include/uapi/linux/usb/g_printer.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/usb/g_printer.h

Extension

.h

Size

1385 bytes

Lines

37

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source 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.

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

#ifndef __LINUX_USB_G_PRINTER_H
#define __LINUX_USB_G_PRINTER_H

#define PRINTER_NOT_ERROR	0x08
#define PRINTER_SELECTED	0x10
#define PRINTER_PAPER_EMPTY	0x20

/* The 'g' code is also used by gadgetfs ioctl requests.
 * Don't add any colliding codes to either driver, and keep
 * them in unique ranges (size 0x20 for now).
 */
#define GADGET_GET_PRINTER_STATUS	_IOR('g', 0x21, unsigned char)
#define GADGET_SET_PRINTER_STATUS	_IOWR('g', 0x22, unsigned char)

#endif /* __LINUX_USB_G_PRINTER_H */

Annotation

• Atlas domain: Core OS / Core Kernel Interface.
• 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.