#ifndef __SOUND_HWDEP_H #define __SOUND_HWDEP_H /* * Hardware dependent layer * Copyright (c) by Jaroslav Kysela * * * 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 struct snd_hwdep; /* hwdep file ops; all ops can be NULL */ struct snd_hwdep_ops { long long (*llseek)(struct snd_hwdep *hw, struct file *file, long long offset, int orig); long (*read)(struct snd_hwdep *hw, char __user *buf, long count, loff_t *offset); long (*write)(struct snd_hwdep *hw, const char __user *buf, long count, loff_t *offset); int (*open)(struct snd_hwdep *hw, struct file * file); int (*release)(struct snd_hwdep *hw, struct file * file); unsigned int (*poll)(struct snd_hwdep *hw, struct file *file, poll_table *wait); int (*ioctl)(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg); int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file, unsigned int cmd, unsigned long arg); int (*mmap)(struct snd_hwdep *hw, struct file *file, struct vm_area_struct *vma); int (*dsp_status)(struct snd_hwdep *hw, struct snd_hwdep_dsp_status *status); int (*dsp_load)(struct snd_hwdep *hw, struct snd_hwdep_dsp_image *image); }; struct snd_hwdep { struct snd_card *card; struct list_head list; int device; char id[32]; char name[80]; int iface; #ifdef CONFIG_SND_OSSEMUL int oss_type; int ossreg; #endif struct snd_hwdep_ops ops; wait_queue_head_t open_wait; void *private_data; void (*private_free) (struct snd_hwdep *hwdep); struct device dev; struct mutex open_mutex; int used; /* reference counter */ unsigned int dsp_loaded; /* bit fields of loaded dsp indices */ unsigned int exclusive:1; /* exclusive access mode */ }; extern int snd_hwdep_new(struct snd_card *card, char *id, int device, struct snd_hwdep **rhwdep); #endif /* __SOUND_HWDEP_H */ ption>space:mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-12 21:58:13 -0800
commite7aa8c2eb11ba69b1b69099c3c7bd6be3087b0ba (patch)
treef63906f41699c8e38af9d12b063e2ceab0286ef2
parente34bac726d27056081d0250c0e173e4b155aa340 (diff)
parent868c97a846a73e937d835b09b8c885a69df50ec8 (diff)
Merge tag 'docs-4.10' of git://git.lwn.net/linuxHEADmaster
Pull documentation update from Jonathan Corbet: "These are the documentation changes for 4.10. It's another busy cycle for the docs tree, as the sphinx conversion continues. Highlights include: - Further work on PDF output, which remains a bit of a pain but should be more solid now. - Five more DocBook template files converted to Sphinx. Only 27 to go... Lots of plain-text files have also been converted and integrated. - Images in binary formats have been replaced with more source-friendly versions. - Various bits of organizational work, including the renaming of various files discussed at the kernel summit. - New documentation for the device_link mechanism. ... and, of course, lots of typo fixes and small updates" * tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits) dma-buf: Extract dma-buf.rst Update Documentation/00-INDEX docs: 00-INDEX: document directories/files with no docs docs: 00-INDEX: remove non-existing entries docs: 00-INDEX: add missing entries for documentation files/dirs docs: 00-INDEX: consolidate process/ and admin-guide/ description scripts: add a script to check if Documentation/00-INDEX is sane Docs: change sh -> awk in REPORTING-BUGS Documentation/core-api/device_link: Add initial documentation core-api: remove an unexpected unident ppc/idle: Add documentation for powersave=off Doc: Correct typo, "Introdution" => "Introduction" Documentation/atomic_ops.txt: convert to ReST markup Documentation/local_ops.txt: convert to ReST markup Documentation/assoc_array.txt: convert to ReST markup docs-rst: parse-headers.pl: cleanup the documentation docs-rst: fix media cleandocs target docs-rst: media/Makefile: reorganize the rules docs-rst: media: build SVG from graphviz files docs-rst: replace bayer.png by a SVG image ...
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