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How can I see hardware information for my sound card in Linux?

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The "hardware information" phrase is a bit ambiguous. If you will specify it more precisely you will probably get better answers. – whitequark Aug 14 '10 at 3:27
up vote 4 down vote accepted

lsusb - Display information about USB buses in the system and the devices connected to them.


lspci - Display information about PCI buses in the system and devices connected to them.

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cat /proc/asound/card*/codec* 
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cat: /proc/asound/card0/codec97#0: Is a directory – whitequark Aug 14 '10 at 3:23
Oh now that's interesting. Usually it's a text file with a full codec dump for the device. So what files are in the directory? – maco Aug 14 '10 at 4:25 – whitequark Aug 14 '10 at 22:32
ok then, try /proc/asound/card0/codec97#0/ac97#0-0 – maco Aug 15 '10 at 7:04

aplay -L or -h as there are a lot of options

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No need for sudo on Ubuntu, just checked that on fresh 10.04 install. It's better not to use sudo when you're not required to do it just because it lowers your chances to accidentally run something destructive. – whitequark Aug 14 '10 at 3:24
@whitequark - True, I corrected that. – laurent Aug 14 '10 at 21:28

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