Lines Matching refs:xmit_buf
875 info->port.xmit_buf = (unsigned char *) page; in mxser_activate()
949 info->port.xmit_buf = NULL; in mxser_activate()
972 if (info->port.xmit_buf) { in mxser_shutdown_port()
973 free_page((unsigned long) info->port.xmit_buf); in mxser_shutdown_port()
974 info->port.xmit_buf = NULL; in mxser_shutdown_port()
1107 if (!info->port.xmit_buf) in mxser_write()
1116 memcpy(info->port.xmit_buf + info->xmit_head, buf, c); in mxser_write()
1148 if (!info->port.xmit_buf) in mxser_put_char()
1155 info->port.xmit_buf[info->xmit_head++] = ch; in mxser_put_char()
1179 if (info->xmit_cnt <= 0 || tty->stopped || !info->port.xmit_buf || in mxser_flush_chars()
1937 if (info->xmit_cnt && info->port.xmit_buf) { in mxser_start()
2177 if (port->port.xmit_buf == NULL) in mxser_transmit_chars()
2192 outb(port->port.xmit_buf[port->xmit_tail++], in mxser_transmit_chars()