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 23 struct 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_SYSTEM "log_system" /* system/framework messages */ 36 #define LOGGER_LOG_MAIN "log_main" /* everything else */ 37 38 #define LOGGER_ENTRY_MAX_LEN (4*1024) 39 #define LOGGER_ENTRY_MAX_PAYLOAD \ 40 (LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry)) 41 42 #define __LOGGERIO 0xAE 43 44 #define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */ 45 #define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */ 46 #define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */ 47 #define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */ 48 49 #endif /* _LINUX_LOGGER_H */ 50