[CentOS] modprobe :: not finding existing .ko

Hi! I try to load an module that it is found in curent /lib/modules/`uname -r` tree ... root@sevcenco: ~ # ls -l /lib/modules/`uname -r`/kernel/drivers/crypto/padlock-* -rwxr--r-- 1 root root 14296 Mar 16 19:37 /lib/modules/2.6.38-0.el5.elrepo/kernel/drivers/crypto/padlock-aes.ko -rwxr--r-- 1 root root 10808 Mar 16 19:37 /lib/modules/2.6.38-0.el5.elrepo/kernel/drivers/crypto/padlock-sha.ko

but if i try : root@sevcenco: ~ # modprobe -v padlock-aes.ko FATAL: Module padlock_aes.ko not found.

notice the change from - to _ Any idea about this? or more abstract: have anyone succeed to use padlock (via) hardware with openssl (or other software) in centos?

Thanks, Adrian