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Edit File: i2c-algo-bit.h

/* SPDX-License-Identifier: GPL-2.0+ */ /* * i2c-algo-bit.h: i2c driver algorithms for bit-shift adapters * * Copyright (C) 1995-99 Simon G. Vogl * With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even * Frodo Looijaard <frodol@dds.nl> */ #ifndef _LINUX_I2C_ALGO_BIT_H #define _LINUX_I2C_ALGO_BIT_H #include <linux/i2c.h> /* --- Defines for bit-adapters --------------------------------------- */ /* * This struct contains the hw-dependent functions of bit-style adapters to * manipulate the line states, and to init any hw-specific features. This is * only used if you have more than one hw-type of adapter running. */ struct i2c_algo_bit_data { void *data; /* private data for lowlevel routines */ void (*setsda) (void *data, int state); void (*setscl) (void *data, int state); int (*getsda) (void *data); int (*getscl) (void *data); int (*pre_xfer) (struct i2c_adapter *); void (*post_xfer) (struct i2c_adapter *); /* local settings */ int udelay; /* half clock cycle time in us, minimum 2 us for fast-mode I2C, minimum 5 us for standard-mode I2C and SMBus, maximum 50 us for SMBus */ int timeout; /* in jiffies */ bool can_do_atomic; /* callbacks don't sleep, we can be atomic */ }; int i2c_bit_add_bus(struct i2c_adapter *); int i2c_bit_add_numbered_bus(struct i2c_adapter *); extern const struct i2c_algorithm i2c_bit_algo; #endif /* _LINUX_I2C_ALGO_BIT_H */