46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
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/*
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* cx18 file operation functions
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*
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* Derived from ivtv-fileops.h
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*
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* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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/* Testing/Debugging */
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int cx18_v4l2_open(struct inode *inode, struct file *filp);
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ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,
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loff_t *pos);
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ssize_t cx18_v4l2_write(struct file *filp, const char __user *buf, size_t count,
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loff_t *pos);
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int cx18_v4l2_close(struct inode *inode, struct file *filp);
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unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait);
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int cx18_start_capture(struct cx18_open_id *id);
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void cx18_stop_capture(struct cx18_open_id *id, int gop_end);
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void cx18_mute(struct cx18 *cx);
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void cx18_unmute(struct cx18 *cx);
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/* Utilities */
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/* Try to claim a stream for the filehandle. Return 0 on success,
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-EBUSY if stream already claimed. Once a stream is claimed, it
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remains claimed until the associated filehandle is closed. */
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int cx18_claim_stream(struct cx18_open_id *id, int type);
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/* Release a previously claimed stream. */
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void cx18_release_stream(struct cx18_stream *s);
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