[root@slk-apbx-01 ~]# lsmod
Module                  Size  Used by
ztdummy                 5472  0
nfsd                  278113  17
exportfs                8001  1 nfsd
lockd                  78449  2 nfsd
nfs_acl                 5313  1 nfsd
zttranscode            11664  0
md5                     5953  1
ipv6                  284193  20
parport_pc             29569  0
lp                     15345  0
parport                44493  2 parport_pc,lp
autofs4                24393  0
i2c_dev                13889  0
i2c_core               28865  1 i2c_dev
sunrpc                176441  15 nfsd,lockd,nfs_acl
iptable_filter          4673  0
ip_tables              21825  1 iptable_filter
wct4xxp               239552  95
zaptel                194376  253 ztdummy,zttranscode,wct4xxp
crc_ccitt               3521  1 zaptel
ds                     21705  0
yenta_socket           23105  0
pcmcia_core            69841  2 ds,yenta_socket
button                  9313  0
battery                11465  0
ac                      6985  0
hw_random               7393  0
tg3                   109381  0
floppy                 66065  0
dm_snapshot            19073  0
dm_zero                 3649  0
dm_mirror              32337  0
ext3                  137937  2
jbd                    69105  1 ext3
dm_mod                 68097  8 dm_snapshot,dm_zero,dm_mirror
cciss                  69809  5
sd_mod                 19393  0
scsi_mod              141457  2 cciss,sd_mod
[root@slk-apbx-01 ~]# rmmod wct4xxp
ERROR: Module wct4xxp is in use
[root@slk-apbx-01 ~]#