관리-도구

편집 파일: eeprom_93xx46.h

/* SPDX-License-Identifier: GPL-2.0 */ /* * Module: eeprom_93xx46 * platform description for 93xx46 EEPROMs. */ #include <linux/gpio/consumer.h> struct eeprom_93xx46_platform_data { unsigned char flags; #define EE_ADDR8 0x01 /* 8 bit addr. cfg */ #define EE_ADDR16 0x02 /* 16 bit addr. cfg */ #define EE_READONLY 0x08 /* forbid writing */ #define EE_SIZE1K 0x10 /* 1 kb of data, that is a 93xx46 */ #define EE_SIZE2K 0x20 /* 2 kb of data, that is a 93xx56 */ #define EE_SIZE4K 0x40 /* 4 kb of data, that is a 93xx66 */ unsigned int quirks; /* Single word read transfers only; no sequential read. */ #define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0) /* Instructions such as EWEN are (addrlen + 2) in length. */ #define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1) /* Add extra cycle after address during a read */ #define EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE BIT(2) /* * optional hooks to control additional logic * before and after spi transfer. */ void (*prepare)(void *); void (*finish)(void *); struct gpio_desc *select; };