user@dev:/usr/src/cdcacm-0.1$ modprobe -r cdcacm
user@dev:/usr/src/cdcacm-0.1$ rmmod cdcacm
ERROR: Module cdcacm does not exist in /proc/modules
user@dev:/usr/src/cdcacm-0.1$ sudo modprobe cdcacm
FATAL: Error inserting cdcacm (/lib/modules/3.0.0-14-generic/updates/dkms/cdcacm.ko): Device or resource busy
user@dev:/usr/src/cdcacm-0.1$ lsmod
Module Size Used by
usbhid 41905 0
psmouse 73673 0
cdc_acm 22305 0
vmhgfs 57265 0
vsock 47098 0
bnep 17923 2
bluetooth 148839 5 bnep
snd_ens1371 24820 2
gameport 15060 1 snd_ens1371
snd_ac97_codec 106082 1 snd_ens1371
ac97_bus 12642 1 snd_ac97_codec
snd_pcm 80435 2 snd_ens1371,snd_ac97_codec
ppdev 12849 0
snd_seq_midi 13132 0
snd_rawmidi 25241 2 snd_ens1371,snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
joydev 17393 0
vmw_balloon 12729 0
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28932 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
serio_raw 12990 0
snd 55902 11 snd_ens1371,snd_ac97_codec,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 12600 1 snd
snd_page_alloc 14115 1 snd_pcm
parport_pc 32114 1
vmci 71337 2 vmhgfs,vsock
binfmt_misc 17292 1
i2c_piix4 13093 0
shpchp 32356 0
lp 17455 0
parport 40930 3 ppdev,parport_pc,lp
hid 77367 1 usbhid
mptspi 22475 2
mptscsih 39377 1 mptspi
mptbase 96811 2 mptspi,mptscsih
scsi_transport_spi 25532 1 mptspi
floppy 60310 0
vmxnet 22375 0
vmw_pvscsi 18334 0
vmxnet3 44926 0