#ifndef __SOUND_SEQ_OSS_H #define __SOUND_SEQ_OSS_H /* * OSS compatible sequencer driver * * Copyright (C) 1998,99 Takashi Iwai * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include /* * argument structure for synthesizer operations */ struct snd_seq_oss_arg { /* given by OSS sequencer */ int app_index; /* application unique index */ int file_mode; /* file mode - see below */ int seq_mode; /* sequencer mode - see below */ /* following must be initialized in open callback */ struct snd_seq_addr addr; /* opened port address */ void *private_data; /* private data for lowlevel drivers */ /* note-on event passing mode: initially given by OSS seq, * but configurable by drivers - see below */ int event_passing; }; /* * synthesizer operation callbacks */ struct snd_seq_oss_callback { struct module *owner; int (*open)(struct snd_seq_oss_arg *p, void *closure); int (*close)(struct snd_seq_oss_arg *p); int (*ioctl)(struct snd_seq_oss_arg *p, unsigned int cmd, unsigned long arg); int (*load_patch)(struct snd_seq_oss_arg *p, int format, const char __user *buf, int offs, int count); int (*reset)(struct snd_seq_oss_arg *p); int (*raw_event)(struct snd_seq_oss_arg *p, unsigned char *data); }; /* flag: file_mode */ #define SNDRV_SEQ_OSS_FILE_ACMODE 3 #define SNDRV_SEQ_OSS_FILE_READ 1 #define SNDRV_SEQ_OSS_FILE_WRITE 2 #define SNDRV_SEQ_OSS_FILE_NONBLOCK 4 /* flag: seq_mode */ #define SNDRV_SEQ_OSS_MODE_SYNTH 0 #define SNDRV_SEQ_OSS_MODE_MUSIC 1 /* flag: event_passing */ #define SNDRV_SEQ_OSS_PROCESS_EVENTS 0 /* key == 255 is processed as velocity change */ #define SNDRV_SEQ_OSS_PASS_EVENTS 1 /* pass all events to callback */ #define SNDRV_SEQ_OSS_PROCESS_KEYPRESS 2 /* key >= 128 will be processed as key-pressure */ /* default control rate: fixed */ #define SNDRV_SEQ_OSS_CTRLRATE 100 /* default max queue length: configurable by module option */ #define SNDRV_SEQ_OSS_MAX_QLEN 1024 /* * data pointer to snd_seq_register_device */ struct snd_seq_oss_reg { int type; int subtype; int nvoices; struct snd_seq_oss_callback oper; void *private_data; }; /* device id */ #define SNDRV_SEQ_DEV_ID_OSS "seq-oss" #endif /* __SOUND_SEQ_OSS_H */ '>usb/mon
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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /drivers/usb/mon
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'drivers/usb/mon')