drivers/accessibility/speakup/speakup_acnt.h

File Facts

System

Linux kernel

Corpus path

drivers/accessibility/speakup/speakup_acnt.h

Extension

.h

Size

730 bytes

Lines

20

Domain

Driver Families

Bucket

drivers/accessibility

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#define SYNTH_IO_EXTENT	0x02

#define SYNTH_CLEAR	0x18		/* stops speech */

	/* Port Status Flags */
#define SYNTH_READABLE	0x01	/* mask for bit which is nonzero if a
				 * byte can be read from the data port
				 */
#define SYNTH_WRITABLE	0x02	/* mask for RDY bit, which when set to
				 * 1, indicates the data port is ready
				 *  to accept a byte of data.
				 */
#define SYNTH_QUIET	'S' /* synth is not speaking */
#define SYNTH_FULL	'F' /* synth is full. */
#define SYNTH_ALMOST_EMPTY 'M' /* synth has less than 2 seconds of text left */
#define SYNTH_SPEAKING	's' /* synth is speaking and has a fare way to go */

Annotation

• Atlas domain: Driver Families / drivers/accessibility.
• 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.