drivers/media/pci/dm1105/dm1105.c

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/dm1105/dm1105.c

Extension

.c

Size

29518 bytes

Lines

1240

Domain

Driver Families

Bucket

drivers/media

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/i2c.h
• linux/i2c-algo-bit.h
• linux/init.h
• linux/interrupt.h
• linux/kernel.h
• linux/module.h
• linux/pci.h
• linux/dma-mapping.h
• linux/slab.h
• media/rc-core.h
• media/demux.h
• media/dmxdev.h
• media/dvb_demux.h
• media/dvb_frontend.h
• media/dvb_net.h
• media/dvbdev.h
• dvb-pll.h
• stv0299.h
• stv0288.h
• stb6000.h
• si21xx.h
• cx24116.h
• z0194a.h
• ts2020.h
• ds3000.h

Detected Declarations

• struct dm1105_board
• struct dm1105_subid
• struct infrared
• struct dm1105_dev
• function dm1105_card_list
• function dm1105_gpio_set
• function dm1105_gpio_clear
• function dm1105_gpio_andor
• function dm1105_gpio_get
• function dm1105_gpio_enable
• function dm1105_setline
• function dm1105_setsda
• function dm1105_setscl
• function dm1105_getsda
• function dm1105_getscl
• function dm1105_i2c_xfer
• function functionality
• function dm1105_set_voltage
• function dm1105_set_dma_addr
• function dm1105_dma_map
• function dm1105_dma_unmap
• function dm1105_enable_irqs
• function dm1105_disable_irqs
• function dm1105_start_feed
• function dm1105_stop_feed
• function dm1105_emit_key
• function dm1105_dmx_buffer
• function dm1105_irq
• function dm1105_ir_init
• function dm1105_ir_exit
• function dm1105_hw_init
• function dm1105_hw_exit
• function frontend_init
• function dm1105_read_mac
• function dm1105_probe
• function dm1105_remove

Annotated Snippet

static struct pci_driver dm1105_driver = {
	.name = DRIVER_NAME,
	.id_table = dm1105_id_table,
	.probe = dm1105_probe,
	.remove = dm1105_remove,
};

module_pci_driver(dm1105_driver);

MODULE_AUTHOR("Igor M. Liplianin <liplianin@me.by>");
MODULE_DESCRIPTION("SDMC DM1105 DVB driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/i2c.h`, `linux/i2c-algo-bit.h`, `linux/init.h`, `linux/interrupt.h`, `linux/kernel.h`, `linux/module.h`, `linux/pci.h`, `linux/dma-mapping.h`.
• Detected declarations: `struct dm1105_board`, `struct dm1105_subid`, `struct infrared`, `struct dm1105_dev`, `function dm1105_card_list`, `function dm1105_gpio_set`, `function dm1105_gpio_clear`, `function dm1105_gpio_andor`, `function dm1105_gpio_get`, `function dm1105_gpio_enable`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.