Scanner - device busy

[funtomas]

After installing new kernel my scanner don't work anymore

[tomas@roof ~]$ scanimage -L
device `niash:libusb:004:003' is a Hewlett-Packard ScanJet 3400C flatbed scanner
[tomas@roof ~]$ scanimage
scanimage: open of device niash:libusb:004:003 failed: Device busy

[tashirosgt]

I don't claim to be an expert on this, but I notice on the page:
http://penguin-breeder.org/sane/saned/
That libusb:004:003 notation is from what the author calls "older hotplug based setup" (" aaa and bbb come from the devicename libusb:aaa:bbb").

Perhaps someone that knows the hotplug system can tells if a kernel update can cause some incompatibility.