Re: [ owfs-Bugs-1516387 ] DS2490 problems
Paul Alfille <paul.alfille <at> gmail.com>
2006-07-03 15:28:56 GMT
Claes,
OWFS certainly works with the 2.6 kernel, and the DS9490R. (I just
tested it again).
So, some thoughts:
1. The binary versions in the sourceforge may not be totally
compatible. Can I suggest compiling from source? (The binaries are
built on Suse 9.3).
2. DSL probably wouldn't work with the 2.6 kernel and the owfs.uci. It
needed fuse kernel module, which was built for the then-current DSL
kernel (2.4.24 or something like that).
3. If you run with "--foreground --error_level=9" are there any hints?
4. The test against the WinXP is helpful.
5. CPU performance is certainly not an issue.
I've forewarded this note to the developers's list, and hope you'll
post your results as well.
Paul Alfille
On 7/3/06, Paul Alfille <paul.alfille <at> gmail.com> wrote:
> ---------- Forwarded message ----------
> From: SourceForge.net <noreply <at> sourceforge.net>
> Date: Jul 3, 2006 10:49 AM
> Subject: [ owfs-Bugs-1516387 ] DS2490 problems
> To: noreply <at> sourceforge.net
>
>
> Bugs item #1516387, was opened at 2006-07-03 23:49
> Message generated for change (Tracker Item Submitted) made by Item Submitter
> You can respond by visiting:
> https://sourceforge.net/tracker/?func=detail&atid=576393&aid=1516387&group_id=85502
>
> Please note that this message will contain a full copy of the comment thread,
> including the initial issue submission, for this request,
> not just the latest update.
> Category: owhttpd
> Group: None
> Status: Open
> Resolution: None
> Priority: 5
> Submitted By: Claes (greven777)
> Assigned to: Paul Alfille (alfille)
> Summary: DS2490 problems
>
> Initial Comment:
> Dear all
>
> I'm still having problems getting my DS2490 interface
> to work properly with my Linux box.
>
> The problem was described earlier in the port "Debug
> questions" and the problem is that devices on the bus
> disappears and also fails to read values randomly. When
> this happens I get a lot of BUS_read_error,
> BUS_select_low and BUS_CRC errors in the statistics
> section and the debug output shows the following when
> an error occurs:
>
> DATA: DS9490_reset
> DATA: DS9490_reset: ok
> DATA: DS9490_read: failed ret=0
> CONNECT: SELECTION ERROR
>
>
> When it looked like this might be an electrical problem
> on the 1-wire bus I tried a lot of things including RC
> filers and resistors to reduce echo's, --altUSB switch
> for USB timings etc. but there were no improvements. I
> also tried the DSL CD provided on several different PC
> HW, but with the same problem (DSL also have a 2.6
> kernel). When Vincent suggested this might be Linux
> kernel related I installed the OW development kit
> provided by Dallas on my WinXP PC (AMD X2 3800+) and
> was very surprised to see that it worked perfectly (no
> errors, missing devices and correct values read every
> poll which was 1 second). I just assume this would rule
> out any 1-wire bus electrical problems.
>
> I would however really like to use OWFS on my Linux
> box, but downgrading to kernel 2.4 is not an option as
> I have other things running which require 2.6.
>
> Some more info:
>
> My Linux version is Mandriva 2006 (clean install from
> CD) running default kernel 2.6.12-12, using FUSE 2.5.3
> (downloaded & compiled), default libusb 0.1.4 (came
> with dist), owfs 2.4p3 compiled and installed without
> errors (also tested 2.4p1 and p2).
>
> The Linux HW is an EPIA Via V10000 ITX board with a
> 1GHz EDEN CPU, 512Mb memory etc., however as I tested
> on other HW with same problem I don't think it is a HW
> issue and the CPU performance should be enough I think.
>
>
> Help! Does anyone have any ideas on what might be wrong
> here?
>
> Best Regards
> /Claes Martinsson
>
> ----------------------------------------------------------------------
>
> You can respond by visiting:
> https://sourceforge.net/tracker/?func=detail&atid=576393&aid=1516387&group_id=85502
>
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