PCM_RES
#define PCM_MIN (PCM_0dB - PCM_RES)
uinfo->value.integer.max = PCM_RES; /* 0dB */
if (nvol > PCM_RES)
#define PCM_MIN (PCM_0dB - PCM_RES)
uinfo->value.integer.max = PCM_RES; /* 0dB */
if (nvol > PCM_RES)