that Andreas joined, because he seems to have enough
> resources to maintain the subsystem well.
>
> Please have a look at the project's webpage
>
> http://eclipt.uni-klu.ac.at/ieee1394
>
> I have hyperlinked it to Andreas' code properly (Download Section), but
> you can reach Andreas' page directly: http://home.pages.de/~Andreas.Bombe/
>
> While the lowlevel API is rather stable since the early days (I do not
> consider renaming "register_host" to "register_lowlevel" a major API
> change... at least not in our current stage), there is no real high-level
> API. Nobody has still touched isochronous support (streams with guaranteed
> QoS), which is prerequisite for video development.
>
> But the project is alive, bad code is replaced by better code, and new
> developers join in...
>
> Best regards,
>
> Emanuel
>
> ---------------------------------------------------------------------------
> Emanuel Pirker
> epirker@edu.uni-klu.ac.at
>
> _______________________________________________
> Linux1394 maillist - Linux1394@eclipt.uni-klu.ac.at
> http://eclipt.uni-klu.ac.at/mailman/listinfo/linux1394


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