Hello,
> >
> This means you have to access I²C directly by using --i2c=... and
> unload/blacklist the ds2482 kernel module?
I have this line in my owfs.conf (owserver and owfs are running as services
thru init.d)
server: device = /dev/i2c-1
i2c module is properly loaded, here is the ouput of lsmod:
Module Size Used by
nfsd 276601 2
fuse 92185 3
i2c_dev 6709 2
snd_bcm2835 21149 0
snd_pcm 90778 1 snd_bcm2835
snd_seq 61097 0
snd_seq_device 7209 1 snd_seq
snd_timer 23007 2 snd_pcm,snd_seq
snd 66325 5
snd_bcm2835,snd_timer,snd_pcm,snd_seq,snd_seq_device
i2c_bcm2708 6200 0
cdc_acm 18406 2
uio_pdrv_genirq 3666 0
uio 9897 1 uio_pdrv_genirq
I have these 2 lines in my /boot/config.txt
dtparam=i2c1=on
dtparam=i2c_arm=on
> Why? Because for Linux-3.16rc1 and later, you need owfs-3.1p1 at least.
>
>
Ok I'll update to owfs-3.1p1. But first let's try to see what happen with
this script running. Also it's a pity because owfs 2.8p15 is the standard in
the Raspbian repo, so if it doesn't match the kernel it should be updated. I
believe it the same in Debian main line because Raspbian is basically just a
Debian re-compilation for ARM. So a few years ago I was happy to see that
standard Raspbian + standard owfs from Raspian repo are working "out of the
box". I even posted here about that.
Update:
----------
Up to now my script has caught (almost) nothing. But I'm patient it will
eventually see it. Actually the script has triggered 3 times yesterday but
unfortunately the log doesn't show anything. Why? Because the script is
reading /mnt/1wire/uncached and if there are less (or more) than 7 devices it
reads again /mnt/1wire/uncached and log the result. Unfortunately the log is
showing 7 devices. So what has happened is: first reading there is no 7
devices (most probably 1 has disappeared) but second reading there are 7
devices. And this second reading is logged. So log isn't meaningful.
So I have modified my script to have only one reading, put it in a temporary
file, check it and if no 7 devices log it. Also I check first /mnt/1wire and
trigger the log depending of this directory, then I log also
/mnt/1wire/uncached, the output of "owdir", and the output of "owdir
uncached". I do it this way because on my system I almost never used the
uncached directory. I know the difference but I'm ok this way, I let owserver
update the cache. And each time a device disappear I check in the uncached
directory: it's also disappeared. So this new script is running let's see
what will come from it. It may take days but I'm confident it will see
something.
Here is the useless log (1 out of 3 caught)
Mon May 23 23:04:38 CEST 2016
======== ls /mnt/1wire/uncached ==========
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/10.9702E6010800
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/10.B6FAE5010800
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/26.FFD8F1000000
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/28.4E3066020000
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/29.1C9E09000000
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/3A.546302000000
drwxrwxrwx 1 root root 8 May 23 23:04 /mnt/1wire/uncached/3A.B36002000000
=========== owdir /uncahed ===============
/uncached/10.B6FAE5010800
/uncached/10.9702E6010800
/uncached/3A.546302000000
/uncached/29.1C9E09000000
/uncached/28.4E3066020000
/uncached/3A.B36002000000
/uncached/26.FFD8F1000000
==========================================
And here is the new script:
#!/bin/sh
# 23 Mai 2016 -- Script to check if any device disappear from 1wire bus
while :
do
sleep 5 # check every 5 seconds
ls -ld /mnt/1wire/??.* > /tmp/FileTmp1
ls -ld /mnt/1wire/uncached/??.* > /tmp/FileTmp2
owdir | grep 00 > /tmp/FileTmp3
owdir /uncached | grep 00 > /tmp/FileTmp4
HOW_MANY=`cat /tmp/FileTmp1 | wc -l` # On my system this must return 7 when
no problem
# echo $HOW_MANY
if [ $HOW_MANY -eq 7 ]; then
: # do nothing
else # log the output of above commands (filter for devices directory
only)
echo "================START=====================" >> /tmp/LogCheck1wire
date >> /tmp/LogCheck1wire
echo "=========== ls /mnt/1wire/ ===============" >> /tmp/LogCheck1wire
cat /tmp/FileTmp1 >> /tmp/LogCheck1wire
echo "======== ls /mnt/1wire/uncached ==========" >> /tmp/LogCheck1wire
cat /tmp/FileTmp2 >> /tmp/LogCheck1wire
echo "=============== owdir ====================" >> /tmp/LogCheck1wire
cat /tmp/FileTmp3 >> /tmp/LogCheck1wire
echo "=========== owdir /uncahed ===============" >> /tmp/LogCheck1wire
cat /tmp/FileTmp4 >> /tmp/LogCheck1wire
echo "=================END======================" >> /tmp/LogCheck1wire
fi
done
Best regards
--
Guy
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