David Brownell wrote:
> That was obviously tested only at HZ=100 or with quick-ish
> EEPROMs!
Ah, okay. I was aware that msleep(1) waits not less than 10ms with
HZ=100. I simply wondered, how to reach the timeout value for bigger
HZ-values.
> That loop should (a) run at least a few times, maybe three;
> and (b) not exit before the timeout passes.
...or (c) return successfully as soon as possible. This is why you used
msleep(1) and not something like msleep(AT24_EE_TIMEOUT / 2). I got it :)
> timeout = ... ;
> retries = 0;
> while (retries++ < 3 || time_before(jiffies, timeout)) {
> ... try write, quit loop on success ...
> msleep(1);
> }
This looks good, will include it!
Wolfram
--
Dipl.-Ing. Wolfram Sang | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
_______________________________________________
i2c mailing list
[email protected]
http://lists.lm-sensors.org/mailman/listinfo/i2c
