SND_CNT
limit = MIN(len, bitstr_size(SND_CNT));
limit = SND_CNT;
MSC_CNT + LED_CNT + SND_CNT + SW_CNT + FF_CNT)
bit_ffs(evdev->ev_snd_flags, SND_CNT, &res);
KASSERT(code < SND_CNT, ("invalid evdev snd property"));
if (code >= SND_CNT)
bitstr_t bit_decl(ev_snd_flags, SND_CNT);
bitstr_t bit_decl(ev_snd_states, SND_CNT); /* (s) */