Messages in this thread | | | From | Marin Mitov <> | Subject | Re: [RFC] Yet another dt3155 driver for drivers/staging | Date | Thu, 14 Jan 2010 21:23:57 +0200 |
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Hi Scot & Greg,
> > I'd be interested in Marin's opinion as he appears to have used both > drivers extensively.
I have successfully used SourceForge(SF) driver since 2003 on 2.4.xx kernels till the time of 2.6.17 kernel when I switched to 2.6.17 as described in
http://lfb.issp.bas.bg/~mitov/linux/dt3155pci/00README
At this time I needed 1 fps, so the SF driver was OK for me.
> > I'd like a userspace program to actually try out Marin's driver
I have one using KDE 3.5 libraries. If you use KDE 3.5 I could send it to you.
> , but > I can still make some general comments: > > Things I like about Marin's driver: > - It is only ~1/3rd the size. (by counting new lines) > - The code is much neater. > - It can acquire frames at 25 fps (real-time), according to Marin.
Since today it could do 30 fps as well :-). Updated.
> - At least 1 person with intimate knowledge of the code seems keen to > maintain it. > > Things I like about the sourceforge (SF) driver: > - It works in CCIR mode (768x576) or 640x480 mode.
Since today - here also.
> - It is well tested. > - It works with most kernel versions. ie. 2.2, 2.4, & 2.6. (mostly)
Production tested/used (every day use) on 2.6.27.43-i686. Compile tested on 2.6.33.-rc4-x86_64 :-)
> - It works with multiple boards.
Here in principal - also, but not tested.
> - The code is moderately well commented. > - It includes simple (user space) example programs. > > > Clearly each driver has strengths over the other. > > It would probably be easier to upgrade Marin's driver to match the > strengths of the SF driver than the other way around. The only > difficulty might be in making Marin's driver work with older kernel > versions. IMO, that's probably an acceptable sacrifice to make. (For > users of legacy systems, we could point them to the (unmaintained) > driver on SF.) > > Marin, if you are considering upgrading your driver, I propose > we send an email to the DT3155 SF mailing list & ask for help > testing.
OK. I agree. Which kind of upgrade you mean?
If CCIR/RS-170 - it is already done (but not tested on RS-170, I have no such camera).
I would ask your help for contacting "the DT3155 SF mailing list & ask for help"
> (I already know of 1 other person who is happy to help > test.) I recommend making userspace programs (like examples/acquire > & examples/Xview in the SF driver) available first. Ideally, these > example programs & user space libraries would become the major > component of the evolved DT3155 SF project.
Here I could propose a KDE program, but it needs KDE, I am not familiar with GNOME programing.
Marin Mitov
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