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46 lines
1.1 KiB
46 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0+ */ |
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/* |
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* Copyright (c) 2014 Google, Inc |
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*/ |
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#ifndef __I2C_EEPROM |
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#define __I2C_EEPROM |
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struct i2c_eeprom_ops { |
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int (*read)(struct udevice *dev, int offset, uint8_t *buf, int size); |
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int (*write)(struct udevice *dev, int offset, const uint8_t *buf, |
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int size); |
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}; |
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struct i2c_eeprom { |
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/* The EEPROM's page size in byte */ |
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unsigned long pagesize; |
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/* The EEPROM's page width in bits (pagesize = 2^pagewidth) */ |
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unsigned pagewidth; |
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}; |
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/* |
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* i2c_eeprom_read() - read bytes from an I2C EEPROM chip |
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* |
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* @dev: Chip to read from |
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* @offset: Offset within chip to start reading |
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* @buf: Place to put data |
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* @size: Number of bytes to read |
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* |
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* @return 0 on success, -ve on failure |
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*/ |
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int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size); |
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/* |
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* i2c_eeprom_write() - write bytes to an I2C EEPROM chip |
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* |
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* @dev: Chip to write to |
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* @offset: Offset within chip to start writing |
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* @buf: Buffer containing data to write |
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* @size: Number of bytes to write |
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* |
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* @return 0 on success, -ve on failure |
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*/ |
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int i2c_eeprom_write(struct udevice *dev, int offset, uint8_t *buf, int size); |
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#endif
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