[alsa-devel] Lost dB volumes on USB headset between 2.6.38 and 3.0

Hmm, I and Colin Guthrie have found a regression between kernels 2.6.38 and 3.0.

When running "amixer -D hw:handset" for this device under 2.6.38, the attached file is returned. Under 3.0, the dB information is missing. This can't be intentional, can it?