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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note *//* * Definitions for virtio I2C Adpter * * Copyright (c) 2021 Intel Corporation. All rights reserved. */
#ifndef _UAPI_LINUX_VIRTIO_I2C_H#define _UAPI_LINUX_VIRTIO_I2C_H
#include <linux/const.h>#include <linux/types.h>
/* Virtio I2C Feature bits */#define VIRTIO_I2C_F_ZERO_LENGTH_REQUEST 0
/* The bit 0 of the @virtio_i2c_out_hdr.@flags, used to group the requests */#define VIRTIO_I2C_FLAGS_FAIL_NEXT _BITUL(0)
/* The bit 1 of the @virtio_i2c_out_hdr.@flags, used to mark a buffer as read */#define VIRTIO_I2C_FLAGS_M_RD _BITUL(1)
/** * struct virtio_i2c_out_hdr - the virtio I2C message OUT header * @addr: the controlled device address * @padding: used to pad to full dword * @flags: used for feature extensibility */struct virtio_i2c_out_hdr { __le16 addr; __le16 padding; __le32 flags;};
/** * struct virtio_i2c_in_hdr - the virtio I2C message IN header * @status: the processing result from the backend */struct virtio_i2c_in_hdr { __u8 status;};
/* The final status written by the device */#define VIRTIO_I2C_MSG_OK 0#define VIRTIO_I2C_MSG_ERR 1
#endif /* _UAPI_LINUX_VIRTIO_I2C_H */