On Fri, 2 Dec 2005 [EMAIL PROTECTED] wrote:
> Hello,
>
> 1. What is minimal time from plug eg.USB pendrive to moment when you can
> mount it?
It depends a little on the device. Usually the minimal time is under a
second. But the default time is set to 5 seconds, because some devices
(Apple iPods, for instance) need the extra delay.
> How can I optimize it? Now on my kernel 2.6.11 and Pendrive
> Kingston TRaveler 512MB it takes about few (5-6) seconds.
You can set the extra delay to any number of seconds by adding a line to
/etc/modprobe.conf. For example, to eliminate it entirely (set it to 0),
add a line saying
options usb-storage delay_use=0
> Does mount time depends on device storage amount?
Not unless you have a pendrive with more than about 10 GB of storage. :-)
> 2. Linux requiring more memory if I plug more USB devices at the same time?
Yes. Not much memory just to plug in a device, maybe one or two
thousand bytes. That's just an estimate; I haven't actually tried to
measure it. Mounting a device takes more.
> How does it work?
How does what work?
> Any links,documents?
Not much, as far as I know. You can look at the FAQ at www.linux-usb.org.
Alan Stern
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