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Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging

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* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: I2C bus multiplexer driver pca954x
  i2c: Multiplexed I2C bus core support
  i2c: Use a separate mutex for userspace client lists
  i2c: Make i2c_default_probe self-sufficient
  i2c: Drop dummy variable
  i2c: Move adapter locking helpers to i2c-core
  V4L/DVB: Use custom I2C probing function mechanism
  i2c: Add support for custom probe function
  i2c-dev: Use memdup_user
  i2c-dev: Remove unnecessary kmalloc casts
This commit is contained in:
Linus Torvalds 2010-08-12 10:06:29 -07:00
commit 1c00650c23
22 changed files with 805 additions and 116 deletions
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47
include/linux/i2c/pca954x.h Normal file
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/*
*
* pca954x.h - I2C multiplexer/switch support
*
* Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
* Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
* Michael Lawnick <michael.lawnick.ext@nsn.com>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _LINUX_I2C_PCA954X_H
#define _LINUX_I2C_PCA954X_H
/* Platform data for the PCA954x I2C multiplexers */
/* Per channel initialisation data:
* @adap_id: bus number for the adapter. 0 = don't care
* @deselect_on_exit: set this entry to 1, if your H/W needs deselection
* of this channel after transaction.
*
*/
struct pca954x_platform_mode {
int adap_id;
unsigned int deselect_on_exit:1;
};
/* Per mux/switch data, used with i2c_register_board_info */
struct pca954x_platform_data {
struct pca954x_platform_mode *modes;
int num_modes;
};
#endif /* _LINUX_I2C_PCA954X_H */