Re-install a USB device

[Michael Hipp]

On 4/27/2011 2:07 PM, Michael Hipp wrote:
> Does anyone know how to cause the OS to re-detect or re-install a USB
> device?
>
> I have a USB modem that works great. But if the system is rebooted, the
> modem does not seem to be properly detected. The device /dev/ttyACM0
> just isn't there as it should be. Anyone know how to get the system to
> look for the device and reinstall it? At present I have to physically
> remove and re-insert the USB plug to get it to work again after a reboot.

Just to close the loop ... I eventually solved this problem by 
installing a PCI card that provides modern USB 2.0 ports instead of the 
USB 1.1 ports that are on this old server. No issues with properly 
detecting connected devices now. FWIW here's the card I used, seems to 
work great with Linux:

http://www.newegg.com/Product/Product.aspx?Item=N82E16815108012

Michael