include/linux/tc.h

File Facts

System

Linux kernel

Corpus path

include/linux/tc.h

Extension

.h

Size

3546 bytes

Lines

143

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/compiler.h
• linux/device.h
• linux/ioport.h
• linux/types.h

Detected Declarations

• struct tcinfo
• struct tc_bus
• struct tc_dev
• struct tc_device_id
• struct tc_driver
• function tc_get_speed
• function tc_register_driver
• function tc_unregister_driver

Annotated Snippet

struct device_driver driver;
};

#define to_tc_driver(drv) container_of_const(drv, struct tc_driver, driver)

/*
 * Return TURBOchannel clock frequency in Hz.
 */
static inline unsigned long tc_get_speed(struct tc_bus *tbus)
{
	return 100000 * (10000 / (unsigned long)tbus->info.clk_period);
}

#ifdef CONFIG_TC

extern const struct bus_type tc_bus_type;

extern int tc_register_driver(struct tc_driver *tdrv);
extern void tc_unregister_driver(struct tc_driver *tdrv);

#else /* !CONFIG_TC */

static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }
static inline void tc_unregister_driver(struct tc_driver *tdrv) { }

#endif /* CONFIG_TC */

/*
 * These have to be provided by the architecture.
 */
extern int tc_preadb(u8 *valp, void __iomem *addr);
extern int tc_bus_get_info(struct tc_bus *tbus);
extern void tc_device_get_irq(struct tc_dev *tdev);

#endif /* _LINUX_TC_H */

Annotation

• Immediate include surface: `linux/compiler.h`, `linux/device.h`, `linux/ioport.h`, `linux/types.h`.
• Detected declarations: `struct tcinfo`, `struct tc_bus`, `struct tc_dev`, `struct tc_device_id`, `struct tc_driver`, `function tc_get_speed`, `function tc_register_driver`, `function tc_unregister_driver`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: pattern 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.