|  | /* | 
|  | * include/linux/serial.h | 
|  | * | 
|  | * Copyright (C) 1992 by Theodore Ts'o. | 
|  | * | 
|  | * Redistribution of this file is permitted under the terms of the GNU | 
|  | * Public License (GPL) | 
|  | */ | 
|  | #ifndef _LINUX_SERIAL_H | 
|  | #define _LINUX_SERIAL_H | 
|  |  | 
|  | #include <asm/page.h> | 
|  | #include <uapi/linux/serial.h> | 
|  |  | 
|  |  | 
|  | /* | 
|  | * Counters of the input lines (CTS, DSR, RI, CD) interrupts | 
|  | */ | 
|  |  | 
|  | struct async_icount { | 
|  | __u32	cts, dsr, rng, dcd, tx, rx; | 
|  | __u32	frame, parity, overrun, brk; | 
|  | __u32	buf_overrun; | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * The size of the serial xmit buffer is 1 page, or 4096 bytes | 
|  | */ | 
|  | #define SERIAL_XMIT_SIZE PAGE_SIZE | 
|  |  | 
|  | #include <linux/compiler.h> | 
|  |  | 
|  | #endif /* _LINUX_SERIAL_H */ |