diff options
Diffstat (limited to 'include/linux/hid-over-i2c.h')
| -rw-r--r-- | include/linux/hid-over-i2c.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/hid-over-i2c.h b/include/linux/hid-over-i2c.h new file mode 100644 index 000000000000..b70626723a38 --- /dev/null +++ b/include/linux/hid-over-i2c.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2024 Intel Corporation */ + +#ifndef _HID_OVER_I2C_H_ +#define _HID_OVER_I2C_H_ + +/** + * struct hidi2c_dev_descriptor - HIDI2C device descriptor definition + * @dev_desc_len: The length of the complete device descriptor, fixed to 0x1E (30). + * @bcd_ver: The version number of the HIDI2C protocol supported. + * In binary coded decimal (BCD) format. + * @report_desc_len: The length of the report descriptor + * @report_desc_reg: The register address to retrieve report descriptor + * @input_reg: the register address to retrieve input report + * @max_input_len: The length of the largest possible HID input (or feature) report + * @output_reg: the register address to send output report + * @max_output_len: The length of the largest output (or feature) report + * @cmd_reg: the register address to send command + * @data_reg: the register address to send command data + * @vendor_id: Device manufacturers vendor ID + * @product_id: Device unique model/product ID + * @version_id: Device’s unique version + * @reserved0: Reserved and should be 0 + * @reserved1: Reserved and should be 0 + */ +struct hidi2c_dev_descriptor { + __le16 dev_desc_len; + __le16 bcd_ver; + __le16 report_desc_len; + __le16 report_desc_reg; + __le16 input_reg; + __le16 max_input_len; + __le16 output_reg; + __le16 max_output_len; + __le16 cmd_reg; + __le16 data_reg; + __le16 vendor_id; + __le16 product_id; + __le16 version_id; + __le16 reserved0; + __le16 reserved1; +} __packed; + +#endif /* _HID_OVER_I2C_H_ */ |