26 lines
1.1 KiB
C
26 lines
1.1 KiB
C
struct rt_device
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{
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struct rt_object parent; /**< inherit from rt_object */
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enum rt_device_class_type type; /**< device type */
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rt_uint16_t flag; /**< device flag */
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rt_uint16_t open_flag; /**< device open flag */
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rt_uint8_t ref_count; /**< reference count */
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rt_uint8_t device_id; /**< 0 - 255 */
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/* device call back */
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rt_err_t (*rx_indicate)(rt_device_t dev, rt_size_t size);
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rt_err_t (*tx_complete)(rt_device_t dev, void *buffer);
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/* common device interface */
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rt_err_t (*init) (rt_device_t dev);
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rt_err_t (*open) (rt_device_t dev, rt_uint16_t oflag);
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rt_err_t (*close) (rt_device_t dev);
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rt_size_t (*read) (rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size);
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rt_size_t (*write) (rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size);
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rt_err_t (*control)(rt_device_t dev, rt_uint8_t cmd, void *args);
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void *user_data; /**< device private data */
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};
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