lsmod

root@ubuntu:~# lsmod
Module                  Size  Used by
radeon                825934  1
ttm                    56633  1 radeon
drm_kms_helper         30200  1 radeon
drm                   168054  3 radeon,ttm,drm_kms_helper
i2c_algo_bit            5168  1 radeon
binfmt_misc             6599  1
snd_wavefront          33066  0
snd_cs4236             25734  0
snd_via82xx            20140  4
snd_via82xx_modem       8498  2
snd_wss_lib            22074  2 snd_wavefront,snd_cs4236
snd_ac97_codec         99227  2 snd_via82xx,snd_via82xx_modem
snd_cmipci             30469  4
snd_opl3_lib            8850  3 snd_wavefront,snd_cs4236,snd_cmipci
ac97_bus                1014  1 snd_ac97_codec
snd_hwdep               5040  2 snd_wavefront,snd_opl3_lib
snd_mpu401              5123  0
snd_mpu401_uart         5661  5 snd_wavefront,snd_cs4236,snd_via82xx,snd_cmipci,snd_mpu401
i2c_viapro              5777  0
snd_pcm                71475  6 snd_cs4236,snd_via82xx,snd_via82xx_modem,snd_wss_lib,snd_ac97_codec,snd_cmipci
snd_seq_midi            4588  0
via_ircc               21469  0
snd_rawmidi            17783  3 snd_wavefront,snd_mpu401_uart,snd_seq_midi
snd_seq_midi_event      6047  1 snd_seq_midi
snd_seq                47174  3 snd_seq_midi,snd_seq_midi_event
irda                  178938  1 via_ircc
snd_timer              19067  4 snd_wss_lib,snd_opl3_lib,snd_pcm,snd_seq
via_agp                 5322  1
snd_seq_device          5744  4 snd_opl3_lib,snd_seq_midi,snd_rawmidi,snd_seq
psmouse                59033  0
ppdev                   5556  0
ns558                   3068  0
crc_ccitt               1351  1 irda
agpgart                32011  3 ttm,drm,via_agp
serio_raw               4022  0
lp                      7342  0
gameport                9327  4 snd_via82xx,snd_cmipci,ns558
parport_pc             26058  1
shpchp                 29886  0
snd                    49006  37 snd_wavefront,snd_cs4236,snd_via82xx,snd_via82xx_modem,snd_wss_lib,snd_ac97_codec,snd_cmipci,snd_opl3_lib,snd_mpu401,snd_hwdep,snd_mpu401_uart,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
snd_page_alloc          7120  4 snd_via82xx,snd_via82xx_modem,snd_wss_lib,snd_pcm
parport                31492  3 ppdev,lp,parport_pc
soundcore                880  1 snd
via_rhine              19038  0
pata_via                7300  1
mii                     4425  1 via_rhine
floppy                 54311  0