On Fri, Jan 26, 2007 at 12:54:02PM -0500, Justin Piszcz wrote:
> When I disconnect my UPS from the wall, I have to wait 15-30 seconds
> before the USB drier 'polls' this information and tells me that the UPS is
> on battery power (via knutclient or syslog via nut):
>
> ups@p34 POWER ALERT on Fri Jan 26 12:49:29 EST 2007
>
> With a serial connection, I would get the alerts IMMEDIATELY (0.5-1
> seconds) after disconnecting the UPS. My new machine does not have a
> serial port built-in, only a serial header, and of course does not come
> with an included cable, so I chose to use USB.
>
> My question is, how do I change the polling time for the USB subsystem to
> match that of the serial port, or would I not want to do that for other
> reasons?
>
> The reason I'd like to is I am not going to see any power alerts for
> unless there is a power outage for longer than 15-30 seconds.
I think this is a userspace issue, as it's a userspace program that is
doing the polling, right? Try asking the developers of it about this.
I think you will find it is a FAQ...
thanks,
greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
