3 * i2c-mux.h - functions for the i2c-bus mux support
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>
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.
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.
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., 51 Franklin Street, Fifth Floor, Boston,
25 #ifndef _LINUX_I2C_MUX_H
26 #define _LINUX_I2C_MUX_H
31 * Called to create a i2c bus on a multiplexed bus segment.
32 * The mux_dev and chan_id parameters are passed to the select
33 * and deselect callback functions to perform hardware-specific
36 struct i2c_adapter
*i2c_add_mux_adapter(struct i2c_adapter
*parent
,
37 struct device
*mux_dev
,
38 void *mux_priv
, u32 force_nr
, u32 chan_id
,
40 int (*select
) (struct i2c_adapter
*,
41 void *mux_dev
, u32 chan_id
),
42 int (*deselect
) (struct i2c_adapter
*,
43 void *mux_dev
, u32 chan_id
));
45 void i2c_del_mux_adapter(struct i2c_adapter
*adap
);
47 #endif /* __KERNEL__ */
49 #endif /* _LINUX_I2C_MUX_H */
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