131     CharBackend *be = d->backends[mux_nr];  in mux_chr_send_event()  local
133     if (be && be->chr_event) {  in mux_chr_send_event()
134         be->chr_event(be->opaque, event);  in mux_chr_send_event()
203     CharBackend *be = d->backends[m];  in mux_chr_accept_input()  local
205     while (be && d->prod[m] != d->cons[m] &&  in mux_chr_accept_input()
206            be->chr_can_read && be->chr_can_read(be->opaque)) {  in mux_chr_accept_input()
207         be->chr_read(be->opaque,  in mux_chr_accept_input()
216     CharBackend *be = d->backends[m];  in mux_chr_can_read()  local
222     if (be && be->chr_can_read) {  in mux_chr_can_read()
223         return be->chr_can_read(be->opaque);  in mux_chr_can_read()
234     CharBackend *be = d->backends[m];  in mux_chr_read()  local
242                 be && be->chr_can_read &&  in mux_chr_read()
243                 be->chr_can_read(be->opaque)) {  in mux_chr_read()
244                 be->chr_read(be->opaque, &buf[i], 1);  in mux_chr_read()
292         CharBackend *be = d->backends[bit];  in char_mux_finalize()  local
293         be->chr = NULL;  in char_mux_finalize()
360     chr->be = d->backends[focus];  in mux_set_focus()