 | | Re: Lego Camera and legOS
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Last I checked, the chip which the lego camera uses is unsupported under linux. I wrote up a short discussion of what I knew at the time here: (URL) is even less than I seem to remember knowing but hopefully the link there can be helpful. Luis (...) (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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In lugnet.robotics.rcx.legos, Kenneth Johansen writes: . (...) AFAIK it is not possible yet. ISTR that the legocam is closely related to the Logitech QuickCam express and the project to develop drivers for the latter (look at (URL) ) will eventually (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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(...) argg....forgot to start a new thread, hopefully you guys will read it anyways :) kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Lego Camera and legOS
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hi all, my supervisor, recently supplied me with a camera that is part of the "vision command" package. unfortunately (and naturally) it only comes with software for windoze. so i was wondering if theres anyone out there that has managed to use this (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | R: c++
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Thank you Pat! I should be able to make it go. I'll tell you the results in a couple of weeks, cause I have to finish another project on lnp first. I still don't understand much the unix community: if version 2.5 is to be patched anyway, why not (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | cvs changes
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Hi, I checked into the CVS repository some changes today. They include: A) a fix to util/dll-src/Makefile to reference ../../kernel/lnp.c, so a symbolic link or copy is not required. B) small changes to various makefiles to get c++ support working (...) (23 years ago, 21-May-01, to lugnet.robotics.rcx.legos)
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| | Re: c++
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Hi, Sorry that I've been AWOL! Attached is a set of patches you can apply to the 2.5 distribution to clean up most of the make process. You will still have to correctly specify the TOOLPREFIX in Makefile.common, or via the make command line. You can (...) (23 years ago, 21-May-01, to lugnet.robotics.rcx.legos)
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| | c++
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Is c++ supported in legOs2.5 ? We've been unable to compile even the demos! (I already posted about that) Please give us a voice! thanks Ciao, Vittorio (23 years ago, 20-May-01, to lugnet.robotics.rcx.legos)
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| | Trouble loading programs
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Hi all, I'm new to legos and am having some problems loading programs. I have searched the news pages for my particular error and there are some that are close but not exactly. I hope someone can help because I am currently "dead in the water". Here (...) (23 years ago, 19-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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(...) Exceptions to the 0th law: You are manipulating and comparing floating-point values you know are integers with a magnitude less than a million or two. You are manipulating and comparing values you know are integer multiples of some power of (...) (23 years ago, 17-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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Hi there! (...) 0th law of computer science: NEVER use == on floats; it simply doesn't work as expected. In most cases a value cannot be exactly represented as a float variable; so MOST comparisons for equality WILL fail. (this is NOT an issue of (...) (23 years ago, 17-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnpd
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Ah. Those links. I have asked Markus to move those a couple of times but he no longer responds to my emails. I'm afraid that until he does those links will remain in place (and remain quite dead.) Sorry... Luis (...) ---...--- "Nobody ever said that (...) (23 years ago, 16-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnpd
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(...) This is old news, but I didn't find any answer to it while there are still two such links on (URL) the Doc section, the link to the HOWTO points to (URL) in the File section, the link to the Windows 9x/NT compiler points to (URL) (23 years ago, 16-May-01, to lugnet.robotics.rcx.legos)
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| | Re: permissions
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(...) Thanks! But rather than do things for a single user I opted for: chmod 666 ttyS0 If I'm not mistaken, this will give every user access to Serial port 0 (comm 1). Since my system only uses comm 1 for the lego tower this seems like a safe thing (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | Re: permissions
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the following error as a user. [James@Sauron demo]$ ../util/dll helloworld.lx open: Permission denied opening tty: Permission denied To what directory or files does my user need permission? I tried using a find on tty to no avail. A little help? if (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | permissions
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Hello, The first thing I have ever installed on a *nix platform was legOS on my recently (last week) converted Redhat Linux PC. I didn't really know how this sort of thing is supposed to work, so I did the whole install as root. Of course after I (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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I agree with most of Luis statement. I've worked for three years in the embedded software development (for cars), and I think it's quite dangerous to have RCX functions with the same name that Unix ones, because they don't do the same thing. Using (...) (23 years ago, 14-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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I'm actually on my way to my baccalaureate ceremony right now, but I do want to say that I feel very strongly that API changes for the sake of API changes should not be checked in. The current API, while not always intuitive, is well documented and (...) (23 years ago, 12-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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(...) I don't imagine that these changes will increase memory usage much, since they are largely just re-working existing features. I will look into the memory usage before releasing, though. In fact, I think that after I redid the networking a bit (...) (23 years ago, 12-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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My only concern with these proposed changes is possible increased memory usage. Encapsulation, error reporting, thread synchronisation etc are nice; but with just 32k of RAM I would question whether these are appropriate for some applications. For (...) (23 years ago, 11-May-01, to lugnet.robotics.rcx.legos)
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