how to test if a pipe contains data

[Christof Warlich]

Am 23.01.2012 21:46, schrieb Gilles Espinasse:
> If the stick is usb-powered, you may find more convenient than reboot to
> just reset or maybe unpower usb.
> I made usb reset with 2.4 kernel on the time of usb adsl modem using
> modprobe -r / modprobe with hcd module.
>
> Gilles
>
Yes, that's worth a try - thanks for that. I'll give it a try. 
Unfortunately,
testing is quite time consuming - it may take several weeks until the
USB Stick may crash. Anyway, good point.