IRC log for #elinux on 20070524

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00:59.43demigod2khi
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14:09.29cendresany of you know how to start a process in background and get its pid?
14:12.09wmatprocess &
14:12.17wmatthe shell will respond with the PID
14:12.25cendresfrom a boot script
14:12.42wmatwhat do you mean get its pic?
14:12.45wmatpid?
14:13.16*** join/#elinux ekiller200 (n=ekiller2@mail.newport-ent.com)
14:13.17cendresim starting 'dd' from a boot script. if i stop or restart that particular boot script i want to stop or restart 'dd' too
14:14.36cendresif i can send its pid to /var/run, then thats fine
14:14.54cendres'pidof' isn't a good idea, because there may be other 'dd' running
14:15.06wmatyou could write a second "shutdown" script or similar
14:17.43cendresi want something like 'dd if=foo of=bar & echo $! > /var/run/dd-foobar.pid'
14:18.39cendresthe '[1] 4464' that the shell displays after backgrounding something, it might be a shell variable
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14:52.00ekiller200I am write a kernel driver that is using a GPIO as a low speed serial input on an ARM9.   I basically need to find the duration between two interrupts.  Any ideas on how to do timing?  Any suggestions would be great.  
14:55.26wmatekiller200: try this tool -> http://kerneltrap.org/node/6557
14:56.52wmatekiller200: this is informative as well --> http://www.idt.mdh.se/utbildning/exjobb/files/TR0094.pdf
14:56.52wmatfwiw, I found those by googling "measuring interrupt latency"
14:59.22ekiller200cool, Ill check them out
15:01.51cendresecho h & echo $!
15:02.04cendres$! is the last job forked
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15:21.11cendreswhat header should i use to get PAGE_SIZE ?
15:21.38cendresasm/page.h ?
15:38.24*** join/#elinux TimRiker (n=timr@216.49.181.128)
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21:29.57TimRikerhave you migrated your wiki pages today?
21:30.15*** topic/#elinux by TimRiker -> Embedded Linux || http://eLinux.org/ || old wiki here: http://moin.eLinux.org/wiki/ please move your updates over to the new wiki || cross compile, uClibc, busybox, handhelds, post-sale linux installs ;-), etc.
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21:52.46TimRikerprobably so.
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