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00:59.43 | demigod2k | hi |
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14:09.29 | cendres | any of you know how to start a process in background and get its pid? |
14:12.09 | wmat | process & |
14:12.17 | wmat | the shell will respond with the PID |
14:12.25 | cendres | from a boot script |
14:12.42 | wmat | what do you mean get its pic? |
14:12.45 | wmat | pid? |
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14:13.17 | cendres | im starting 'dd' from a boot script. if i stop or restart that particular boot script i want to stop or restart 'dd' too |
14:14.36 | cendres | if i can send its pid to /var/run, then thats fine |
14:14.54 | cendres | 'pidof' isn't a good idea, because there may be other 'dd' running |
14:15.06 | wmat | you could write a second "shutdown" script or similar |
14:17.43 | cendres | i want something like 'dd if=foo of=bar & echo $! > /var/run/dd-foobar.pid' |
14:18.39 | cendres | the '[1] 4464' that the shell displays after backgrounding something, it might be a shell variable |
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14:52.00 | ekiller200 | I 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. |
14:55.26 | wmat | ekiller200: try this tool -> http://kerneltrap.org/node/6557 |
14:56.52 | wmat | ekiller200: this is informative as well --> http://www.idt.mdh.se/utbildning/exjobb/files/TR0094.pdf |
14:56.52 | wmat | fwiw, I found those by googling "measuring interrupt latency" |
14:59.22 | ekiller200 | cool, Ill check them out |
15:01.51 | cendres | echo h & echo $! |
15:02.04 | cendres | $! is the last job forked |
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15:21.11 | cendres | what header should i use to get PAGE_SIZE ? |
15:21.38 | cendres | asm/page.h ? |
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21:29.57 | TimRiker | have 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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21:52.46 | TimRiker | probably so. |
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