bao 
Hi,
I enabled Printing support for USB driver when making "make
linux26-menuconfig". When I plugging the printer, usblp module is loaded,
because I saw the following line on the console:
# usb 1-1.2: new full speed USB device using s3c2410-ohci and address 3
usb 1-1.2: New USB device found, idVendor=03f0, idProduct=3d17
usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1.2: Product: HP LaserJet P1005
usb 1-1.2: Manufacturer: Hewlett-Packard
usb 1-1.2: SerialNumber: BC1L14D
usb 1-1.2: configuration #1 chosen from 1 choice
usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x03F0 pid
0x3D17
#
But when I use rmmod command to remove usblp in order to make cups 1.4.5
work, rmmod can not find the usblp module
# rmmod usblp
rmmod: can't unload 'usblp': unknown symbol in module, or unknown parameter
#
I searched on the file system, but could not find the usblp.ko file
anywhere.
Why can't I find the usblp.ko and how can I remove this module by rmmod?
I have to use usblp to load the firmware to the HP 1005 printer before
using cups.
Thank you very much