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Problem with USB multi-function devices and upcoming kernel 2.6.13 #1260
I got following e-mail today:
-Ok. found why it fail.
Now, what can I do ? standard mandriva kernel doesn't boot on my box
This user has an Epson multi-function device with printer and scanner. In an earlier e-mail he complained that for printing the usblp kernel; module must be loaded, but then he cannot scan. For scanning he must unload the module. The problem seems that if a kernel module accesses a USB device there is no access for libusb. Both parts of the device would only work simultaneously if both are accessed via libusb.
So his suggestion is to have the usb CUPS backend modified to be libusb-based and not using the usblp kernel module (/dev/usb/lp0) any more.
CUPS.org User: mike
It is highly unlikely that we will do this unless someone develops a new version for us. Put simply, getting USB printing to work right is a major pain (it took Apple until 10.3 to get it right), and the potential gains are not worth it.