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37 lines
1.2 KiB
37 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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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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*/ |
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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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