150 	unsigned char *tx_buf;  member
1025 			write_reg(info, CHA + TXFIFO, *(info->tx_buf + info->tx_get));  in tx_ready()
1028 					  *((unsigned short*)(info->tx_buf + info->tx_get)));  in tx_ready()
1278 	if (!info->tx_buf) {  in startup()
1280 		info->tx_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);  in startup()
1281 		if (!info->tx_buf) {  in startup()
1339 	if (info->tx_buf) {  in shutdown()
1340 		free_page((unsigned long) info->tx_buf);  in shutdown()
1341 		info->tx_buf = NULL;  in shutdown()
1505 	if (!info->tx_buf)  in mgslpc_put_char()
1512 			info->tx_buf[info->tx_put++] = ch;  in mgslpc_put_char()
1538 	    tty->hw_stopped || !info->tx_buf)  in mgslpc_flush_chars()
1573 		!info->tx_buf)  in mgslpc_write()
1594 		memcpy(info->tx_buf + info->tx_put, buf, c);  in mgslpc_write()
3965 	skb_copy_from_linear_data(skb, info->tx_buf, skb->len);  in hdlcdev_xmit()