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41 lines
1004 B
41 lines
1004 B
/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */ |
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/* |
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* Definitions for virtio I2C Adpter |
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* |
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* Copyright (c) 2021 Intel Corporation. All rights reserved. |
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*/ |
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#ifndef _UAPI_LINUX_VIRTIO_I2C_H |
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#define _UAPI_LINUX_VIRTIO_I2C_H |
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#include <linux/const.h> |
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#include <linux/types.h> |
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/* The bit 0 of the @virtio_i2c_out_hdr.@flags, used to group the requests */ |
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#define VIRTIO_I2C_FLAGS_FAIL_NEXT _BITUL(0) |
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/** |
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* struct virtio_i2c_out_hdr - the virtio I2C message OUT header |
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* @addr: the controlled device address |
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* @padding: used to pad to full dword |
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* @flags: used for feature extensibility |
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*/ |
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struct virtio_i2c_out_hdr { |
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__le16 addr; |
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__le16 padding; |
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__le32 flags; |
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}; |
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/** |
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* struct virtio_i2c_in_hdr - the virtio I2C message IN header |
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* @status: the processing result from the backend |
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*/ |
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struct virtio_i2c_in_hdr { |
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__u8 status; |
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}; |
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/* The final status written by the device */ |
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#define VIRTIO_I2C_MSG_OK 0 |
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#define VIRTIO_I2C_MSG_ERR 1 |
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#endif /* _UAPI_LINUX_VIRTIO_I2C_H */
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