drivers/input/mouse/elan_i2c.h

File Facts

System

Linux kernel

Corpus path

drivers/input/mouse/elan_i2c.h

Extension

.h

Size

3742 bytes

Lines

122

Domain

Driver Families

Bucket

drivers/input

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct i2c_client
• struct completion
• struct elan_transport_ops
• enum tp_mode

Annotated Snippet

struct elan_transport_ops {
	int (*initialize)(struct i2c_client *client);
	int (*sleep_control)(struct i2c_client *, bool sleep);
	int (*power_control)(struct i2c_client *, bool enable);
	int (*set_mode)(struct i2c_client *client, u8 mode);

	int (*calibrate)(struct i2c_client *client);
	int (*calibrate_result)(struct i2c_client *client, u8 *val);

	int (*get_baseline_data)(struct i2c_client *client,
				 bool max_baseline, u8 *value);

	int (*get_version)(struct i2c_client *client, u8 pattern, bool iap,
			   u8 *version);
	int (*get_sm_version)(struct i2c_client *client, u8 pattern,
			      u16 *ic_type, u8 *version, u8 *clickpad);
	int (*get_checksum)(struct i2c_client *client, bool iap, u16 *csum);
	int (*get_product_id)(struct i2c_client *client, u16 *id);

	int (*get_max)(struct i2c_client *client,
		       unsigned int *max_x, unsigned int *max_y);
	int (*get_resolution)(struct i2c_client *client,
			      u8 *hw_res_x, u8 *hw_res_y);
	int (*get_num_traces)(struct i2c_client *client,
			      unsigned int *x_tracenum,
			      unsigned int *y_tracenum);

	int (*iap_get_mode)(struct i2c_client *client, enum tp_mode *mode);
	int (*iap_reset)(struct i2c_client *client);

	int (*prepare_fw_update)(struct i2c_client *client, u16 ic_type,
				 u8 iap_version, u16 fw_page_size);
	int (*write_fw_block)(struct i2c_client *client, u16 fw_page_size,
			      const u8 *page, u16 checksum, int idx);
	int (*finish_fw_update)(struct i2c_client *client,
				struct completion *reset_done);

	int (*get_report_features)(struct i2c_client *client, u8 pattern,
				   unsigned int *features,
				   unsigned int *report_len);
	int (*get_report)(struct i2c_client *client, u8 *report,
			  unsigned int report_len);
	int (*get_pressure_adjustment)(struct i2c_client *client,
				       int *adjustment);
	int (*get_pattern)(struct i2c_client *client, u8 *pattern);
};

extern const struct elan_transport_ops elan_smbus_ops, elan_i2c_ops;

#endif /* _ELAN_I2C_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct i2c_client`, `struct completion`, `struct elan_transport_ops`, `enum tp_mode`.
• Atlas domain: Driver Families / drivers/input.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.