ashlea@Eclipse-Ashlea:~$ sudo lsmod| grep ^snd|awk {'print $1'}|xargs rmmod
ERROR: Removing 'snd_rtctimer': Operation not permitted
ERROR: Removing 'snd_pcm_oss': Operation not permitted
ERROR: Module snd_mixer_oss is in use by snd_pcm_oss
ERROR: Module snd_pcm is in use by snd_pcm_oss
ERROR: Removing 'snd_seq_dummy': Operation not permitted
ERROR: Removing 'snd_seq_oss': Operation not permitted
ERROR: Removing 'snd_seq_midi': Operation not permitted
ERROR: Module snd_rawmidi is in use by snd_seq_midi
ERROR: Module snd_seq_midi_event is in use by snd_seq_oss,snd_seq_midi
ERROR: Module snd_seq is in use by snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
ERROR: Module snd_timer is in use by snd_rtctimer,snd_pcm,snd_seq
ERROR: Module snd_seq_device is in use by snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
ERROR: Module snd is in use by snd_rtctimer,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
ERROR: Module snd_page_alloc is in use by snd_pcm