I'm trying to use sleepd to put my machine to sleep during periods of
inactivity when it's on the battery. Is anyone else doing this, or are
they using some other package?
sleepd works by watching the IRQ bus for interrupts. Specifically,
looking through the code it looks through /proc/interrupts for anything
that looks like an interrupt for a mouse or keyboard.
Here's what my /proc/interrupts looks like. I'm using an iBook DV 466.
CPU0
19: 21205 OpenPIC Level ide0
20: 244 OpenPIC Level ide1
25: 783175 OpenPIC Level VIA-PMU
27: 8 OpenPIC Level usb-ohci
41: 23559 OpenPIC Level eth0
47: 230550 OpenPIC Level GPIO1/ADB
55: 0 OpenPIC Edge NMI - XMON
BAD: 166
(one second later, i don't touch the keyboard)
CPU0
19: 21208 OpenPIC Level ide0
20: 244 OpenPIC Level ide1
25: 783182 OpenPIC Level VIA-PMU
27: 8 OpenPIC Level usb-ohci
41: 23565 OpenPIC Level eth0
47: 230561 OpenPIC Level GPIO1/ADB
55: 0 OpenPIC Edge NMI - XMON
BAD: 166
Now of course, iBooks being the freaky brainchild of Apple, they don't
do anything quite so mundane as use, you know, interrupts for the
keyboard. Everything gets delivered through ADB, which appears to be
delivering heartbeat interrtupts, since it goes up by about 10 every
second.
I wonder if anyone knew of a better way to watch for system activity in
any meaningful way?
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