Here is new complete pass at the polling. (Actually 2) Pure shell script. A perl program (or python, etc) could look for jitter in the line, remember previous times the devices was seen, etc.
#!/bin/sh
# Poll for a change in devices and run a program on the new device
# This version runs the program on all the existing devices the first time
rm -f oldlist
while :
# device list
ls -1 1wire/uncached > newfile
# find the changes
grep -N -B -w -I /^S/ oldlist newlist > difflist
# Deletions
grep "^<" difflist | tr -d "< " | xarg -r ex_device_command \{\}
# Additions
grep "^>" difflist | tr -d "> " | xarg -r new_device_command \{\}
# make current device list the old list
mv -f newlist oldlist
# pause before polling again
sleep 1
done
#!/bin/sh
# Poll for a change in devices and run a program on the new device
# This version ignores the existing devices
# existing device list
ls -1 1wire/uncached > oldfile
while :
# pause before polling again
sleep 1
# device list
ls -1 1wire/uncached > newfile
# find the changes
grep -B -w -I /^S/ oldlist newlist > difflist
# Deletions
grep "^<" difflist | tr -d "< " | xarg -r ex_device_command \{\}
# Additions
grep "^>" difflist | tr -d "> " | xarg -r new_device_command \{\}
# make current device list the old list
mv -f newlist oldlist
done
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Alfille, Paul
H.,M.D.
Sent: Wed 1/11/2006 7:39 AM
To: owfs-developers@lists.sourceforge.net
Subject: RE: [Owfs-developers] New Device Notification
The easiest is to have a script loop through polling the device list.
Something like:
#!/bin/sh
ls 1wire/uncached > oldlist
while :
sleep 1
ls 1wire/uncached > newlist
diff oldlist newlist | grep "^[<>]" > difflist
# difflist process, perhaps with a simple perlscript
mv oldlist newlist
done
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Stuart Poulton
Sent: Wed 1/11/2006 2:46 AM
To: owfs-developers@lists.sourceforge.net
Subject: [Owfs-developers] New Device Notification
Hi All,
Is there any way to have OWFS launch an external program on the
connection of a device to the OW Bus ?
Regards
Stuart
--
Stuart Poulton <[EMAIL PROTECTED]>
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