1336 	struct uaudio_chan_alt *chan_alt = &ch->usb_alt[alt];  in uaudio_get_buffer_size()  local
1339 	int_frames = uaudio_get_interval_frames(chan_alt->p_ed1);  in uaudio_get_buffer_size()
1342 	buf_size = chan_alt->sample_size *  in uaudio_get_buffer_size()
1343 	    howmany(chan_alt->sample_rate * ms, 1000);  in uaudio_get_buffer_size()
1350 	struct uaudio_chan_alt *chan_alt = &ch->usb_alt[alt];  in uaudio_max_buffer_size()  local
1353 	buf_size = chan_alt->sample_size *  in uaudio_max_buffer_size()
1354 	    howmany(chan_alt->sample_rate * UAUDIO_BUFFER_MS_MAX, 1000);  in uaudio_max_buffer_size()
1362 	struct uaudio_chan_alt *chan_alt;  in uaudio_configure_msg_sub()  local
1422 	chan_alt = chan->usb_alt + next_alt;  in uaudio_configure_msg_sub()
1425 	    chan_alt->iface_index, chan_alt->iface_alt_index);  in uaudio_configure_msg_sub()
1456 			    sc->sc_mixer_iface_no, x, chan_alt->sample_rate)) {  in uaudio_configure_msg_sub()
1465 	} else if (chan_alt->p_sed.v1->bmAttributes & UA_SED_FREQ_CONTROL) {  in uaudio_configure_msg_sub()
1467 		    chan_alt->p_ed1->bEndpointAddress, chan_alt->sample_rate)) {  in uaudio_configure_msg_sub()
1476 	if (usbd_transfer_setup(sc->sc_udev, &chan_alt->iface_index, chan->xfer,  in uaudio_configure_msg_sub()
1477 	    chan_alt->usb_cfg, UAUDIO_NCHANBUFS + 1, chan, chan->pcm_mtx)) {  in uaudio_configure_msg_sub()
1500 	    ((chan_alt->sample_rate / fps) * chan_alt->sample_size);  in uaudio_configure_msg_sub()
1501 	chan->bytes_per_frame[1] = howmany(chan_alt->sample_rate, fps) *  in uaudio_configure_msg_sub()
1502 	    chan_alt->sample_size;  in uaudio_configure_msg_sub()
1506 	chan->sample_rem = chan_alt->sample_rate % fps;  in uaudio_configure_msg_sub()
1750 	struct uaudio_chan_alt *chan_alt;  in uaudio_chan_fill_info_sub()  local
2055 		chan_alt = &chan->usb_alt[chan->num_alt++];  in uaudio_chan_fill_info_sub()
2064 		chan_alt->sample_rate = rate;  in uaudio_chan_fill_info_sub()
2065 		chan_alt->p_asf1d = asf1d;  in uaudio_chan_fill_info_sub()
2066 		chan_alt->p_ed1 = ed1;  in uaudio_chan_fill_info_sub()
2067 		chan_alt->p_fmt = p_fmt;  in uaudio_chan_fill_info_sub()
2068 		chan_alt->p_sed = sed;  in uaudio_chan_fill_info_sub()
2069 		chan_alt->iface_index = curidx;  in uaudio_chan_fill_info_sub()
2070 		chan_alt->iface_alt_index = alt_index;  in uaudio_chan_fill_info_sub()
2073 			chan_alt->usb_cfg = uaudio_cfg_record;  in uaudio_chan_fill_info_sub()
2075 			chan_alt->usb_cfg = uaudio_cfg_play;  in uaudio_chan_fill_info_sub()
2077 		chan_alt->sample_size = (UAUDIO_MAX_CHAN(channels) *  in uaudio_chan_fill_info_sub()
2079 		chan_alt->channels = channels;  in uaudio_chan_fill_info_sub()
2084 			    chan_alt->sample_size * (rate / 1000),  in uaudio_chan_fill_info_sub()
2085 			    chan_alt->sample_size * (rate / 4000));  in uaudio_chan_fill_info_sub()
2090 		format = chan_alt->p_fmt->freebsd_fmt;  in uaudio_chan_fill_info_sub()
2093 		format = SND_FORMAT(format, chan_alt->channels, 0);  in uaudio_chan_fill_info_sub()
2095 		switch (chan_alt->channels) {  in uaudio_chan_fill_info_sub()
2134 		if (chan_alt->channels > UAUDIO_MATRIX_MAX)  in uaudio_chan_fill_info_sub()