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include
linux
i2c-algo-pcf.h
Go to the documentation of this file.
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/* ------------------------------------------------------------------------- */
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/* adap-pcf.h i2c driver algorithms for PCF8584 adapters */
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/* ------------------------------------------------------------------------- */
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/* Copyright (C) 1995-97 Simon G. Vogl
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1998-99 Hans Berglund
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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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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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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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301 USA. */
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/* ------------------------------------------------------------------------- */
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/* With some changes from Kyösti Mälkki <
[email protected]
> and even
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Frodo Looijaard <
[email protected]
> */
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#ifndef _LINUX_I2C_ALGO_PCF_H
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#define _LINUX_I2C_ALGO_PCF_H
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struct
i2c_algo_pcf_data
{
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void
*
data
;
/* private data for lolevel routines */
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void
(*
setpcf
) (
void
*
data
,
int
ctl
,
int
val
);
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int
(*
getpcf
) (
void
*
data
,
int
ctl
);
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int
(*
getown
) (
void
*
data
);
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int
(*
getclock
) (
void
*
data
);
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void
(*
waitforpin
) (
void
*
data
);
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void
(*
xfer_begin
) (
void
*
data
);
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void
(*
xfer_end
) (
void
*
data
);
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/* Multi-master lost arbitration back-off delay (msecs)
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* This should be set by the bus adapter or knowledgable client
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* if bus is multi-mastered, else zero
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*/
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unsigned
long
lab_mdelay
;
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};
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int
i2c_pcf_add_bus
(
struct
i2c_adapter
*);
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#endif
/* _LINUX_I2C_ALGO_PCF_H */
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