On Sun, 7 Sep 2003, eric lin wrote: >[root@localhost nw802-2.4-0.0.99]# make >gcc -O3 -D__KERNEL__ -DMODULE -Wall -DMODVERSIONS -funroll-loops -frerun-cse-after-loop -funroll-all-loops -fomit-frame-pointer -nostdinc -I /usr/src/linux-2.4/include -I `dirname \`gcc -print-libgcc-file-name\``/include/ -include /usr/src/linux-2.4/include/linux/modversions.h -c -o usbvideo.o usbvideo.c >usbvideo.c: In function `usbvideo_AllocateDevice': >usbvideo.c:1083: warning: assignment from incompatible pointer type >usbvideo.c: In function `usbvideo_v4l_mmap': >usbvideo.c:1182: warning: passing arg 1 of `remap_page_range_Rc414bdc2' makes pointer from integer without a cast >usbvideo.c:1182: incompatible type for argument 4 of `remap_page_range_Rc414bdc2' >usbvideo.c:1182: too few arguments to function `remap_page_range_Rc414bdc2' Red Hat has patched their kernel to death, so it is incompatible with original Linux kernels. You could download original kernel from ftp.kernel.org (or mirrors), and install that, and compile the driver against the good kernel. If you can code, you could try fixing the problem. qc-usb driver faced the same problem, which I solved. You may download the code from http://qce-ga.sourceforge.net