root@patrick:/home/patrick/Desktop/spca5xx-20060501# make
   Building SPCA5XX driver for 2.5/2.6 kernel.
   Remember: you must have read/write access to your kernel source tree.
make -C /lib/modules/`uname -r`/build SUBDIRS=/home/patrick/Desktop/spca5xx-20060501 CC=cc modules
make: *** /lib/modules/2.6.15-25-386/build: No such file or directory.  Schluss.make: *** [default] Fehler 2
root@patrick:/home/patrick/Desktop/spca5xx-20060501#