| Michael Lawnick | 0826374 | 2010-08-11 18:21:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * i2c-mux.h - functions for the i2c-bus mux support |
| 4 | * |
| 5 | * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it> |
| 6 | * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it> |
| 7 | * Michael Lawnick <michael.lawnick.ext@nsn.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #ifndef _LINUX_I2C_MUX_H |
| 25 | #define _LINUX_I2C_MUX_H |
| 26 | |
| 27 | #ifdef __KERNEL__ |
| 28 | |
| 29 | /* |
| 30 | * Called to create a i2c bus on a multiplexed bus segment. |
| 31 | * The mux_dev and chan_id parameters are passed to the select |
| 32 | * and deselect callback functions to perform hardware-specific |
| 33 | * mux control. |
| 34 | */ |
| 35 | struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent, |
| 36 | void *mux_dev, u32 force_nr, u32 chan_id, |
| 37 | int (*select) (struct i2c_adapter *, |
| 38 | void *mux_dev, u32 chan_id), |
| 39 | int (*deselect) (struct i2c_adapter *, |
| 40 | void *mux_dev, u32 chan_id)); |
| 41 | |
| 42 | int i2c_del_mux_adapter(struct i2c_adapter *adap); |
| 43 | |
| 44 | #endif /* __KERNEL__ */ |
| 45 | |
| 46 | #endif /* _LINUX_I2C_MUX_H */ |