drivers/video/fbdev/n411.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/n411.c

Extension

.c

Size

5018 bytes

Lines

209

Domain

Driver Families

Bucket

drivers/video

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/kernel.h
• linux/errno.h
• linux/string.h
• linux/delay.h
• linux/interrupt.h
• linux/fb.h
• linux/init.h
• linux/platform_device.h
• linux/list.h
• linux/uaccess.h
• linux/irq.h
• video/hecubafb.h

Detected Declarations

• function n411_set_ctl
• function n411_get_ctl
• function n411_set_data
• function n411_wait_for_ack
• function n411_init_control
• function n411_init_board
• function n411_init
• function n411_exit
• module init n411_init

Annotated Snippet

module_init(n411_init);
module_exit(n411_exit);

module_param(nosplash, uint, 0);
MODULE_PARM_DESC(nosplash, "Disable doing the splash screen");
module_param_hw(dio_addr, ulong, ioport, 0);
MODULE_PARM_DESC(dio_addr, "IO address for data, eg: 0x480");
module_param_hw(cio_addr, ulong, ioport, 0);
MODULE_PARM_DESC(cio_addr, "IO address for control, eg: 0x400");
module_param_hw(c2io_addr, ulong, ioport, 0);
MODULE_PARM_DESC(c2io_addr, "IO address for secondary control, eg: 0x408");
module_param(splashval, ulong, 0);
MODULE_PARM_DESC(splashval, "Splash pattern: 0x00 is black, 0x01 is white");

MODULE_DESCRIPTION("board driver for n411 hecuba/apollo epd kit");
MODULE_AUTHOR("Jaya Kumar");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/errno.h`, `linux/string.h`, `linux/delay.h`, `linux/interrupt.h`, `linux/fb.h`, `linux/init.h`.
• Detected declarations: `function n411_set_ctl`, `function n411_get_ctl`, `function n411_set_data`, `function n411_wait_for_ack`, `function n411_init_control`, `function n411_init_board`, `function n411_init`, `function n411_exit`, `module init n411_init`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration 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.