devices in /dev

[Eric Kosten]

Hello to all.  First can anyone let me know what these items do and or for?
I know what the midi, snd, and some of the others are:

Module Size Used by

vfat 14785 1

fat 45409 1 vfat

autofs4 24005 0

i2c_dev 10433 0

i2c_core 22079 1 i2c_dev

sunrpc 160421 1

dm_mod 54741 0

button 6481 0

battery 8517 0

ac 4805 0

md5 4033 1

ipv6 232705 8

usblp 12993 0

uhci_hcd 31449 0

ehci_hcd 31685 0

hw_random 5589 0

emu10k1_gp 3649 0

snd_intel8x0 34829 0

gameport 4801 2 emu10k1_gp,snd_intel8x0

snd_mpu401_uart 8769 1 snd_intel8x0

snd_emu10k1 93769 0

snd_rawmidi 26725 2 snd_mpu401_uart,snd_emu10k1

snd_pcm_oss 47609 0

snd_mixer_oss 17217 1 snd_pcm_oss

snd_pcm 97993 3 snd_intel8x0,snd_emu10k1,snd_pcm_oss

snd_timer 29765 1 snd_pcm

snd_seq_device 8137 2 snd_emu10k1,snd_rawmidi

snd_ac97_codec 64401 2 snd_intel8x0,snd_emu10k1

snd_page_alloc 9673 3 snd_intel8x0,snd_emu10k1,snd_pcm

snd_util_mem 4801 1 snd_emu10k1

snd_hwdep 9413 1 snd_emu10k1

snd 54053 11
snd_intel8x0,snd_mpu401_uart,snd_emu10k1,snd_rawmidi,snd_pcm_oss,snd_mixer_o
ss,snd_pcm,snd_timer,snd_seq_device,snd_ac97_codec,snd_hwdep

soundcore 9889 1 snd

b44 22341 0

mii 4673 1 b44

floppy 58609 1

speakup_dectlk 5329 0

speakupmain 57125 1 speakup_dectlk

pcspkr 4001 0

ext3 116809 1

jbd 74969 1 ext3

second:

under fedora, the adduser -u for user name and -p for password, the -p
option wants a set of numbers or something.

Thanks

Eric