(from now on, i'll use "ELDD" to refer to the book "essential linux
device drivers.")
on p. 34 of ELDD, we see an example of using schedule_timeout():
unsigned long timeout = jiffies + HZ;
schedule_timeout(timeout);
that doesn't look right, does it? i thought schedule_timeout() took,
as an arg, the number of clock ticks to wait. what the above is doing
is calculating an actual *time* in the future, "jiffies + HZ"
representing the time (in jiffies) one second from now.
or am i misreading something?
rday
--
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Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Annoying Kernel Pedantry.
Web page: http://crashcourse.ca
Linked In: http://www.linkedin.com/in/rpjday
Twitter: http://twitter.com/rpjday
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