diff options
author | Robert Love <rlove@google.com> | 2008-12-19 18:02:58 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-06 13:52:42 -0800 |
commit | 875f194c48ddae3797f8d61e98aacd8a8ecef927 (patch) | |
tree | 9dd83b571be89cd500dd70b3d38e23b25f6956ef /drivers/staging/android/logger.h | |
parent | 9279bcc31698842961a30bb05b00aef7236dd728 (diff) |
Staging: android: add logging driver
Signed-off-by: Robert Love <rlove@google.com>
Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/android/logger.h')
-rw-r--r-- | drivers/staging/android/logger.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/staging/android/logger.h b/drivers/staging/android/logger.h new file mode 100644 index 00000000000..a562434d741 --- /dev/null +++ b/drivers/staging/android/logger.h @@ -0,0 +1,48 @@ +/* include/linux/logger.h + * + * Copyright (C) 2007-2008 Google, Inc. + * Author: Robert Love <rlove@android.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _LINUX_LOGGER_H +#define _LINUX_LOGGER_H + +#include <linux/types.h> +#include <linux/ioctl.h> + +struct logger_entry { + __u16 len; /* length of the payload */ + __u16 __pad; /* no matter what, we get 2 bytes of padding */ + __s32 pid; /* generating process's pid */ + __s32 tid; /* generating process's tid */ + __s32 sec; /* seconds since Epoch */ + __s32 nsec; /* nanoseconds */ + char msg[0]; /* the entry's payload */ +}; + +#define LOGGER_LOG_RADIO "log_radio" /* radio-related messages */ +#define LOGGER_LOG_EVENTS "log_events" /* system/hardware events */ +#define LOGGER_LOG_MAIN "log_main" /* everything else */ + +#define LOGGER_ENTRY_MAX_LEN (4*1024) +#define LOGGER_ENTRY_MAX_PAYLOAD \ + (LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry)) + +#define __LOGGERIO 0xAE + +#define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */ +#define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */ +#define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */ +#define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */ + +#endif /* _LINUX_LOGGER_H */ |