[LAU] zoom h4 not visible/available

[Tim O'Guin]

> For modprobe it doesn't make a difference if one uses _ or -, but you're
> right, the "lsmod | grep ..." line only works with underscores.

So `lsmod | grep snd_usb_audio` returns output?  If it shows
"snd_usb_audio" on the left after running that then the module is
loaded.  Also, if the module doesn't exist, then `modprobe modulename`
will return an error, otherwise there will be no output, which means
the module has loaded.