1/* include/linux/logger.h 2 * 3 * Copyright (C) 2007-2008 Google, Inc. 4 * Author: Robert Love <rlove@android.com> 5 * 6 * This software is licensed under the terms of the GNU General Public 7 * License version 2, as published by the Free Software Foundation, and 8 * may be copied, distributed, and modified under those terms. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 */ 16 17#ifndef _LINUX_LOGGER_H 18#define _LINUX_LOGGER_H 19 20#include <linux/types.h> 21#include <linux/ioctl.h> 22 23struct logger_entry { 24 __u16 len; /* length of the payload */ 25 __u16 __pad; /* no matter what, we get 2 bytes of padding */ 26 __s32 pid; /* generating process's pid */ 27 __s32 tid; /* generating process's tid */ 28 __s32 sec; /* seconds since Epoch */ 29 __s32 nsec; /* nanoseconds */ 30 char msg[0]; /* the entry's payload */ 31}; 32 33#define LOGGER_LOG_RADIO "log_radio" /* radio-related messages */ 34#define LOGGER_LOG_EVENTS "log_events" /* system/hardware events */ 35#define LOGGER_LOG_MAIN "log_main" /* everything else */ 36 37#define LOGGER_ENTRY_MAX_LEN (4*1024) 38#define LOGGER_ENTRY_MAX_PAYLOAD \ 39 (LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry)) 40 41#define __LOGGERIO 0xAE 42 43#define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */ 44#define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */ 45#define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */ 46#define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */ 47 48#endif /* _LINUX_LOGGER_H */ 49